T8431C Trusted TMR 24Vdc Analogue Input Module, China T8431C Trusted TMR 24Vdc Analogue Input Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	ICS TRIPLEX
Model Number:	T8431C
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Part Number	T8431C
Part Name	Trusted TMR 24Vdc Analogue Input Module
Dimensions	26.6 × 3.1 × 30.3 cm
Weight	1.149 kg
System Supply Voltage Range	20 to 32 Vdc
Number of Input Channels	40 channels
User Defined Thresholds	4-off
Input Current Range	0 to 22 mA
Input Voltage Range	0 to 6 Vdc
Sample Update Time	0.5 ms
Resolution	3.9 µA (1/256 mA)
Safety Accuracy	±1% of full scale
Calibration Accuracy	0.03%
Recommended Calibration Interval	2 years
Circuit Type	Fault tolerant, fully triplicated with optional line monitoring
Fusing	None (external if required)
Intrinsic Safety	External barrier required
Field Common Isolation (Sustained Working)	±250 Vdc
Field Common Isolation (Maximum Withstanding)	±2.5 kVdc
Channel-to-Channel Crosstalk	-40 to -60 dB
Power Consumption	15 to 18 W
Sequence of Events Resolution	1 ms
Time Stamp Accuracy	±0.5 ms
Self-Test Interval	2 minutes
Operating Temperature	-5°C to +60°C (23°F to +140°F)
Non-operating Temperature	-25°C to +70°C (-13°F to +158°F)
Temperature Change Rate	0.5°C/min
Operating Humidity	10–95% RH (non-condensing)

Description

T8431C Trusted TMR 24Vdc Analogue Input Module is a high-reliability industrial input solution designed for safety-critical automation and process control systems. It is engineered to provide stable, accurate, and fault-tolerant analogue signal acquisition from field devices in demanding industrial environments.

Applications

Petrochemical Refineries: Used in SIS cabinets for 4–20 mA signal acquisition via safety barriers.

Thermal Power Plants: Applied in FSSS and turbine systems for real-time thermal monitoring.

Coal Gasification Plants: Used in interlock systems for analogue threshold control and safety protection.

Offshore Platforms: Applied in control systems with strong isolation against lightning and surge.

Steel Plants: Used in blast furnace monitoring under high-temperature conditions.

Features

40 Triple Modular Redundant (TMR) input channels per module.

Comprehensive, automatic diagnostics and self-test.

Selectable line monitoring per channel to detect open circuit and short circuit field wiring faults.

2500Vdc opto/galvanic isolation barrier.

On-board Sequence of Events (SOE) reporting with 1ms resolution.

Module can be hot-replaced on-line using dedicated Companion (adjacent) Slot

Installation

To install the Module:

1. Ensure that the field cable assembly is installed and correctly located.

2. If I/O Module keys are used, verify that all keys are installed in the correct positions and properly seated in their slots.

3. Release the ejector tabs on the Module using the release key. Ensure that the ejector tabs are fully open.

4. Holding the ejectors, carefully insert the Module into the intended slot.

5. Push the Module fully home by pressing on the top and bottom of the Module fascia.

6. Close the Module ejectors, ensuring that they click into their locked position.

FAQ

Q1: Can T8431C be used in a generic PLC rack?
A: No. It is dedicated to Trusted triple-redundant systems and must be installed in compatible chassis I/O slots.

Q2: Does T8431C support 4–20 mA inputs?
A: Yes. It supports 0–22 mA, fully covering 4–20 mA signals with ±1% accuracy.

Q3: Will a short circuit damage T8431C?
A: It has no internal fuses, so external micro-fuses are required to protect the 3.9 µA circuitry.

Q4: Can T8431C operate at 55°C?
A: Yes. It supports up to +60°C with 15–18 W low power design under proper cooling.

Q5: What if T8431C is not calibrated for 3 years?
A: It keeps running with self-checking every 2 minutes, but accuracy drift may increase beyond the 2-year recommendation.