Honeywell | TC-OAH061 | 6-Channel Galvanically Isolated Analog Output Module

Product Description

The TC-OAH061 is a high-precision analog output interface engineered for Honeywell industrial control systems. This module provides six independent current loop channels, each featuring full galvanic isolation to protect control logic from field-side electrical interference. Operating with a standard 4-20 mA signaling range, the unit delivers 13-bit resolution, ensuring granular control for modulating valves, actuators, and variable frequency drives.

Technical Specifications

• Module Identification: TC-OAH061

• Output Type: Analog Current Loop (Source)

• Signal Range: 4 to 20 mA

• Channel Count: 6 Individually Isolated Channels

• Isolation Type: Galvanic (Channel-to-Bus and Channel-to-Channel)

• Digital-to-Analog Resolution: 13 Bits

• Form Factor: PC Board PLC / Add-On Board

• Physical Mass: 0.27 kg (approx. 0.60 lbs)

• Availability: Legacy / Discontinued by Manufacturer

Operational Application

The TC-OAH061 is typically deployed in process automation environments where signal integrity is critical. The internal isolation prevents ground loops and minimizes noise coupling between the field devices and the backplane, making it a reliable choice for long-distance signal transmission in harsh electromagnetic conditions.

Frequently Asked Questions

• How does the 13-bit resolution affect control precision?

  It allows the module to divide the 4-20 mA span into 8,192 discrete steps, providing smooth transitions for sensitive control elements.

• Does this module require external power for the loops?

  Yes, current loop modules generally require an external 24Vdc supply to drive the 4-20 mA signal through high-impedance loads.