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E-HELP: Telling the Difference Between a Low Signal and a Lost Signal

E-HELP: Telling the Difference Between a Low Signal and a Lost Signal
Q: I have a question about the ECA-DIN Current and Voltage Alarm with the DH1L1 (Dual, High/Low, Failsafe) output option. The literature for the product says that "the failsafe relays are de-energized in an alarm condition or during power loss to the unit." Is this statement also true if there is a loss of input signal such as a broken wire?
Published: May 20, 2015

E-HELP: Splitting an RTD or Thermocouple Input

E-HELP: Splitting an RTD or Thermocouple Input
Q: We are looking to take an RTD or thermocouple signal input and output it to two 4-20mA outputs. We also could take the same temperature input and output the same signal twice. What are our options?
Published: May 12, 2015

Save Money by Monitoring Peak Demand with the PWT

Save Money by Monitoring Peak Demand with the PWT
Controlling electricity costs is a major factor in the management of a manufacturing plant. It’s not uncommon for electrical utilities to charge a premium rate for power used during “peak” periods. If a manufacturing plant knows when these peak hours are, they can schedule major production for other time periods and save a significant amount of money.
Published: May 5, 2015

E-HELP: Concentrating Temperature Readings with the NCS

E-HELP: Concentrating Temperature Readings with the NCS
Q: I want to transmit temperature readings from 44 different four-wire RTDs over MODBUS using your TMZ PC-Programmable MODBUS Temperature and Signal Transmitter. Can I use the EMM Ethernet/MODBUS Interface Module of the NCS NET Concentrator System® to concentrate the outputs of the TMZ? I would like to have the EMM configured as a MODBUS RTU Master and the TMZs as MODBUS RTU Slaves and then output from the EMM as a MODBUS/TCP to my control system. Can this all be done?
Published: April 21, 2015

E-HELP: The Fault Alarm on the STA

E-HELP: The Fault Alarm on the STA
Q: Could you let me know the specific instances where the Fault Alarm trips on the STA Safety Trip Alarm are used?
Published: April 21, 2015
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