Application Notes

Intrinsic Safety:

X57 App Note 1: Interposing Relay/Contact Repeater with Ground Return to 24vdc Power Supply

X57 App Note 2: Ground Isolated Interposing Relay/Contact Repeater with 24 vdc Power Supply

X57 App Note 3: Field Contact Status into Annunciators, Sequence of Events Recorders, PLCs and DCSs

X57 App Note 4: Interposing Relay/Contact Repeater with Ground Return to 35 vdc Power Supply

X57 App Note 5:  Field Contact Status into Annunciators, SERs, PLCs and DCSs using up to 35 vdc Power Supply 

X57 App Note 6:  Dual Channel Field Contact Status Repeater/Isolator 

X57 App Note 7: Drive Solenoids, Counters, LEDs, Horns, etc. using 24 vdc Power and I.S. Groudn Return Path

X57 App Note 8: Drive Solenoids, Counters, LEDs, Horns, etc. using IS Ground Return Path to 35 vdc Supply

X57 App Note 9: Drive Solenoids, Counters, LEDs, Horns, etc. using IS Ground Return Path to 24 vdc Supply

X57 App Note 10: Drive Solenoids, Counters, LEDs, Horns, etc. using IS Ground Isolated 35 vdc Power Supply

X57 App Note 11: Drive Solenoids, Counters, LEDs, Horns, etc. using Ground Isolated 24 vdc Power Supply

X57 App Note 12: Drive Solenoids, Counters, LEDs, Horns, etc. using active isolation barrier

X57 App Note 13: Zener Barriers for 2-wire Transmitters using I.S. Ground for Common Power Path

X57 App Note 14: 4-20 mA Loop Zener/Diode Return Barriers

X57 App Note 15: Zener Barrier Current to Voltage Signal converter using barrier's Internal Loop Resistor

X57 App Note 16: Powered Zener Barrier with Current to Current Repeater

X57 App Note 17: Current to Current Isolator/Signal Repeater use with Conventional 2-Wire Transmitters

X57 App Note 18: Current to Current Isolator/Signal Repeater Use with Hart Programmable Transmitters

X57 App Note 19: Universal Current to Current Isolator/Repeater - Output Loop Powered by PLC/DCS

X57 App Note 20: Current to Current Isolator/Signal Repeater for 3-Wire Transmitter with Powered Output

X57 App Note 21: Drive I/P Transducers, Loop Powered Indicators, etc. Using I.S. Ground for Signal Return

X57 App Note 22: Drive I/P Transducers, Loop Powered Indicators, etc. Using Diode Signal Return Barrier

X57 App Note 23: Drive I/P Tranducers, Loop Powered Indicators, etc. with Active Isolation Barrier

X57 App Note 24: Ungrounded Hazardous Area Thermocouples connecting to Safe Area Thermocouple inputs

X57 App Note 25: Thermocouple Signal Converter/transmitter for Grounded or Ungrounded Hazardous Area Thermocouples

X57 App Note 26: Hazardous Area RTD connecting to Safe Area RTD inputs

X57 App Note 27: RTD Signal Converter/Transmitter for Hazardous Area RTDs

X57 App Note 28: Hazardous Area Load Cell or Strain Gage with +/- 6 vdc Excitation

X57 App Note 29: Hazardous Area Load Cell or Strain Gage with + 10 vdc Ground Referenced Excitation

X57 App Note 30: Hazardous Area Load Cell or Strain Gage with +10 vdc Ungrounded Excitation Supply

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