HART Analog Input channel specifications

Table: HART Analog Input channel specifications
Item Specification
Number of channels Eight
Channel to channel isolation None
2-wire field circuit current limit per channel 30 mA maximum
Voltage to transmitter @ 20mA 15.0 Volts minimum
Nominal signal range 4 to 20 mA
Full scale signal range 1 to 22 mA
Line fault detection
  • Short circuit: > 22.25 mA
  • Open circuit: < 0.75 mA
Resolution 15 bits
Repeatability 0.05% of span
Accuracy over temperature range
  • 0 to 60°C: 0.1% of span
  • -20 to 70°C: 0.15% of span
Accuracy over EMC Conditions 1.0% of span
Calibration Factory software calibration. No further calibration required.
Communications support
  • HART pass-through request/response
  • HART variable report
  • Field device status report

Refer to document 12P3292, DeltaV Type KJ7000 Series Zone 1 I/O System Installation Instructions for the AI channels' entity parameters. This document can be found on the DeltaV Documentation Library DVD. This document is in Portable Document Format (.PDF). A letter (A-Z) is appended to the filename and is incremented for each release of the document.

Wiring diagram and terminations

Figure: Wiring diagram and terminations for HART Analog Input channels