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AO-2 Analog Current Output - 4 Channel

Features:

The analog current output - 4 channel module for the Series II Remote Terminal Unit provides four output channels, each capable of converting 12 bits of binary (digital) data to an analog output.

This module provides two output ranges. The default range is 4 to 20 mA with user data scaled so that a count of 0 corresponds to 4mA and a count of 32760 corresponds to 20 mA with each 1000 counts representing 0.5 µA.

A range link (on the rear of the module) selects either 4-20mA or 0-20mA for all four channels. The default condition is 4-20mA with the link on. The module provides a full 12 bits of resolution in either range.

 

  • 4 Analog Current Outputs
  • 12-Bit Resolution
  • 0-20 or 4-20mA Outputs
  • 3kV Field to Logic Isolation
  • Channel to Channel Isolation
  • AO-2-1 (Analog Output - 4 channel, 12 bit resolution)

Product specifications:

General
   
Output Current Range 4 to 20mA and 0 to 20mA
Calibration Factory calibrated to 5µA per count
Supply Voltage (nominal) +5V and +12VDC backplane
Update Rate 250 msec (all channels) Determined by I/O scan time, and is application dependent
Resolution 12 bit (no sign bit)
Absolute Accuracy (0 to 20 mA) +/- 10µA at 25 DegC
User Load 0 to 850 ohms
Output Load Capacitance 2000 pF
Output Load Inductance 1H
Isolation 3000 Volts RMS between field and logic
1500 Volts RMS between channels
   
Environmental
   
Operating Temperature -20C to 70C / -4F to 158F
Storage Temperature -40C to 85C / -40F to 185F
Operating Humidity 5 to 98% RH non-condensing

 

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