Allen-Bradley 1797-IE8H hart analog module

The 1797-IE8H is a hart analog module that belongs to the 1797 series of analog inputs manufactured and designed by Allen-Bradley. The Allen-Bradley 1797-IE8H hart analog module features 8 inputs and a resolution of 16 bits. It has an accuracy of 0.1% at a specific temperature of 20 degrees Celsius. It has a step response time of 4 milliseconds and 8 red fault indicators with a green power indicator. The Allen-Bradley 1797-IE8H hart analog module has a power dissipation of 5.2 Watts and a thermal dissipation of 5.2 Watts. The recommended environmental conditions for this module are an operational temperature of -20 to 70 degrees Celsius and a relative humidity of 5 to 95%. It is important to maintain these conditions in order to extend the life of the module.

Technical specifications for 1797-IE8H

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1797-IE8H

Product TypeFLEX Ex HART I/O Module

Inputs8

Input TypeSingle-ended Non-isolated

Resolution16 bits

Data FormatConfigurable

Functional Data Range15V at 22mA

Module Field-side Power Consumption7.5 W

Power Dissipation5.2 W

Thermal Dissipation17.75 BTU/hour

Step Response4 ms

Weight200 g

The Allen-Bradley 1797-IE8H hart analog module cannot be in contact with electrostatic discharges since it is a very sensitive device. Technicians should be careful when installing it and once it is installed there should be a signal with this premise. The Allen-Bradley 1797-IE8H hart analog module can provide for different kinds of alarms and once connected to a ControlNet network, it can share signals with a PLC processor. This module is shipped already calibrated, but some applications might require periodic calibrations. This can be done by using a FLEX Ex I/O system. Some errors might require the same calibration process in order to be cleared. Some tools needed for calibration are a precision current source, a precision current meter, and an industrial terminal and interconnect cable.