6ES7138-7AA00-0AA0

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Analog input modules

• 4-channel analog input module AI 2 WIRE HART EEx i for current measurement in the range 4 to 20 mA, suitable for connection of two-wire transmitters (with/without HART functionality)
  • Resolution 12 bit + sign
  • Max. load of transmitter 750 ?
  • Short-circuit and wire break monitoring
• 4-channel analog input module AI 4 WIRE HART EEx i for current measurement in the range 0/4 to 20 mA, suitable for connection of 4-wire transmitters (with/without HART functionality)
  • Resolution 12 bit + sign
  • Max. load of transmitter 750 ?
  • Wire break monitoring
• 4-channel analog input module AI RTD EEx i for resistance measurement and for temperature measurement per Pt100/Ni100 resistance thermometer
  • Resolution 15 bit + sign
  • 2-wire, 3-wire or 4-wire connection possible
  • Resistance measurements 600 ? absolute and 1 000 ? absolute
  • Wire break monitoring
• 4-channel analog input module AI TC EEx i for thermoelectric EMF measurements and for temperature measurement per thermocouple, type B, E, N, J, K, L, S, R, T, U
  • Resolution 15 bit + sign
  • Internal temperature compensation possible using TC sensor module (included in scope of delivery of module)
  • External temperature compensation by means of a temperature value acquired at an analog module of the same ET 200iSP station
  • Wire break monitoring

Analog output modules

• 4-channel analog output module AO I HART EEx i for output of current signals in the range 0/4 to 20 mA to field devices (with/without HART functionality)
  • Resolution 14 bit
  • Parameterizable substitute value in case of CPU failure
  • Short-circuit and wire break monitoring

Extra functions

Temperature compensation

A TC sensor module for internal temperature compensation is provided with the 4 AI TC module, and is fitted on the corresponding terminals of the associated terminal module.

External temperature compensation is possible via a Pt100 on a 4?AI?RTD module.