GE HE693THM166 16-Channel Thermocouple Input Module

Technical Specifications

• Manufacturer: General Electric (GE) / Horner Electric
• Model: HE693THM166
• Compatible PLC Series: GE Fanuc Series 90-30
• Number of Input Channels: 16 isolated thermocouple inputs
• Supported Thermocouple Types: J, K, N, T, E, R, S, B, C, X
• Temperature Resolution: 0.5°C (0.5°F configurable)
• Measurement Accuracy: ±0.5°C (for J/K/N/T types); ±0.1% full-scale
• Input Impedance: 20 MΩ
• A/D Conversion Type: Integrating
• Conversion Rate: 40 channels per second
• Power Supply: 5 V DC from PLC backplane
• Current Consumption: 100 mA at 5 V DC
• Overload Protection: Up to 35 V (transient tolerance)
• Terminal Block: 32-position high-density removable terminal block
• Dimensions (W×H×D): 76 × 100 × 14 mm (3.0 × 3.9 × 0.55 in)
• Weight: Approximately 0.3 kg (9.6 oz)
• Operating Temperature: -20°C to +70°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% (non-condensing)
• Isolation: 2500 V DC (channel-to-backplane)
• LED Indicators: Power, Run, Fault

Key Features

1. High-Density 16-Channel Design
   • Integrates 16 independent thermocouple inputs into a single compact module, reducing rack space and hardware costs.
   • Ideal for multi-point temperature monitoring in large systems.
2. Multi-Type Thermocouple Compatibility
   • Supports 10 common thermocouple types (J, K, N, T, E, R, S, B, C, X), covering low to extreme high-temperature ranges (-200°C to +1800°C).
   • Eliminates the need for different modules for different sensors.
3. Precision Temperature Measurement
   • Delivers 0.5°C resolution and ±0.5°C accuracy for standard thermocouple types, ensuring tight process control.
   • Reports data to the PLC’s %AI register in 0.5°C or 0.5°F increments, user-configurable.
4. Built-In Open Circuit Detection
   • Automatically detects broken or disconnected thermocouple wires.
   • Triggers a fault flag in the PLC’s %I register and sets the corresponding %AI value to maximum, enabling immediate alarm and maintenance action.
5. Robust Electrical Protection & Noise Immunity
   • Provides 2500 V DC isolation between field sensors and the PLC backplane, preventing electrical damage from ground loops or transients.
   • High 20 MΩ input impedance minimizes sensor loading errors.
6. Seamless PLC Integration & Easy Configuration
   • Plugs directly into any GE Fanuc Series 90-30 PLC rack slot, no adapters required.
   • Configured via standard GE programming software; no complex wiring or external setup needed.

Application Scenarios

• Industrial Furnace & Oven Control
  • Metal Heat Treatment: Monitors and controls temperatures in annealing, quenching, and tempering furnaces.
  • Ceramic & Glass Manufacturing: Tracks high temperatures in kilns and melting furnaces using R/S/B-type thermocouples.
• Food & Beverage Processing
  • Baking & Drying Ovens: Ensures consistent product quality via precise multi-point temperature monitoring.
  • Sterilization & Pasteurization: Verifies critical temperature thresholds for food safety compliance.
• Chemical & Petrochemical Plants
  • Reactor & Distillation Column Monitoring: Measures process temperatures at multiple stages for reaction control and safety.
  • Heat Exchangers: Optimizes energy efficiency by monitoring inlet/outlet temperatures.
• Plastics & Injection Molding
  • Mold & Barrel Temperature Control: Maintains precise temperatures for molten plastic and tooling, ensuring part quality.
• Power Generation
  • Boiler & Combustion Monitoring: Tracks flue gas and steam temperatures in thermal power plants.
  • Waste-to-Energy Plants: Monitors incinerator and exhaust temperatures for emissions control.