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Highly Flexible and Versatile Alarm Trips: SPA2

Highly Flexible and Versatile Alarm Trips: SPA2

Something happens—a signal peaks or falls—and you need to know. A limit alarm trip can trigger the response needed to maintain normal, and safe, operations. The Moore Industries SPA2 Programmable Current/Voltage and RTD/Thermocouple Limit Alarm Trips are excellent alarms for your most demanding applications.

Some of the most notable and popular features designed into the SPA2 are its:

  • Ability to accept a signal input from transmitters, temperature sensors and a wide array of other monitoring and control instruments including current and voltage signals, 23 RTD types, 9 thermocouple types, resistance and potentiometer devices and direct millivolt sources.
  • 20-bit input resolution:  Industry-best digital accuracy for both sensor (RTD and thermocouple) and analog (current/voltage) inputs. 
  • Ability to serve as a high/low alarm limit process alarm to monitor temperature, pressure, level, flow, position or status variable and provide emergency shutdown or on/off control if unwanted process conditions occur. It also acts as a rate-of-change alarm, input fault alarm, out-of-range alarm and self-diagnostic alarm.
  • Universal AC/DC power supply which enhances its ability to serve as a universal limit alarm trip option and replace the multitude of single-function alarms that many plants need to stock and use to monitor their processes.
  • Analog output (-AO) option which lets the SPA2 act as a transmitter for input signals to a remote monitoring or control device such as a DCS, PLC, PC or data recorder indicator saving significant installation time and costs when an alarm and transmitter function are needed at the same location.
  • Isolated and RFI/EMI protection delivering superior protection against the effects of ground loops and plant noise. 
  • Flexible programming which can be performed through front panel pushbuttons or our Intelligent PC Configuration Software.

Also, the Current/Voltage (HLPRG) input model of the SPA2 comes with 2-wire transmitter excitation, providing 24Vdc power to a loop powered transmitter, eliminating the cost of specifying and installing an independent instrument power supply.

Take advantage of Moore Industries’ nearly 50 years’ experience engineering, manufacturing and applying highly reliable limit alarms. For information on the SPA2, download the data sheet. Also, learn more about Moore Industries alarm instruments by visiting our Limit Alarm Trips and Switches product page.

You can also download our White Paper: Alarm Trips: The Ups and Downs for an introduction to alarm types and products.

Published: May 26, 2016
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