Honeywell 51202921-200 Analog Input Module TDC2000 Series

The Honeywell 51202921-200 is a four-channel analog input module designed for precise measurement in TDC2000 distributed control systems. Its fail-safe architecture ensures reliable operation under harsh industrial conditions.

This module integrates seamlessly with Honeywell TDC2000 systems, providing high-resolution signal acquisition for temperature, pressure, flow, and level monitoring applications.

Key Features

Fail-safe design with redundant input stages and real-time microcontroller monitoring.
Four analog input channels supporting a 0–2 V range with 12-bit resolution.
High input impedance enables connection to high-impedance sensors like RTDs and thermocouples.
Parallel connection capability allows expansion to eight channels by linking two modules.
Comprehensive diagnostics including input range checking, broken wire detection, and sensor short detection.
Compatible with Honeywell TDC2000 systems for reliable process control.

Technical Specifications

Parameter	Specification
Manufacturer	Honeywell
Model Number	51202921-200
Series	TDC2000
Input Channels	4 analog
Input Range	0–2 V
Input Impedance	10 MΩ
Resolution	12 bits
Accuracy	±0.1% FS
Conversion Time	1 ms
Supply Voltage	24 V DC
Operating Temperature	-40°C to 85°C
Storage Temperature	-40°C to 85°C
Isolation	Channel-to-channel isolation

Applications

Process Control: Monitors temperature, pressure, and flow rate in industrial systems.
Manufacturing: Tracks equipment performance and ensures product quality.
Power Generation: Controls and monitors critical parameters in power plants.
Chemical Industry: Measures tank levels and reactor conditions accurately.