Allen-Bradley 1794-IF8IH Analog Input Module - HART Isolated

Product Overview

The 1794-IF8IH is an Allen-Bradley Flex I/O analog module. It uses HART communication for smart device integration. This 1794-IF8IH module has 8 isolated inputs. The inputs are single-ended. It works with 1794-TB3 and 1794-TB3S terminal bases. The module uses Sigma-Delta conversion. It handles unipolar and bipolar resolutions. Unipolar resolution is 16 bits. Bipolar resolution is 15 bits plus sign. The module comes factory calibrated. Field calibration is also possible.

Application Scenarios

This module suits hazardous industrial environments. It holds North American Hazardous Location Approval. Use it for process control and monitoring. The isolated inputs protect against ground loops. HART protocol allows two-way communication. You can use it in oil and gas, chemical, and power plants. It works in temperature ranges from 32 to 131 degrees Fahrenheit.

Technical Specifications

Inputs and Outputs

Inputs: 8 single-ended, isolated. There are no outputs. The conversion type is Sigma-Delta. The module supports unipolar and bipolar signals.

Power and Environment

External DC voltage range: 19.2 to 31.2 Volts DC with 5% AC ripple. Flexbus current: 80 mA at 5 Volts DC. Maximum power dissipation: 4.8 Watts at 31.2 Volts DC. Maximum thermal dissipation: 16.4 BTU per hour at 31.2 Volts DC. Operating temperature: 32 to 131 degrees Fahrenheit. Enclosure type: Open.

Dimensions and Weight

Dimensions: 3.7 x 3.7 x 2.6 inches. Weight not specified.

Installation & Maintenance Guide

Mount the 1794-IF8IH on a compatible terminal base. Use shielded wire for connections. Signal ports are wiring category 2. Power ports are wiring category 3. The module is factory calibrated. You can perform field calibration if needed. No special tools required.

Packing List

1 x Allen-Bradley 1794-IF8IH module. Terminal base sold separately. Includes documentation. We ship via FedEx, UPS, or DHL.