Moore Industries | Moore Industries International

Rugged instrumentation for reliable measurement and control

Applications By Industry

NORTH HILLS, Calif.—Sep. 12, 2019—Our industry lost a great man and pioneer on September 6th, 2019.  Leonard W. Moore (Len) who was founder and owner of Moore Industries-International, Inc. (www.miinet.com) passed at the age of 85. Len was born November 26th, 1933 in Hazelton, Iowa where he attended elementary through high school. At the age of 16 he graduated high school and then attended Iowa State University where he obtained a BS in Electrical Engineering.

After graduating college Len entered the Army in 1953 as a weapons guidance specialist and spent time at Fort Sill, OK and Fort Bliss, TX. He then served time in Japan training and teaching soldiers how to operate, calibrate and repair various guidance and artillery weapon systems. It was here where Len realized he had a passion for instruments and control circuits. After his tour in Japan, he left the Army and returned home to Iowa.

Leonard W Moore

In 1958, newly married to wife Martha Moore and eager to start his career, he took a job with Hughes Aircraft in El Segundo, CA.  With one car and only a few suitcases to their name, Len and his wife packed up and headed west to start their new life. After a few years with Hughes and a few more engineering and automation jobs, Len made a bold decision to do things his own way – in 1968 he founded Moore Industries-International, Inc. in North Hills, CA.  Starting out in a small office with one employee and a very small budget, Len set out to design the most rugged industrial instrument solutions that he knew the industry needed.  He used to say that at Moore Industries “we are an engineering company that solves customer’s problems by manufacturing bulletproof solutions.”

Starting with one signal isolating/converting instrument, the SCT Signal Converter and Isolator, Len and his “troops” (the term that he used for the company’s employees) went on to design, build and support more than 225 different products that isolate, protect, convert, alarm, monitor, control and interface with any industrial or automation control and monitoring system. Len often said, “the best compliment we can get from our customers is that they forgot about our products or solutions because they performed so well that they just plain forgot they were ever installed.” This rugged M1 Tank design mentality, which he mandated, can be seen in most of the company’s products that are enveloped in solid aluminum cases instead of fragile plastic or polycarbonate housings.

More than 50 years after its inception, Moore Industries’ world headquarters is still prospering and remains in North Hills, CA. The company continues to manufacture 100% of its products at this USA location, something Len insisted upon.  With two acquisitions, more than 19 industry associated patents, 200 employees and remote offices located in the United Kingdom, The Netherlands, Belgium, Australia and China, the company continues to engineer, design, manufacture and support existing and new products for worldwide process control and automation customers. 

While Len had a passion for his company and its employees, he lived a full life outside of the company too.  Len was an accomplished race car driver spending time in racing schools, competing on the Trans Am Race Circuit, and even sponsoring an Indy Series car during the 1980’s.  Flying was also a hobby and interest of Len’s.  Although he had hundreds of hours under his belt flying right seat during work trips in the company’s Commander airplane, it wasn’t until 2005 that Len finally went ahead and formally got his pilot’s license.  During this time, he had another side project going on:  restoring, and later flying, a 1946 single engine Ercoupe in his hangar to museum-like condition with World War II Army Air Corps colors.  Len used to say, “this is the world’s most expensive Ercoupe”, which is no surprise because he was an absolute perfectionist. He later donated this plane to the Palm Springs Air Museum.

In 2009 Len was inducted into the ISA’s revered group of Honorary Members - individuals whose support of, and/or contributions to, the advancement of the arts and sciences of instrumentation, systems, and automation are deserving of special recognition.  Len was also a Professional Engineer, had a private contractor’s license and was, of course, a pioneer and cornerstone for our industry.

Len is survived by his three sons: Tony and his companion Sonnie, Nick, and Chris and his wife Deanna; his grandsons Nick, Matthew, Justin and Christopher; and his longtime companion Christine Hulfish.

To a smart, devoted and compassionate man with a quick wit and great sense of humor who left a long and impressive legacy - Godspeed Len, we will miss you greatly.

About Moore Industries-International, Inc.:

 

Based in North Hills, CA, Moore Industries is a world leader in the design and manufacture of rail, panel and field instruments for industrial process control and monitoring, system integration and factory automation. The company has direct sales offices in the United States and additional strategic worldwide locations in Australia, Belgium, the Netherlands, the People's Republic of China and the United Kingdom. The company serves a variety of industries such as chemical and petrochemical; power generation and transmission; petroleum extraction, refining and transport; pulp and paper; food and beverage; mining and metal refining; pharmaceuticals and biotechnology; industrial machinery and equipment; water and wastewater; and environmental and pollution monitoring. 

Many water and wastewater treatment facilities need 4-20mA signals from field transmitters and analyzers to be shared with their BPCS (Basic Process Control System) and alternate monitoring systems or SCADA system. Using area isolation, also known as signal splitting, by connecting the secondary system on the secondary side of the isolator, failure of this loop does not impact the primary loop to the BPCS. When connecting these secondary systems, such as a SCADA system, users can rest assured that if it fails or is removed, the primary host or control system will continue to receive the uninterrupted process signal. 

By using a narrow isolator you can double the isolator count in the same space. This is ideal for utilizing existing field mounted cabinets. When the cabinet needs to be located in an area with extreme ambient temperatures and the location is a hazardous area where climate control of the cabinet is problematic, a narrow isolator with necessary approvals that can withstand the extreme environment is needed.

ECT Skinny Haz Location Cabinet

Download the PDF file

The narrow 15mm ECT-DIN signal isolator and converter with 4-20mA, 1-5V and 0-10V inputs and 4-20mA output allows more isolators to fit in cabinets and field enclosures where installation space is a premium. Being UL Approved for General and Hazardous areas, and having the same RFI/EMI protection and -40°C to 85°C operating temperature range as the rest of the ECT family of isolators, this narrow and rugged isolator can be installed in hazardous locations and does not require installation in cooled or climate controlled environments making it perfect for more extreme locations.

Many process facilities need 4-20mA signals from field transmitters and analyzers to be shared with their BPCS (Basic Process Control System) and alternate monitoring systems or backup PLCs.  But wiring these three elements in series breaks loop integrity and can cause problems when the secondary or backup system fails or is disconnected. Using area isolation, also known as signal splitting, by connecting the secondary system on the secondary side of the isolator, failure of this loop does not impact the primary loop to the BPCS. They can connect these secondary systems, such as a backup PLC, and ensure that if it fails or is removed, the primary host or control system will continue to receive the uninterrupted process signal.  

By using a narrow isolator you can double the isolator count in the same space. This is ideal for utilizing existing field mounted cabinets. When the cabinet needs to be located in an area with extreme ambient temperatures and the location is a hazardous area where climate control of the cabinet is problematic, a narrow isolator with necessary approvals that can withstand the extreme environment is needed.

ECT Skinny Haz Location Cabinet industries

Download the PDF file

The narrow 15mm ECT-DIN signal isolator and converter with 4-20mA, 1-5V and 0-10V inputs and 4-20mA output allows more isolators to fit in cabinets and field enclosures where installation space is a premium. Being UL Approved for General and Hazardous areas, and having the same RFI/EMI protection and -40°C to 85°C operating temperature range as the rest of the ECT family of isolators, this narrow and rugged isolator can be installed in hazardous locations and does not require installation in cooled or climate controlled environments making it perfect for more extreme locations.

Many food, beverage and pharmaceutical process facilities need 4-20mA signals from field transmitters and analyzers to be shared with their BPCS (Basic Process Control System) and alternate monitoring systems or chart recorder.  But wiring these three elements in series breaks loop integrity and can cause problems when the secondary or backup system fails or is disconnected. Using area isolation, also known as signal splitting, by connecting the secondary system on the secondary side of the isolator, failure of this loop does not impact the primary loop to the BPCS. They can connect these secondary systems, such as a chart recorder, and ensure that if it fails or is removed, the primary host or control system will continue to receive the uninterrupted process signal.  

By using a narrow isolator you can double the isolator count in the same space. This is ideal for utilizing existing field mounted cabinets. When the cabinet needs to be located in an area with extreme ambient temperatures and the location is a hazardous area where climate control of the cabinet is problematic, a narrow isolator with necessary approvals that can withstand the extreme environment is needed.

ECT Skinny Haz Location Cabinet

Download the PDF file

The narrow 15mm ECT-DIN signal isolator and converter with 4-20mA, 1-5V and 0-10V inputs and 4-20mA output allows more isolators to fit in cabinets and field enclosures where installation space is a premium. Being UL Approved for General and Hazardous areas, and having the same RFI/EMI protection and -40°C to 85°C operating temperature range as the rest of the ECT family of isolators, this narrow and rugged isolator can be installed in hazardous locations and does not require installation in cooled or climate controlled environments making it perfect for more extreme locations.

The ability to use existing industrial Ethernet and wireless networks in process manufacturing plants and automation facilities has made data exchange within a facility and even throughout global corporate networks easier than ever. Process and diagnostics data from smart HART digital field instruments is being shared with mid and higher-level control, asset management and data information systems without having to upgrade expensive process control systems.

At Moore Industries, we are seeing numerous customers using the HES HART to Ethernet Gateway System to collect and transmit valuable smart HART device data to these higher level systems over Ethernet via MODBUS/TCP for predictive analysis and control decision-making.

In a recent application, a customer needed to control two valves which had Siemens smart HART positioners installed and had a further requirement to communicate actual valve position over Ethernet using MODBUS/TCP to their higher-level systems.

 

Stream Precise Positioning Data from Electronic Valve Positioners

Download the PDF file

Originally the customer wanted to use the Moore Industries model 535 or 545 PID Controllers to control the two valves in order to balance and/or limit each valve’s travel to maintain final pressure through the system, but they realized that the controller’s communication capability did not support Modbus/TCP as their DCS and Historian required.

Moreover, the higher-level monitoring systems wanted to monitor and record where actual stem positions currently were, not where the valve controller was driving them to via the 4-20mA signal.  This could only be obtained by reading the HART data from the smart positioners.

The HES 4-channel model was utilized to pick up the actual stem position HART data from the smart positioners and send it to the higher-level systems – no longer requiring the valve controller to communicate the CV (Controlled Variable), or desired stem position, output. The HES was an effective and economical solution that enabled the customer to take advantage of existing HART data from the positioners and share that critical data with their higher-level systems on their existing Ethernet infrastructure. 

 

Accelerate your HART data. Timely knowledge about your process enables better decisions and faster preventive action. Now you can get the process detail that you need from your Smart HART devices to MODBUS/TCP and HART-IP based monitoring and control systems at the speed of Ethernet with the HES HART to Ethernet Gateway System from Moore Industries.

Process facilities have a significant investment in the BPCS (Basic Process Control System) and upgrading with new HART capable input cards or a new control system in order to get HART data from newer smart HART devices is often cost-prohibitive. But they still need to get HART data from key devices to optimize their process. Plus, with expanding analytics capabilities of higher-level systems and the spreading adoption of IIOT, a way is needed to get that valuable data where it can be factored into predictive analytics.

IIOT Monitor Valve Positioners over Ethernet

Download the PDF file

In this example the BPCS MODBUS/TCP host for the process does not have any smart HART input cards. This existing point-to-point 4-20mA process loop uses a four-channel HES HART to Ethernet Gateway System to extract valuable PV data and diagnostics from HART smart valve positioners and reports it to the BPCS over Ethernet using MODBUS/TCP or HART-IP, without any BPCS upgrades. This can help provide early warning for critical valves before they fall out of performance specifications or fail. Additionally, any remote computer connected to the corporate network can view any data such as diagnostics and process variables gathered by the HES via a standard web browser. 

Key attributes

HES can poll for:

  • 240 Device Variables from 1 HART 7 device
  • 25 Bytes of diagnostic data (Command 48) in addition to the above variables

Process facilities have a significant investment in the BPCS (Basic Process Control System) and upgrading with new HART capable input cards or a new control system in order to get HART data from newer smart HART devices is often cost-prohibitive. But they still need to get HART data from key devices to optimize their process. Plus, with expanding analytics capabilities of higher-level systems and the spreading adoption of IIoT, a way is needed to get that valuable data where it can be factored into predictive analytics.

HES as a HART Mux Multiplexer for Valve Positioners

Download the PDF file

In this example the BPCS MODBUS/TCP host for the process does not have any smart HART input cards. This existing point-to-point 4-20mA process loop uses a four-channel HES HART to Ethernet Gateway System to extract valuable PV data and diagnostics from HART smart valve positioners, and reports it to the BPCS over Ethernet using MODBUS/TCP or HART-IP, without any BPCS upgrades. This can help provide early warning for critical valves before they fall out of performance specifications or fail. Additionally, any remote computer connected to the corporate network can view any data such as diagnostics and process variables gathered by the HES via a standard web browser. 

Key attributes

HES can poll for:

  • Dynamic Variables (PV, SV, TV and QV)
  • 128 Device Variables from HART 7 devices
  • 25 Bytes of diagnostic data (Command 48) in addition to the above variables

Process facilities have a significant investment in the BPCS (Basic Process Control System) and upgrading with new HART capable input cards or a new control system in order to get HART data from newer smart HART devices is often cost-prohibitive. But they still need to get HART data from key devices to optimize their process. Plus, with expanding analytics capabilities of higher-level systems and the spreading adoption of IIoT, a way is needed to get that valuable data where it can be factored into predictive analytics.

HES as a HART Mux Multiplexer

Download the PDF file

In this example the BPCS MODBUS/TCP host for the process does not have any smart HART input cards. This existing point-to-point 4-20mA process loop uses a single channel HES HART to Ethernet Gateway System to extract HART data from a smart HART flowmeter, converts it to MODBUS/TCP and reports it to the BPCS over Ethernet, without any BPCS upgrades. Additionally, any remote computer connected to the corporate network can view any data such as diagnostics and process variables gathered by the HES via a standard web browser. 

Key attributes

HES can poll for:

  • Dynamic Variables (PV, SV, TV and QV)
  • 128 Device Variables from HART 7 devices
  • 25 Bytes of diagnostic data (Command 48) in addition to the above variables

Process facilities in most industries have multitudes of HART devices monitoring processes throughout the plant. The challenge is getting all of the HART data from those instruments to the control systems and higher-level systems for predictive analytics while controlling costs and without running more wires.

4 Channel HAR to Ethernet Gateway

Download the PDF file

A four channel HART to Ethernet gateway is a perfect device to serve as a remote HART I/O interface to MODBUS/TCP hosts by multidropping up to 16 HART devices per channel, 64 devices total. For maximum density, the HES HART to Ethernet Gateway System can be used to gather hundreds of HART variables from multiple devices and send over Ethernet. If diagnostic bits and bytes are included, the data points reach into the thousands for each HES. Additionally, any remote computer connected to the corporate network can view any data such as diagnostics and process variables gathered by the HES via a standard web browser. 

Key attributes

HES can poll for:

  • Dynamic Variables (PV, SV, TV and QV)
  • 128 Device Variables from HART 7 devices
  • 25 Bytes of diagnostic data (Command 48) in addition to the above variables

Process facilities have a significant investment in the BPCS (Basic Process Control System) and upgrading with new HART capable input cards or a new control system in order to get HART data from newer smart HART devices is often cost-prohibitive. But they still need to get HART data from key devices to optimize their process. Plus, with expanding analytics capabilities of higher-level systems and the spreading adoption of IIoT, a way is needed to get that valuable data where it can be factored into predictive analytics.

Single channel HART to Ethernet gateway

Download the PDF file

In this example the BPCS MODBUS/TCP host for the process does not have any smart HART input cards. This existing point-to-point 4-20mA process loop uses a single channel HES HART to Ethernet Gateway System to extract HART data from a smart HART flowmeter, converts it to MODBUS/TCP and reports it to the BPCS over Ethernet, without any BPCS upgrades. Additionally, any remote computer connected to the corporate network can view any data such as diagnostics and process variables gathered by the HES via a standard web browser. 

Key attributes:

HES can poll for:

  • Dynamic Variables (PV, SV, TV and QV)
  • 128 Device Variables from HART 7 devices
  • 25 Bytes of diagnostic data (Command 48) in addition to the above variables

Sometimes there are temperature measurements that require advanced functions like differential, averaging or even high select capability.

Dual Input Capabilities for Temperature Measurements

Download the PDF file

Rather than running signal wires all the way back to a PLC or DCS to perform those functions, consider the TDZ/THZ3 Smart HART Dual Input temperature transmitters.  This family of transmitters can accept dual sensor inputs and can perform sensor backup/failover, averaging, differential, absolute differential, high select and low select functions. The THZ3/TDZ3 transmitter family can be HART or DTM programmed and carries worldwide approvals. 

Key Attributes:

  • Advanced measurement functions with dual sensor input
  • HART or DTM programmable
  • Worldwide hazardous area approvals

Every oil and gas site uses a vast array of different length solid sheathed, spring loaded RTDs and thermocouples.  Stocking these various lengths for every temperature measurement point can be very costly and time consuming.

the WORM – Field Cuttable Temperature Sensor

Download the PDF file

To lower inventory needs and increase your quality of temperature measurements, consider the WORM Flexible Temperature Sensor that comes in just about every type of RTD and Thermocouple.  With a quick measurement and a simple in-field trim-to-length, the WORM handles nearly every thermowell assembly.  The smaller mass of the WORM yields a 13% faster response time, minimizes ambient temperature effects and with its proprietary potting offers better resilience to high vibration environments, which is a common cause of failure with RTDs.  You can buy a single WORM, pack or three or save more money by ordering 10 in a can of WORMS.

Key Attributes:

  • Flexible WORM sensor fits almost any thermowell length
  • 13% faster response time
  • More resilient in high vibration applications that fixed length solid sheathed RTDs

Natural gas pipelines are under high pressure but not all sections of the pipeline are rated the same. Specifically, there is an area called the Specification Break which is defined as an area where high-pressure piping transitions to a lower pressure rated section.  Those areas are particularly vulnerable to ruptures or fissures and need to be monitored.

Over Pressure Protection for Pipeline Spec Break

Download the PDF fileDownload the PDF file

 

Rather than buying an expensive and complex safety PLC, look to the STA Functional Safety Trip Alarm as your Safety Instrumented System logic solver.  You can utilize three STAs in a 2oo3 voting scheme to initiate an emergency shutdown when a rupture or leak occurs at the Specification Break.  Similarly, you could do the same for the temperature.  The STA is SIL 2/3 capable, approved by exida and rated Class I Div 2/Zone 2.

Key attributes:

  • exida approved SIL 2/3 capable logic solver
  • Simple PC or push-button programming
  • Relays wired together to create simple 2oo3 voting logic

Tank overfill protection is required for all tanks holding hydrocarbons. Often this layer of protection is a Safety Instrumented System (SIS) that includes a level transmitter, logic solver and a shutdown valve.  

Oil and Gas Upstream and Extraction 6

Download the PDF fileDownload the PDF file


Rather than a complex and expensive safety PLC, look to the STA Functional Safety Trip Alarm as your Safety Instrumented System logic solver for tank overfill protection. The STA is simple to program and has an auxiliary analog output for retransmission to the local RTU.   The STA is SIL 2/3 capable, approved by exida and rated Class I Div 2/Zone 2.


Key attributes: 

  • SIL 2/3 capable
  • Easy programming
  • Class I Div 2/Zone 2 approval and local display

Upstream gas wellheads can experience extremely high pressure and surges. In order to protect personnel and equipment wellhead casing pressure is often monitored in case there is a situation where the wellhead needs to be shutdown. Traditionally simple pressure switches were used but today companies are required to implement proper safety systems.

Wellhead Gas Pressure - IEC61508 Certified SIL 2 Trip with AO

Download the PDF file


When required to add layers of protection at the wellhead site, consider the STA Functional Safety Trip Alarm as your Safety Instrumented System logic solver when an overpressure situation occurs. The STA is simple to program and has an auxiliary analog output for retransmission to the local RTU.   The STA is SIL 2/3 capable, approved by exida and rated Class I Div 2/Zone 2.
Key attributes: -SIL 2/3 capable -Easy programming-Class I Div 2/Zone 2 approval and local display

Coal seam gas that is extracted from the ground is full of water and other non-hydrocarbon compounds. Before the gas is sent to the storage well it has to go through a separator. These separators have to run at specific pressures.

Coal Seam Gas Wellhead Separator Over-Pressure Protection

Download the PDF file


Protect personnel and the separator with the STA Functional Safety Trip Alarm as your Safety Instrumented System logic solver by monitoring the separator pressure and turning off the water pump when an overpressure situation occurs. 

The STA is simple to program and has an auxiliary analog output for retransmission to the local RTU. The STA is SIL 2/3 capable, approved by exida and rated Class I Div 2/Zone 2.

Key attributes:

  • SIL 2/3 capable
  • Easy programming
  • Class I Div 2/Zone 2 approval and local display

SRM SST SSX horizontal PPstudy by the ARC Advisory Group in 2011 showed that 46 percent of all field devices installed worldwide communicate using the HART protocol. This is more than all fieldbus devices, proprietary protocols and 4-20mA (analog/non-smart) combined. There’s a good chance that you are have HART-enabled devices in use at your plant or off-site location. The question is: are you getting the most from HART?

Moore Industries has a range of products designed to help end users access the powerful information available through smart HART instrument systems. These products accept and "read" the HART digital protocol signal that rides on the 4-20mA wires of a smart HART multivariable transmitter or valve. Some of our HART products provide additional benefits such as isolating, splitting, converting or “breaking out” HART signals.

Here’s a look at our key HART products:

SSX and SST Safety Series Isolators and Splitters: Part of Moore Industries’ FS Functional Safety Series, the exida-approved, SIL 3 capable 2-wire (loop powered) SSX and 4-wire (line/mains powered) SST Safety Isolators and Splitters provide isolation and signal conversion for your SIS (Safety Instrumented System) needs. These units protect and enhance loops and also pass valuable HART data from the field transmitter to host systems and vice-versa. In addition, the SST Splitter model takes the input from one of your process signals and creates two identical, completely isolated outputs to two separate monitoring or control devices.

HIMHIM HART Interface Module: The HIM unlocks the full potential of new and in-place smart HART multivariable transmitters and valves. It allows up to three additional analog process variable measurements from a smart device with no additional process penetrations or wiring. It provides additional analog signals proportional to a multivariable transmitter’s primary, second, third or fourth variables, or to user-selectable valve parameters such as stem position. It also provides High/Low process and loop diagnostic alarms.

HCS HART Concentrator System: The HCS converts a HART digital signal to a serial (RS-485 or RS-232) MODBUS RTU communication protocol. This allows HART transmitters and valves to interface directly with MODBUS-based monitoring and control systems. It operates in point-to-point HART mode or up to 16 HART instruments can digitally communicate on the same wires in a digital multidrop HART network. It can monitor primary and non-primary variables along with HART instrument diagnostics.

You can see an example of how the HCS is used in remote natural gas settings with our online video.

These are just a few of our most popular HART products. For more information, check out the Smart HART Loop Monitors and Interfaces section of our website.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

sales teamvery two years, our International Sales team comes to Moore Industries our worldwide headquarters for a week of meetings. It's a great opportunity for the team to share ideas and plan their sales activities in the future. While the meetings are hard work, there are some opportunities to unwind. Moore Industries hosts a dinner for the team and there is an off-site activity to bring the team together. This year it was exciting go-kart racing followed by billiards.

Here's a look at some of the photos from the week.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Hazardex show

On February 27th and 28th MIE (Moore Industries-Europe Inc.) will attend Hazardex 2019 at the Holiday Inn Hotel in Runcorn, Cheshire, UK. Hazardex is a journal, website and Conference that provides up-to-date industry information on challenges and compliance. This annual event aims to strengthen and expand the community in the process industry that looks to Hazardex for news and information on hazardous areas and Functional Safety issues. MIE will be exhibiting intrinsically-safe, explosion proof and functional safety products such as SPA2ISTHZ3STASTZSSTSRM along with Moore Industries new HES, HART to Ethernet Gateway System

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

IPT2 Q:  A field tech told me he installed an IPT2/4-20MA/3-15PSIG/20PSIG/-FA1 [DIN] unit.  In the product bulletin I don't see a purpose for the trailing "2" in the model name, and I don't see an explanation for -FA1.

A: The “2” in IPT2 indicates that it is the successor to the older IPT. It is a direct replacement with same form/fit/function with improved performance.

The -FA1 option code is explained in table 2 on page 3 of the data sheet (click the link to open the download page).

It means that it has a mounting block for installation of the unit on DIN rail.  It also designates that the supply and outlet ports are on the bottom of the mounting block, the electrical signal test jacks, and electrical connections are on the front face, and that there is no pneumatic test jack.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

SPA ppQ: We are considering ordering the Moore Industries SPA/0-100mV/2 PRG/U/-SOL [DIN]. Can we power it using 24VDC? If so, what is the power consumption and how do we terminate? Also, can you please confirm whether this unit is Class 1 Div2, group A,B,C,D?

A: The SPA can be powered with 24VDC. It accepts any source voltage in the ranges of 22-300Vdc or 90-260Vac. Power Consumption is 2-4W, nominal; 6W, maximum.

If you specify the -HS option (hermetically sealed relays) then it is approved for Class 1 Division 2 locations when installed in an enclosure that provides sufficient mechanical and environmental protection. Usually, a NEMA 4 rated box will serve. See page 1 of the data sheet (click the link to open the download page).

The sample model number with -HS option and with a NEMA 4 enclosure is:
SPA/0-120MV/2PRG/U/-SOL-HS [R3H]. 

The –SOL option in this model number indicates a specially engineered SPA used to monitor the health of solenoid valve coils.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Q: What are some ways to improve the long-term stability of my RTD temperature measurement?

 

A: There's no question that the first step in improving the overall quality and long-term stability of your temperature readouts is to use a Class A, 4-wire RTD. Lead wire imbalances are a major cause of instability during the measurement process. A single ohm of imbalance in a three wire, platinum .00385 alpha, 100 ohm RTD can produce as much as 2.5°C of error in a measurement. By adding a fourth lead wire, you eliminate potential errors in measurements created by resistance imbalances between leads. 4-wire RTDs are no longer just for special uses, and they aren't cost-prohibitive. In fact, in many cases they are more cost-effective than using traditional 3-wire RTDs.

4 wire RTD

 

 

Another way to improve long-term stability is to make sure that your RTDs have been thermally aged. This process involves placing RTDs into a continual cycle of temperature extremes that season the RTD and even help extend its measurement life. The sensors that we use in high-accuracy applications have been temperature cycled from 0°C to 600°C for 1,000 hours, making them virtually drift-free for the next five to 10 years.

See more about Moore Industries' Temperature transmitters and temperature solutions.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

 

ehelp spa2Q: For the STA 4-Wire SIL 2 and SIL 3 Compliant Programmable Current/Voltage and RTD/Thermocouple Safety Trip Alarms, can the process alarm relays be configured as Failsafe?  Can the process relay output of the SPA2-TRPRG be configured Failsafe?

A: The output relays of the STA are configured only as Failsafe.  For example, the coils are de-energized in the alarm condition or when there is a loss in power.  For systematic integrity up to SIL 3 and for random integrity up to SIL 2, the STA is also exida certified 61508:2010.  This means that an STA is approved for single use in Safety Instrumented Systems (SIS) up to SIL 2 and in redundant architectures (1oo2, 2oo3, etc.) up to SIL 3.

The output relays of other alarms that we offer such as the SPA2 can be configured either as Failsafe or Non-Failsafe.

Download the SPA2 or STA data sheet for more details.

SPA2 Low Level Q: Does your SPA2 have a SIL 2 rating?

A: The SPA2 can be used in safety instrumented systems (SIS) as long as the appropriate safety-related data and restrictions in use are reviewed and followed by a competent safety practitioner. We have a FMEDA (Failure Modes, Effects and Diagnostics Analysis) report that provides this data for the SPA2, and is available upon request.

We also offer the STA Functional Safety Limit Alarm Trip, which is expressly designed for safety related applications and has third party certification (exida) per IEC 61508:2010 for systematic integrity up to SIL 3 and for random integrity up to SIL 2.

The exida certified FMEDA data can be provided and used by a competent functional safety practitioner to calculate the required PFDavg and determine the SPA2s or STAs SIL capability and overall suitability in your Safety Instrumented Systems (SIS). 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

thz3 tdz3Q: I am looking for a signal conditioner that has multiple inputs (RTD) that can be averaged on one mA output.  What do you recommend?

A: First determine how many RTDs you need to average, the number of wires (2-wire, 3-wire, or 4-wire), and are the cable lengths the same for each RTD? Then we can help you determine which product will fulfill your specific needs.

Moore Industries has several products that can handle multiple RTD inputs and provide a calculated average output. 

Both field-mount and Din-mount models are offered.  The THZ3/TDZ3 models handle two RTD inputs while the SPT, MDS and NCS handle three or more RTD inputs.  If you have an application that involves Safety Instrumented Systems (SIS), the STZ transmitter family can be used.

The THZ3 is a smart HART two-wire, output loop powered transmitter that comes in a hockey puck configuration for field mount applications or in a DIN rail mount package for cabinet installations.  The TDZ3 is a field mount unit with an integral display.  Both units offer the ability to output a 4-20mA signal that represents the average of the RTD inputs.

SPT ppThe SPT accepts T/C, RTD, millivolt, or ohms input in different ranges, sensor types, and connection schemes.  The SPT has a simple menu system and LCD screen for easy setup and calibration, and all settings are stored in non-volatile memory, protecting them from power loss.

The I/O Equation Station Multifunction Distributed I/O System (MDS) is a four-wire module that can average up to 4 RTDs.  The number of wires per RTD depends on the number of RTDs that can be connected. 

The Net Concentrator System (NCS) is an expandable I/O system that consists of input and output modules that  can be configured to accept any number of RTD inputs to calculate an average output. The NCS can be programmed to handle a wide range of signal input and output including current, voltage, discreet, relay, RTD, thermocouple, resistance, and potentiometer with an operating range of -40°C to +85°C.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

STA EhelpQ: We do not have sufficient PLC digital output spares to perform a Manual Reset of the three installed safety temperature controllers. We are going to remove the alarm latching on both limits and faults on our STA Functional Safety Alarm Trip. The Manual Reset radio button stays active in the STA configuration software. Will the latches clear after we are outside the dead band limits? 

A: The radio buttons selected in the Manual Reset rectangle are irrelevant if you have not checked any of the Latching check boxes in the Display Alarms tab. Therefore, if latching is unchecked, the alarm state will reset once normal conditions exist after a brief event.

When using the configuration software, settings are downloaded to the instrument in the form of a Configuration File and stored in the instrument’s memory. You can save a backup copy of the file on your PC hard drive. The STA communicates with the PC through an RS-232 connection to the PC’s serial port or optional USB Communications Cable. Learn more about the STA Functional Safety Alarm Trip.

Wet WellProblem: Municipalities often have several wet well locations around a city that pump waste from low lying areas up to main sewage veins that feed waste treatment plants.  Level instruments monitor the wet well level and controllers then engage the grinder pumps.  Since wet wells contain waste, volatile gasses such as methane require that these level instruments be rated for use in Class I, Div 1 environments.

Solution: When IS (Intrinsic Safety) is chosen as the method of protection, a separate IS barrier is required for each level transmitter that is wired to the pump controller. The SPA2IS Alarm includes a built in IS barrier for the level instrument located in the wet well.  This means that the separate IS barrier does not have to be purchased, installed and maintained.  The SPA2IS has four alarms, each configurable with 0-100% deadband, which makes it an ideal fit for a wet well level controller.

SPA2IS Wet Well Diagram

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

whitepapersMake sure you check out the Technical White Papers section of the Moore Industries website. It's a great resource to find out more information about Moore Industries and our products. The white papers available for download cover a variety of topics including:

  • Alarm Trips and Logic Solvers
  • Intrinsic Safety
  • Functional Safety
  • Process Control and Distributed I/O Networks
  • Temperature Measurement
  • HART and Fieldbus

These are just a few of the topics covered in our white papers. Get technical information on the installation and use of Moore Industries products or read about how customers are using Moore Industries' instrumentation in real world settings. Our White Papers are free to download and just a click away.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

HCS norails ppQ. What are the advantages and limitations of HART protocol or an instrument with MODBUS communication embedded? How many instruments can the HCS interface in the same loop? Are we able to read/write the five instruments at the same time using HART?

A. Today, a major advantage that HART and MODBUS RTU possess is industry- wide acceptance by users and manufacturers. HART-enabled transmitters, valve positioners, flowmeters, and other smart devices superimpose a digital signal upon their 4-20mA process signal. Combining digital communications with the 4-20mA DC signal provides flexibility of application for process control instrumentation and accommodates multiple variables and device self-diagnostics. HART field transmitters measure process parameters as well as generating a 4-20mA signal used for process control by a DCS, PLC or some other control system and are easily configurable or diagnosed with a HART handheld communicator (HHC). Several digital control system vendors offer a HART based systems for predictive maintenance that take advantage of the HART devices’ self-diagnostic capability. The disadvantage to HART is that the digital signal is slow. A maximum of 16 HART devices can be connected on a HART multi-drop loop. In that case, the analog signal is fixed to a value of 4mA.

The advantages of MODBUS RTU are that it is strictly digital (RS485) and it’s relatively fast but it does require at least two wires for signal and two wires for power; unlike HART that has signal and power over the same two wires. A significant number of MODBUS RTU addresses can be connected in multi-drop on the signal RS485 data link. 

The HART Concentrator System HART-to-MODBUS RTU Converter (4-Wire) HCS is a HART Master (either the primary of the secondary master), and sends queries to the HART device(s). The HCS can communicate with up to 16 devices in multi-drop mode on one twisted pair loop. The collected data is stored in MODBUS RTU registers in the HCS. On the MODBUS side, the HCS is a MODBUS RTU Slave, so it responds to queries from a MODBUS RTU Master. The MODBUS RTU Master can only read data from the HCS. It cannot write data to the HCS with the intent to change settings in the HART device(s).

In a HART multi-drop loop, each instrument will have its own unique HART address. HART does not allow simultaneous communication to multiple instruments in a multi-drop loop. Instead a HART master or host has to poll each HART slave’s unique address and communicates with one HART device at a time. Moore Industries’ HCS HART Concentrator System converts a HART digital signal to a serial (RS-485 or RS-232) MODBUS RTU communication protocol. This allows HART transmitters and valves to interface directly with MODBUS-based monitoring and control systems. In point-to-point HART mode, the HCS is set to monitor a single instrument. Wiring details for both single loop and multi-drop are shown in the HCS. In a multi-drop, the HCS sends queries and receives data from each HART instrument in turn. This follows the defined HART protocol.

Find out more about the HCS.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

WORM photoOne of our customers uses ethylene for its process feed and has installed a new ethylene terminal with a 18m3 storage tank. It was necessary to install a new pipeline network to connect the terminal to production plants, other existing pipelines, and to neighboring companies using ethylene. For safety reasons, the pipeline was buried 1.5 meters deep.

To monitor temperatures across the pipeline, 16 temperature sensors needed to be installed at various points. Because the integrity of the pipeline was critical for safety reasons, there could be no welding or other intrusions into the pipe. This led to using skin sensors that meet ATEX Explosion-Proof requirements to take the temperature measurements.

A typical solution is a 6mm-diameter mineral-insulated RTD or T/C sensor with a skin path that is strapped to the underground pipe while a cable travels to the surface where the head is installed. The problem with this design is if the sensor fails, it requires expensive digging near the underground pipeline to replace. A better solution uses a pipe skin mounting block strapped onto the buried pipe, a 1/2"-diameter stainless steel pipe that reaches the surface and a transmitter directly mounted onto the pipe. This allows a sensor to be replaced without costly digging but also means that a sensor needs a sensitive tip. 

A perfect choice for this application is the WORM Flexible Sensors for Thermowell Temperature Assemblies. It provides accurate, fast readings and its flexible design with a universal length allows it to reach almost any spot. The WORM’s unique flexible design allows installation quickly and it delivers step response times 13% faster than standard sensors. The installation kit provides parts for three different installation options. The WORM can be purchased in economical 10 packs. Check out the WORM data sheet for more details.

Want to learn more? Get the product data sheets on other products such as THZ3 & TDZ3 Dual Input Smart HART Temperature Transmitter, THZ DH & WL Smart HART and WirelessHART Temperature Transmitter (2-Wire), and BULLET WirelessHART Adapter.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

ECTQ. I have an application that requires an analog splitter. The single input signal to the splitter comes from a transducer, and the transducer requires loop power. The two outputs are going to an analog monitoring card on a PLC, which provides power to the connected 4-20mA signal signals. Is the ECT what I need?

A. If you need a device with two outputs and with output loop power, the MIX would be a good choice. However, this model does not provide loop voltage to the input. It is a dual channel isolator so you would connect the input signal in series to the two input channels. MIX 2 and 4-channel models draw operating power from the loop output side, where power is typically made available by the receiving device, such as a DCS or PLC.

The ECT “Splitter” on the other hand provides loop voltage to the transducer, and it also provides the voltage to the two output loops. It requires a power source separate from the output signals.

You can specify either 24DC or 117AC for the separate power input. If the outputs must be compatible with a control system input card that is providing loop voltage then the EP option for the ECT modifies them to be passive. However, a separate power source is still required. The ECT offers Superior signal isolation (up to 1500Vrms). An ECT with the following model number would meet your application requirements: ECT/4-20MA/4-20MA/24VDC/-EP [DIN]

Quality and industrial strength protection stops ground loops, motor noise, and other electrical interference from affecting process signals. The ECT offers RFI/EMI protection against the unpredictable, harmful effects of radio frequency and electromagnetic interference. There is even a –RF option for enhanced protection in especially noisy environments.

Please visit our Interface Solution Download Center for more information on the MIX or the ECT line of products.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

HIM ppQ. I want to split out the HART variables from a smart multi-variable transmitter's 4-20mA analog output.  My preference is to have the secondary variable (SV) and tertiary variable (TV) represented as additional 4-20mA outputs so I can connect those to spare analog input channels in my DCS. Can the HIM do that?

A. Yes, it can. The HIM is a Smart HART® Loop Interface and Monitor can be configured to act as a Primary or Secondary Master and can read up to 4 of the dynamic variables of a HART transmitter and can assign them to up to three analog 4-20mA outputs with no additional process penetrations or wiring. A free simple-to-use PC program lets you program the HIM in minutes so that it interfaces with every HART-compatible monitoring and control device including: 

  • Multivariable Mass Flow Transmitters 
  • Coriolis, Magnetic, Ultrasonic and Vortex Flow Meters 
  • Dual-Sensor Temperature Transmitters 
  • pH Transmitters 
  • Pressure Transmitters 
  • Radar and Hydrostatic Level Transmitters 
  • Valve Positioners and Damper Operators 

When configured as a Primary or Secondary Master, the HIM operates in the Normal(Poll/Response) Mode.  Additionally the HIM can be configured to communicate in Burst Mode or Listen Mode; which are both passive modes where the HIM does not need to control poll the HART slave transmitters.

Installed transparently across the 4-20mA instrument loop, the HIM reads the HART digital data that is continuously being transmitted on a smart transmitter’s analog loop wires, and converts it to 4-20mA signals that can be readily accepted by a DCS or PLC. This allows you to continuously track a multivariable transmitter’s second, third, and fourth variables.  

In the future if you want to just isolate or split off a HART/4-20mA signal, then Moore Industries offers isolators, which can pass the digital HART component variable of the signal. Isolator models Moore Industries manufactures are the HIX, HITSSX, and SST.

Find out more about the HIM Smart Hart® Loop Interface and Monitor.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Q. Can the ECT-DIN, configured for 4-20mA input and 4-20mA output, be calibrated to give 4-12mA output when the input is 4-20mA so that the output is 1/2 the input? We have a radio I/O signal that is scaled to 4-20mA for 0-65,535 raw units. When sent to the PLC over MODBUS, it can't be read properly since the maximum register value size for the PLC is limited to 32,767.

 

ECT

A. The ECT with 4-20mA input/output doesn’t have enough adjustability to do a split range like the one you describe. Although it is possible for us to supply a special version of the ECT with 4-12mA or 12-20mA output, or you can use a PC configurable unit such as the CPT/HLPRG/0-20MA/117AC [DIN].

The universal CPT PC-Programmable Temperature Transmitter and Signal Isolator/Converter accepts a direct signal input from a wide array of sensors and analog devices including 23 RTD types, 9 thermocouple types, current and voltage signals, resistance and potentiometer devices, as well as direct millivolt sources. The 4-wire (line/mains-powered) CPT provides an isolated and linear current or voltage output (any range within 0-20mA or 0-10V) proportional to the input. The signal is ready for direct interface with readout instruments, recorders, PLC, DCS, or PC-based SCADA systems.

The CPT data sheet, manual, and configuration software can be downloaded from our site.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

SPDQ.  We want to use a SPD Field-Mount Programmable Loop Display with a radar transmitter mounted on the top of a cone-shaped bottom tank that outputs 4-20mA signal, and we would like to know how to account for the linearization function representing the volume measurement in the tank at various levels?

A. There are several things you can do depending on what information you have regarding your tank. Some tanks come with a strapping chart and the chart will tell you what volume you have at different levels inside the tank.

In this case, you can load a list of ordered pairs in a CSV (comma separated value) format into the SPD. Alternatively the SPD configuration software allows you to import a CSV (comma separated value) file that represents your linearization table, from Microsoft Excel for example. The SPD allows for custom curves using up to 128 linearization points.

If you do not have a strapping chart, you will need to do some math to relate the level in the tank to the tank volume based on the geometric shape(s). For example, at 5 inches you may have 5 gallons, and at 8.5 inches, you might have 10 gallons. If you have a vertical cylinder on top of a cone, the calculations should be relatively easy. A more difficult calculation would be a horizontal cylinder with F&D (flanged & dished) heads and with various nozzles.

The SPD is an excellent choice as a programmable field-mount loop indicator with extra-large 5-digit display that has large 29mm (1.15 in) digits for long-distance viewing and can be ordered with a back-lit option. The optional back-lit display makes it easy to read in dark conditions. Superior accuracy allows the SPD to display process information ±0.012% of input scale, it can operate in ambient conditions as low as -40°F, and a standard SPD is loop-powered by less than 2.3 volts (2.3VLP power input module). The SPD is also programmable with supplied configuration software to display a percent or any other engineering unit (EGU) of up to 5 characters.

Find out more about the SPD.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

ECTQ. What is the maximum impedance that the output of an output loop powered ECT-DIN can drive?

A. For the output powered ECT (model ECT/4-20MA/4-20MA/12-42DC [DIN]) the max impedance that the output can drive depends on the loop voltage that you supply in series. For example, if you use a 24Vdc supply in series with the ECT’s output, the ECT uses 12V of the 24, and 12V is left over to handle loop loads: 12V/.02A=600 ohms. Note that you may want to account for the transmitter tied to the input of the ECT going to a fail high level of 23mA.  If so, then the max impedance level will only be 521 ohms.

The ECT-DIN is a signal isolator, converter, repeater, booster and splitter and is available in 2-wire and 4-wire powered models with the ability to match the ECT to the type of AC or DC power available at each location, superior signal isolation up to 1500Vrms, and RFI/EMI protection. 

The ECT-DIN also allows you to send the output from one transmitter to a second location. Additionally you can protect expensive monitoring/control equipment by eliminating common electrical paths or create a buffer between devices to allow interruption of one leg of a loop without impacting the other (see gallery image below for example). The ECT-DIN can even step down unsafe high level signals with an optional external input transformer (-EM option), allowing you to step down high level AC current inputs.

Learn more about the ECT-DIN.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

SRM SST SSX horizontal PPQ. I want to share a critical pressure signal with my DCS that is now part of our safety instrumented system (SIS) and have a two part question. First, do your isolators pass the HART diagnostic data that comes from my SIS smart pressure transmitter? Second, if there is a total failure of the pressure transmitter, where will the output of the isolator go to that is feeding my DCS?

A. Yes, we have isolators that were designed specifically for these types of applications. The SSX and SST are exida approved SIL 3 capable isolators that pass HART data between any HART host or handheld device and the field transmitter. The second part of your question has two answers.

The SSX is an output loop powered isolator and as such when the input goes to 0mA the output will only drop to a minimum of about 2-2.5mA. The floor or minimum output is necessary because the SSX will need some level of current to keep its electronics circuit powered.

The SST is a four wire isolator so it behaves a bit differently. The SST’s output will follow the input through the entire range. For instance, if the input goes to 0mA or open circuit the output of the SST will follow the input all the way down to 0mA. Depending on your DCS settings, you can then choose when and how you want to alarm on the pressure transmitter’s health or loop status. 

Find out more about the SSX and SST.

THZ3 DINQ. Do you have a temperature control solution for a batch process chamber we have?  We have a manufacturing process that uses a critical batch process chamber requiring an RTD that senses the temperature. When the process chamber is being used, we need to maintain temperature, so we have a secondary temperature monitor to help in case of a fail-over. To do this, I need to connect to our RTD that has dual 4-wire inputs and be able to switch from the primary to secondary if the primary is disconnected or fails.

A. You can use a  Moore Industries’ THZ3-DIN temperature transmitter to precisely control the temperature. The THZ3-DIN can accept two 3-wire RTDs and can be configured so that its 4-20mA analog output is configured for failover/backup. If the primary RTD fails or is disconnected, the THZ3 automatically switches to the secondary RTD, it gives you a HART®alarm (and display an error if TDZ3 is used), and allows you to maintain the temperature measurement in the chamber.

You can use your existing 4-wire RTDs as 3-wire elements by taping off one of the leads. You will still have lead length compensation with the 3-wire RTDs as long as the leads are the similar length and have equal resistance.

The THZ3 can be configured by using a HART® hand held configurator or with PACTware running on a PC. A CDROM is provided with the PACTware installation files and DTM for the THZ3 with the shipment of the device. The THZ3 data sheet, manual, HART®DD, PACTware installation files, and the DTM are also available for download on Moore Industries site.

An easy-to-use yet robust Dual Input Smart HART® Temperature Transmitter, the THZ3 configures quickly and easily to accept a direct signal input from a wide array of sensors and analog devices including 14 RTD types and direct millivolt sources. The THZ3 has dual sensor input for Backup and Failover Protection, Average and Differential measurement and Low or High Select. It also has advanced RFI/EMI protection and ambient temperature compensation that helps guard against environmental factors that can quickly degrade measurement accuracy. Built-in 20 bit input resolution delivers exceptional digital accuracy of ±0.1°C (±0.18°F) with all Pt RTDs and is HART® 7 compliant with exception based reporting and dynamic variable mapping. There's even a High Availability Option that enables the user to select how the AO behaves when there is an input failure or out-of-range value detected by the transmitter that prevents nuisance alarms on startups.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

PSD 300 webQ. Can the PSD PC-programmable loop display pass HART® data without problems through the device if placed in a loop with a HART® capable transmitter?

A. The input of the PSD connects in series to the existing 4-20mA/HART®loop as if it was just an added resistance and only reads the analog 4-20MA signal. The PSD does not interfere with the HART®digital signal being transmitted on the loop.

Since the PSD does not have a path to ground or an output that could connect to another device, ground loops or other issues like extraneous conducted noise are not a problem.

However, when these loops do connect to devices that have separate ground paths or outputs problems can certainly arise.  For these situations we recommend HART® pass-through isolators such as the HIX 2-wire output-loop powered unit or the HIT, a 4-wire mains powered isolator.

Moore Industries’ HART Isolators are a highly economical solution to common and costly problems that plague many of today’s “smart” process loops offering protection from surges, spikes, and transients up to 1500Vrms. You can safely share the HART® output of one transmitter with a secondary control or recording device allowing for redundancy without further burden or risk on a process loop. As an added bonus, you can perform equipment maintenance without loop downtime by isolating legs of the loop, making it possible to remove those instruments from the circuit without affecting other equipment. Protect and enhance your HART® investment with the 2-wire (loop powered) HIX or the 4-wire (line-mains powered) HIT.

Learn more about the HIT/HIX HART Isolator and the PSD PC-programmable Loop Display.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Worm with TermocouleQ: A Type K thermocouple is being used in a high temperature furnace environment for temperature measurementHowever the Type K thermocouple is drifting too much. Is there something I could do so I don't have to change it out frequently or is there another type of thermocouple I could use?

A: You could use a Type N with Inconel 600 Material, which is designed to perform well at high temperatures (over 2000F) and helps prevent corrosion in environments where atmospheres are reducing or alternately oxidizing and reducing. This would be particularly helpful for a furnace process that includes heating and cooling with moisture present, creating potential for oxidation to form from the process. Other high temperature environments that benefit from Type N with Inconel 600 Material include boilers and cookers processes or extreme environments where the thermocouple cannot be replaced easily.

In terms of their basic function, Type K and Type N thermocouples are similar. Type K is one of the most common type of general purpose thermocouple. However, the environmental setting that your thermocouple will be used in can affect your choice. Type N thermocouples provide a higher level of stability and durability in adverse environments than Type K thermocouples. 

To be more specific, Type K thermocouples are susceptible to a phenomenon called Green Rot, or oxidation around the thermocouple. Green Rot is oxidation inside the thermocouple sheathing caused by operation at certain low oxygen environments, creating large negative calibration drifts leading to curve changes over time. Potential IR failure can happen, where the internal elements short and touch the outer sheathing due to oxidation (Green Rot). 

Type N is also a viable choice when adverse environmental factors and high temperature requirements are an issue and there is difficulty in frequently changing out the thermocouple. While a Type N with Inconel 600 Material is only 20% higher in cost than Type K, the Type N can perform longer without the drift that oxidation causes, preventing the need to shut down the process to change out the oxidized thermocouple.

If you decide that Type N thermocouple isn't for you and are using a Type K thermocouple where your environment is the key factor instead of temperature, you can reduce the chances of Green Rot by increasing the oxygen supply through the use of larger diameter protecting tubes. The opposite approach can also work by inserting a mechanism to absorb oxygen inside a tube which can bring oxygen levels below what will promote oxidation.

Moore Industries can help when you are deciding if Type N is viable replacement for your Type K thermocouple application. You can contact us with your questions or if you need to know more about a product, price or availability.

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

ECTQ. I have two different control systems and I need some splitters to split a 4-20 mA signal. I may need to have the loop isolated. Can you help specify a splitter that can send the signal to both control systems where I can use the splitter connected in a series on the original loop? My company has used the SIX in the past, would this work?

A. The SIX can be used in a “splitter” application when its input is connected in series on the original loop. The output of the SIX 2-Wire Signal Isolator/Converter gives you the isolated loop. The versatile SIX can be used as a signal isolator, converter, and repeater. It is an excellent choice for installation in the plant or control room. The 2-wire (loop-powered) SIX derives its power from the output loop, eliminating the need to install an additional power supply.

If you decide you need to have the two control systems isolated from the original signal, then you can use the ECT-DINmodel ECT/4-20MA/2X4-20MA/117AC* [DIN] Signal Isolator, Converter, Repeater, Booster and Splitter for more versatility. The ECT-DIN features a solid metal housing that stands up to the continuous, daily rigors of process control and factory automation applications.

Like the SIX, the ECT's input is wired in series with your original loop. The ECT then gives two separate and isolated outputs for your two control systems.  Each output is capable of driving 600 ohms of output load.  This version of the ECT also offers a TX option that powers a two-wire transmitter connected to its input.

If you have functional safety in mind, the SSX/SST Model number SST/4-20MA/2X4-20MA/117AC* [DIN] works like the ECT but is part of Moore Industries’ FS Functional Safety Series. The SSX/SST Safety Series Isolator and Splitters are exida® approved, SIL 3 capable. The SSX is 2-wire (loop powered), and the SST is 4-wire (line/mains powered). The SSX/SST provides isolation and signal conversion for your SIS (Safety Instrumented System) needs. These units protect and enhance loops and also pass valuable HART® data from the field transmitter to host systems and vice-versa.

The ECT and SST are line powered and supply the voltage to their outputs, so the control systems receiving their outputs must have passive inputs. If your control system inputs are active (providing power), contact us and we can modify the ECT or SST for those loops too.

Other things to consider:

Do you need to pass digital HART signals between the input and outputs?

  • The ECT filters the HART component
  • The SST passes HART on the outputs (both or neither) 
  • The SST is from our line of Functional Safety products

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Q: Is there a less complicated and economical solution to replace a failed thermocouple than a complete shutdown of a boiler?

A: To address this issue, we need to note that furnaces, boilers, and reactors present an interesting problem when trying to replace a failed thermocouple. Typically to replace thermocouple sensors, the entire furnace or boiler must be shut down for long periods of time creating downtime and lower productivity. Most facilities will try to schedule this type of shut down once every 4 to 5 years because shutdowns are time consuming and costly. Once the boiler is down, most customers will remove all of the sensors, and perform a full replacement, to prevent shutdowns for as long as possible. Facility maintenance personnel with special training in “Small Space Confinement” must do the replacements. 

Because this kind of replacement is costly in both downtime and new sensors, if a sensor fails, that particular temperature measurement is lost until the next maintenance schedule. A facility will not shutdown a boiler earlier than originally scheduled even if more than 50% of the sensors fail before the maintenance schedule, unless there is a critical safety issue requiring shutdown. 

Thermocouples are long, typically about 20 to 40 feet long. They have a small metal pad welded to the tip of the sensors sheath with the weld pads tack welded to the surface of the Protection Tube (pipe) inside the high-temperature area making them typically expensive to replace. 

Moore Industries has a simple and economical solution to this complicated process: The WORM Flexible Temperature Sensor. It lets you replace the sensor without removing the Protection Tube or disassembling the thermowell by just replacing the broken sensor. The High Temperature WORM is a flexible sensor for thermowell temperature assemblies that is available in standard sensor types including 100 and 1000 ohm platinum, nickel and copper RTDs, and J-, K-, T-, E- type thermocouples with step response times 13% faster than standard sensors. The WORM comes in a universal length so there’s no need to stock an expensive array of different sensor lengths. With a quick measurement and a simple trim-to-length, the WORM handles nearly every thermowell assembly.

For boiler tube applications, the WORM ships with a hollow protection tube that includes a weld pad with a thermocouple WORM Sensor that enables sensor replacement from outside of a boiler. The tube is hollow and allows a flexible Worm Sensor to slide down inside the Protection Tube from outside the boiler. This allows the customer to replace a sensor, if it should fail, anytime while the furnace is still up and running.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

ECTQ. Is there a signal conditioner with 0-2Vdc input and two isolated 4-20mA outputs with 24Vdc?  I need it as compact as possible because I need to install it horizontally in a cabinet. 

A. The ECT-DIN series dual 4-20mA output can be provided with a modified input to accept a 0-2Vdc signal. Moore Industries offers a build option from the factory (the ECT which acts as a Splitter).  The model number for an ECT with this configuration is ECT/0-2V/2X4-20MA/24DC [DIN]. Typical installation of an ECT is a DIN mount so the housing we offer is a DIN-style housing which mounts on 32mm G-type (EN50035) and 35mm Top Hat (EN50022) rails.

The ECT-DIN is rugged as well as reliable and is available in 2-wire (loop) or 4-wire (line/mains) powered models.

The complete family delivers economical solutions for an expansive range of signal interface applications such as protecting equipment and signals by eliminating common electrical paths, amplify signals allowing more instruments on an overburdened loop, isolate signals to prevent erratic measurements, convert signals so field devices can interface with equipment such as an indicator or PC-based SCADA system, split one signal to allow one primary measurement to be sent to two separate systems, and solve bucking power supplies. The ECT has superior signal isolation up to 1500Vrms and stops ground loops, motor noise, and other electrical interference from affecting process signals.

For more information on the ECT, view the product page.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

spa2 headQ. Can the SPAbe placed in an existing 4-20mA loop as passive? 

A. The SPA2 can be wired using the passive input (+I and COM) in series in your 4-20mA loop. It will add about 20 ohms to the loop.

When ordered with the Analog Output (-AO) option, the SPA2 provides a proportional and isolated analog retransmission of the input signal that can be sent to remote monitoring/control devices like a DCS, PLC, PC, indicator or data recorder, making it  completely isolated from the input. All analog parameters can be selected using the SPA2 push buttons or the free easy-to-use Intelligent PC Configuration Software.

The SPA2 Programmable Limit Alarm Trips provide on/off control, warn of unwanted process conditions, alarm on rate-of-change, and provide emergency shutdown.  Very versatile, the SPA2 accepts a signal input from transmitters, temperature sensors, and a wide array of other monitoring and control instruments such as current and voltage signals, 23 RTD Types, 9 Thermocouple Types, resistance and potentiometer devices, and Direct Millivolt Sources. Features of the SPAinclude 20-bit input resolution, long-term stability with up to 5 years between calibrations, large 5-digit process and status readout, and isolated RFI/EMI protection.

Learn more about the SPA2.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

SIYQ. Currently, I have an application where I need to configure my SIY input to 0-1mA. Is this possible?

A. Yes, the minimum input span possible on the SIY is 1 mA, allowing you to configure it to 0-1 mA.

Not only can you configure the SIY to 0-1 mA, the enhanced configuration software allows you to trim input sensor readings, customize input linearization curves, program output damping, and calibrate other loop instruments. The SIY handles the majority of current/voltage interface applications you are likely to encounter.

Moore Industries’ SIY PC-Programmable Signal Isolator/Converter combines smart digital technology with advanced analog operation to deliver superior reliability, accuracy, and ease of use. To learn more about the SIY visit our website. 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

535 ppQ. When the 535 1/4 DIN Single Loop PID Process Controller loses power with remote setpoint on, it comes back up in local setpoint mode. Is there a way to have the 535 always come back up in remote setpoint mode when power is restored?

A. Yes, the 535 can come back up with remote setpoint. To make the 535 power up using remote setpoint:

In the configurations menu

  1. Go to the SPECIALmenu 
  2. Go to PWR. UP: SP
  3. Select REMOTE

Details are on page 51 (number on the bottom right or page 58 of the PDF) in the user manual. For your convenience, the image is attached at the bottom of this page.

Check out more on the 535 1/4 DIN Single Loop PID Process Controller.  

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

ECTQ. As part of a power distribution process I need a dual signal isolator/converter/splitter that has an input of 0-1mA, outputs of 0-1mA and 4-20mA with 117VAC power input? It needs a DIN housing so it can be mounted in an existing cabinet.

A. Moore Industries has the ECT Signal Isolator, Converter, Repeater, Booster and Splitter and comes in 2-wire (Input-Loop Powered) and 4-wire (Line/ Mains Powered) versions with input 0-1mA, with outputs 0-1mA and 4-20mA, with 117VAC power input in an aluminum DIN rail mounted housing. 

  • When ordering, specify the model number in this format: Unit / Input / Output / Power / Options [Housing] 
  • To order the model discussed use this model number: ECT/0-1MA/0-1MA,4-20MA/117AC [DIN]

Moore Industries also offers optional NIST Traceable Test Reports with recorded test data.

To read more on the ECT or on other products please go to our website

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Q. On a 4-20mA gas detector, while we replace the cell, the output reverts to 3mA. This causes the device receiving the 4-20mA signal to go into a critical alarm condition and can shut down a critical process. What device do you have that will keep the output at no less then 4mA? It would also be convenient to have this instrument provide me with a relay alarm contact output when my input goes to 3mA. It can be 24Vdc or 120Vac. It should be in a DIN housing.

A. Moore Industries CPT PC-Programmable Temperature Transmitter and Signal Isolator/Converter CPT/HLPRG/0-20MA/117AC/-C [DIN] can be used for this application.The selected model allows you to limit the minimum and maximum output, even when you are replacing the cell. The alarm relay option allows you to set an alarm at whatever level below 4mA for maintenance notification. Figure 1 below shows a configuration that would work for your application. A configuration cable is required to utilize the PC programming capability. 

The CPT has a menu selection for upper and lower limits. You can set the low alarm limit there, such as 3.5mA.

Figure 1. CPT PC Configuration

CPTsm

 

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

PPTThe PTT, Potentiometer Transmitter, was in use at a large dam on a branch of the Colorado River as part of a system to deliver water and power via one of the largest public power utilities for consumers and businesses in the southwest since 1984. The facility has many PTTs in use today. 

All of the PTT units had operated flawlessly in service, even after they were sent back for refurbishment due to capacitor wear out (dry out of electrolytic) four years after the calculated 15-year lifespan.

The customer inquired of whether or not we had a site programmable potentiometer transmitter that was line powered that he could start keeping in stock and consider replacing the PTTs over time.  This would alleviate the downtime he has while waiting on PTT refurbishment.

Moore Industries recommended the CPT, PC-Programmable Temperature Transmitter and Signal Isolator/Converter, as a replacement. The 4-wire (line/mains-powered) CPT can be field programmed for various potentiometer input ranges and provides an isolated and linear current or voltage output (any range within 0-20mA or 0-10V) proportional to the input. The signal is ready for direct interface with readout instruments, recorders, PLC, DCS, or PC-based SCADA systems. All operating parameters configure quickly and easily using Intelligent PC Configuration Software downloadable from our website.

Do you want more information? Download the data sheet. Or visit the catalog.

Need to get price or availability or have a technical question?

Send us a message using E-Help.

Page 1 of 8