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1794-IF8IH

Allen-Bradley 1794-IF8IH 8-Channel HART Input Module Flex I/O

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  • Manufacturer: Allen-Bradley

  • Product No.: 1794-IF8IH

  • Product Type: Analog Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Tavsif

Allen-Bradley 1794-IF8IH FLEX I/O HART Analog Input Module

The Allen-Bradley 1794-IF8IH is a FLEX I/O HART analog module featuring 8 isolated single-ended inputs. Using Sigma-Delta conversion with 16-bit unipolar and 15-bit bipolar resolution, this module provides reliable analog signal acquisition. Operating on 19.2 to 31.2 V DC, it consumes 4.8 W maximum. Weighing approximately 0.5 kg (1.1 lbs), it measures 3.7 x 3.7 x 2.6 inches and operates from 32°F to 131°F.

Technical Specifications

Parameter Value
Manufacturer Allen-Bradley / Rockwell Automation
Part Number 1794-IF8IH
Series Flex I/O 1794
Inputs 8 (Isolated, single-ended)
Outputs None
Conversion Type Sigma-Delta
Unipolar Resolution 16 bits
Bipolar Resolution 15 bits plus sign
External DC Voltage 19.2 to 31.2 V DC (5% AC ripple)
Flexbus Current 80 mA @ 5 V DC
Power Dissipation 4.8 W max @ 31.2 V DC
Thermal Dissipation 16.4 BTU/hr @ 31.2 V DC
Operating Temperature 32°F to 131°F (0°C to 55°C)
Enclosure Open
Dimensions (W x H x D) 3.7 x 3.7 x 2.6 in (94 x 94 x 66 mm)
Weight Approx. 0.5 kg (1.1 lbs)
UPC 10612598346902

Compatible Terminal Bases

  • 1794-TB3
  • 1794-TB3S

Installation & Field Application Guide

  • Mount the module on a compatible terminal base (1794-TB3 or 1794-TB3S). Ensure secure seating.
  • Use shielded wiring for signal connections. Signal ports are wiring category 2; power ports are wiring category 3.
  • Verify external DC voltage is between 19.2 and 31.2 V DC with less than 5% AC ripple.
  • Field calibration is available if factory calibration does not meet application requirements.

Why Choose the 1794-IF8IH

  • 8 isolated HART analog inputs with Sigma-Delta conversion for high accuracy.
  • 16-bit unipolar and 15-bit bipolar resolution for flexible signal measurement.
  • North American Hazardous Location approval for safe operation in industrial environments.
  • Field calibration capability allows in-situ adjustment without factory return.

Field Engineer FAQs

Q1: What is the difference between isolated and non-isolated inputs on this module?

A1: The 1794-IF8IH provides isolated inputs, meaning each channel is electrically separated from the module's backplane and other channels, reducing ground loop noise and protecting the system from field-side faults.

Q2: Can this module communicate HART data?

A2: Yes, the 1794-IF8IH supports HART communication, allowing access to device diagnostics and configuration parameters from connected HART field instruments.

Q3: What wire size should I use for the 1794-IF8IH?

A3: Wire size depends on the terminal base used. Refer to the terminal base documentation. Use shielded wiring for signal ports (category 2) and appropriate gauge for power ports (category 3).

Inquiries: sale@etowonauto.com

🏷️ Tags: Analog Input Module

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