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Honeywell TC-IAH161 High Level Analog Input Module

The Honeywell TC-IAH161, also cataloged as the TC-IAH161 High Level Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within Honeywell Experion PKS control system platforms.

Hardware Specifications

Parameter	Specification
Model	TC-IAH161
Brand	Honeywell
Product Type	High Level Analog Input Module
Origin	USA
Weight	0.2 kg
Dimensions	3.5 x 14.2 x 14.5 cm (estimated shipping size)
Operating Temp	Not specified
Power Consumption	Not specified
Input Channels	16 single-ended
Input Voltage Range	0-5 V, 0-10 V, +/-5 V, +/-10 V
Input Current Range	0-20 mA, 4-20 mA
Resolution	16-bit ADC
Power Supply	24 VDC +/-10% typical
Signal Type	Analog voltage and current input
Module Publish Rate	250 ms

4-20 mA Loop and Channel Isolation Characteristics

The Honeywell TC-IAH161 is designed for high-level analog signal processing in process control applications. The module accepts standard voltage and current input signals, including 4-20 mA transmitter loops and 0-10 V analog outputs.

The module architecture supports direct interfacing with field instruments through analog input channels. Channel-to-channel isolation practices should be considered during field wiring to reduce signal interference between independent measurement circuits.

For current loop applications, the module can process 4-20 mA signals commonly used with industrial transmitters and control instrumentation. Proper shield termination and separation from high-voltage conductors are required to maintain analog signal integrity.

Frequently Asked Questions

Q: What type of analog signals can the TC-IAH161 process?
A: The TC-IAH161 processes voltage inputs of 0-5 V, 0-10 V, +/-5 V, and +/-10 V, as well as current inputs of 0-20 mA and 4-20 mA.

Q: How many input channels are available on the TC-IAH161?
A: The module provides 16 single-ended analog input channels.

Q: What power supply is required for the module?
A: The module operates from a 24 VDC power supply with a typical tolerance of +/-10%.

Field Installation Guidelines

• Install the module in the designated Honeywell control system I/O rack position according to the applicable system hardware configuration.
• Verify that field wiring polarity matches the configured analog input type before applying power.
• Use shielded instrumentation cable for low-level analog signals where required by the installation environment.
• Connect cable shields according to the site grounding practice to minimize electrical noise coupling.
• Separate analog signal wiring from high-current power conductors and switching circuits.
• Confirm terminal connections, module addressing, and controller configuration before commissioning.
• Do not exceed the specified input voltage or current ranges during field operation.

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