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CJ1W-TC102

Omron CJ1W-TC102 Thermocouple Input Unit 4-Channel

SKU: CJ1W-TC102

USD 155.00

Omron CJ1W-TC102 is a 4-channel thermocouple input unit for CJ series PLCs, with cold junction compensation for temperature measurement.

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Product Overview

The Omron CJ1W-TC102 is a specialized temperature input module for CJ1 series PLCs, designed for precise temperature monitoring in industrial process applications. This module supports 4 channels of thermocouple input, accepting inputs from common thermocouple types including K, J, T, E, and N, providing flexibility for various temperature sensing requirements. The module features high-resolution analog-to-digital conversion, delivering temperature accuracy suitable for demanding process control applications. Each channel can be configured independently, allowing connection of different thermocouple types within the same module for maximum system flexibility. The CJ1W-TC102 performs automatic cold junction compensation, ensuring accurate measurements without external reference junctions. Digital filtering helps smooth noisy temperature signals, improving measurement stability for control system performance. The module connects to thermocouples using dedicated terminal connections, providing secure and organized wiring. Built-in open-circuit detection alerts the PLC when a thermocouple is disconnected or failed, preventing erroneous temperature readings. The CJ1W-TC102 communicates temperature data directly to the CJ1 CPU as digital values, eliminating the need for external signal converters. Applications include temperature monitoring in furnaces, ovens, process tanks, HVAC systems, food processing equipment, and any application requiring temperature data for control or logging.

  • SKU: CJ1W-TC102
  • Series: CJ1W
  • I/O: 4 I/O

Best-Fit Applications

  • Furnace temperature monitoring
  • Process tank temperature control
  • HVAC system monitoring
  • Food processing equipment
  • Oven temperature control
  • Environmental monitoring
  • Industrial furnace control
  • Chemical process temperature

Buying Checklist

  • Supports multiple thermocouple types
  • High measurement accuracy
  • Flexible channel configuration
  • Built-in open-circuit detection
  • Digital filtering for stability
  • Simplifies temperature I/O
  • Proven Omron quality
  • Easy wiring and setup

Technical Specifications

Model CJ1W-TC102
Series CJ1W
Type Thermocouple Input Unit
Input Channels 4 channels
Input Types K, J, T, E, L, U, N, R, S, B, PLII
Temperature Range -200 to +1800°C (depends on TC type)
Resolution 0.1°C or 0.1°F
Accuracy ±0.3% full scale ±1 digit
Conversion Time 250ms per channel
Cold Junction Compensation Automatic (internal)
Isolation Channel-to-channel isolated
Connection Removable terminal block
Current Consumption 150mA at 5VDC
Operating Temperature 0 to +55°C

FAQ for CJ1W-TC102

What's the difference between TC001, TC002, and TC102?
TC001: 1 channel. TC002: 2 channels. TC102: 4 channels. Same electrical specifications. Choose based on number of temperature points needed.
Can I mix different thermocouple types?
Yes, each channel independently configurable for different TC types (K, J, T, etc.). Configure in CX-Programmer. Unit automatically applies correct scaling and compensation.
What wire should I use for thermocouple connection?
Use thermocouple extension wire (same type as sensor) or copper wire for short runs. Keep wire away from noise sources. Use terminal block for secure connection.
How accurate is this temperature measurement?
±0.3% of full scale ±1 digit. For K-type (0-1000°C range): approximately ±3°C accuracy. For higher accuracy, consider platinum resistance (Pt100) input units.

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