Description
Product Overview
- ICS Triplex T8431 is a 40-channel Analog Input TMR module.
- It delivers fault-tolerant analog measurements for safety-critical systems.
- This module works with the Trusted TMR System.
- Use it for precise voltage or current monitoring in hazardous areas.
Key Features
- 40 input channels with full Triple Modular Redundancy (TMR)
- User defined thresholds (4-off) for flexible fault detection
- Fast sample update: 0.5 ms
- High resolution: 3.9 µA (1/256 mA)
- Event time-stamp accuracy: ±0.5 ms
- Field common isolation: ±250V dc working, ±2.5kV dc withstand
- Self-test interval: every 2 minutes
- Recommended calibration check interval: 2 years
Technical Specifications
- Model: T8431
- Manufacturer: ICS Triplex
- Series: Trusted TMR System
- Type: Analog Input TMR 40 channel
- Certification: Ordinary / HazLoc / ATEX / IECEx
- Supply Ratings: 20 – 32 Vdc, 20 W
- Input Voltage Range: 0 – 6 Vdc
- Input Current Range: 0 – 22 mA
- Safety Accuracy: +/- 1% of full scale
- Calibration Accuracy: 0.03%
- Circuit Type: Fault tolerant, fully triplicated with optional line monitoring
- Power Consumption: 15 – 18 W
- Operating Temperature: -5°C to 60°C (23°F to 140°F)
- Operating Humidity: 10 – 95% RH non-condensing
- Dimensions (H x W x D): 266mm x 31mm x 303mm (10.5 x 1.2 x 12 inches)
- Weight: 1.149 kg (2.5 lbs)
- Real Time Clock Resolution: 100 µSec
Installation & Compatibility
- Fits directly into Trusted TMR System chassis.
- External fusing recommended – no internal fuses.
- Use external intrinsic safety barrier if needed.
- Two-year calibration interval lowers maintenance costs.
5 Professional FAQs
- What does “fully triplicated” mean for input channels?
- Each analog input has three parallel measurement circuits. The system votes to detect faults.
- Can I use T8431 without external barriers in hazardous areas?
- No. For HazLoc/ATEX/IECEx, you must add external intrinsic safety barriers.
- How do I check if a channel is drifting?
- Run a calibration check every 2 years. Compare against a known 0-22mA source.
- The module shows discrepancy fault at default threshold. What now?
- Default threshold is for 0x70nn slice errors. You can adjust 4 user thresholds.
- What shipping methods do you offer?
- We ship via FedEx, UPS, or DHL worldwide. All orders include tracking.
Buying Guide & Warranty
- Warranty: 12 months from shipment date against defects.
- Genuine ICS Triplex T8431 – avoid clones or refurbished units.
- Confirm your system voltage: 20-32 Vdc only.
- Need fast event logging? This module gives 1ms event resolution.
- For high channel count, T8431 saves space (only 31mm wide).
- Contact support for RMA: +86 158 8020 0923 (WhatsApp)
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