Bachmann Model TI214 Precision Temperature Measurement Module

Bachmann TI214 Temperature Input Module

The Bachmann TI214 is a high-precision temperature input module. It is designed for industrial measurement and control systems. This module supports multiple sensor types. It connects Pt100 and Pt1000 RTDs and J/K thermocouples. The TI214 delivers high accuracy and reliable data. It is built for demanding automation environments.

Key Features

• Multi-Sensor Support: Works with Pt100, Pt1000 RTDs and Type J, K thermocouples.
• High Measurement Accuracy: 0.1% accuracy for RTDs, 0.15% for thermocouples.
• Wide Temperature Range: Measures from -100°C to +1000°C.
• Advanced Diagnostics: Built-in wire break detection for sensor health monitoring.
• Robust Signal Conditioning: Includes filtering and high interference voltage tolerance.

Technical Specifications

• Manufacturer: Bachmann
• Model: TI214
• Product Type: Temperature Input Module
• Number of Channels: 14 independent temperature inputs
• Supported Sensors: Pt100, Pt1000 (2-wire or 3-wire); Type J, K Thermocouples
• RTD Measurement Range: -100°C to +800°C
• Thermocouple Range: -30°C to +1000°C
• RTD Excitation Current: 2 mA for Pt100, 200 µA for Pt1000
• Base Accuracy: ±0.1% for RTDs; ±0.15% for T/Cs (at +25°C)
• Digital Resolution: 14-bit (effective 16-bit with averaging)
• Least Significant Bit (LSB): 0.055 K (RTD), 0.062 K (Thermocouple)
• Conversion Time: 80 ms (16-fold avg), 320 ms (64-fold avg) - configurable
• Input Filter: 1st-order low-pass, 17 kHz cutoff frequency
• Linearization: Polynomial per IEC 60584-1 for thermocouples
• Interference Voltage Tolerance: -36V to +36V
• Diagnostics: Wire break detection on all channels
• Isolation: Channel-to-channel and channel-to-system isolation
• Power Supply: 24 VDC (via system backplane)
• Operating Temperature: Typically 0°C to +60°C
• Dimensions: Standard Bachmann M1 module size
• Weight: Approx. 0.2 kg

Installation and Configuration

• Insert the module into a compatible Bachmann M1 I/O base unit.
• Connect sensors using the correct 2-wire or 3-wire scheme for RTDs.
• Ensure proper thermocouple polarity and use compensating cable if needed.
• Configure each channel for the correct sensor type via software.
• Set the desired averaging factor (conversion time) based on application needs.
• Enable wire break detection for critical monitoring points.

Typical Applications

• Multi-point temperature monitoring in process industries.
• Machine and equipment thermal protection systems.
• Environmental chamber and HVAC system control.
• Energy generation plants (e.g., monitoring bearing or winding temperatures).

Frequently Asked Questions (FAQ)

Q: Can I mix different sensor types on one TI214 module?

• A: Yes. Each of the 14 channels can be independently configured for either RTD (Pt100/Pt1000) or Thermocouple (Type J/K) input.

Q: What is the benefit of the configurable conversion time?

• A> A longer conversion time with higher averaging (64-fold) provides a more stable, noise-filtered reading for slow processes. A faster time (16-fold) is better for tracking rapid temperature changes.

Q: Does it require cold junction compensation for thermocouples?

• A: Yes. The module performs automatic cold junction compensation using an internal temperature sensor at its terminal block to ensure thermocouple measurement accuracy.