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High Level Analog Input Module Honeywell TC-IAH161

High Level Analog Input Module Honeywell TC-IAH161

Product Description

The TC-IAH161 is a 16-channel High-Level Analog Input (HLAI) module designed for the Honeywell Experion PKS Series C I/O platform. It interfaces with standard industrial analog signals, including 4–20 mA and 1–5 VDC, from field transmitters and...

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SKU: TC-IAH161
Vendor: Honeywell
Category: High Level Analog Input Module
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Product Description

The TC-IAH161 is a 16-channel High-Level Analog Input (HLAI) module designed for the Honeywell Experion PKS Series C I/O platform. It interfaces with standard industrial analog signals, including 4–20 mA and 1–5 VDC, from field transmitters and sensors.

Equipped with a 16-bit sigma-delta A/D converter, the module provides high-precision signal acquisition for the C300 controller. Each channel incorporates advanced filtering to suppress high-frequency noise and 50/60 Hz interference common in industrial power systems.

The TC-IAH161 supports HART pass-through communication, enabling remote configuration and diagnostics of smart transmitters without interrupting the primary analog signal. Its compact vertical Series C design ensures efficient thermal management and high-density cabinet installation.

Technical Specifications

Parameter Specification
Model TC-IAH161
Module Type High-Level Analog Input (HLAI)
Channels 16
Input Range 4–20 mA / 1–5 VDC
A/D Resolution 16-bit Sigma-Delta
Input Impedance 250 Ω (Current Input via IOTA)
Accuracy ±0.1% Full Scale @ 25°C
HART Support Digital Pass-Through
Common Mode Rejection > 70 dB
Update Rate 100 ms (All 16 Channels)
Isolation 1500V AC Channel-to-Logic
Dimensions (W×H×D) 3.5 × 14.0 × 14.5 cm
Weight 0.24 kg

Application

  • Pressure Transmitter Monitoring – 4–20 mA smart transmitters.

  • Flow & Level Measurement – Continuous process variable acquisition.

  • Water & Wastewater Systems – Reliable signal capture in high-noise environments.

  • Oil & Gas / Petrochemical Plants – High-integrity analog loop monitoring.

  • HART Device Integration – Remote transmitter configuration and diagnostics.

FAQ

Does TC-IAH161 provide loop power to transmitters?
Loop power is typically supplied via the associated Series C I/O Termination Assembly (IOTA), which distributes 24VDC to 2-wire field devices.

Can it process 1–5V signals directly?
Yes. The module supports 1–5 VDC inputs directly. For 4–20 mA loops, the 250 Ω precision resistor (on the IOTA) converts current to a 1–5 V signal for processing.