Technical Specifications
- Manufacturer: General Electric (GE) / Horner Electric
- Model: HE693THM884M
- Series: GE Fanuc Series 90-30 PLC System
- Channel Count: 8 differential thermocouple input channels
- Supported Thermocouple Types: J, K, T, E, R, S, B, N
- Temperature Measurement Range:
- Type J: -210°C to +760°C
- Type K: -270°C to +1372°C
- Type T: -270°C to +400°C
- Type E: -270°C to +1000°C
- Type R/S: -50°C to +1768°C
- Type B: 0°C to +1800°C
- Type N: -270°C to +1300°C
- Resolution: 0.1°C (high-resolution mode)
- Accuracy: ±0.5°C at 25°C (±1.0°C full range)
- Input Impedance: >20 MΩ per channel
- Common Mode Voltage Range: ±12V
- Common Mode Rejection: >100 dB
- A/D Conversion Type: Integrating (noise rejection)
- Sample Rate: 45 channels/second
- Power Supply: 5 V DC from PLC backplane
- Current Consumption: 100 mA @ 5 VDC
- Dimensions (W×H×D): 65 × 183 × 165 mm (2.56 × 7.2 × 6.5 in)
- Weight: Approximately 0.37 kg (13 oz)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C (-40°F to 185°F)
- Relative Humidity: 5% to 95% (non-condensing)
- Isolation: 2500 V DC (channel-to-backplane)
- Connector: 20-screw terminal block (included)
- LED Indicators: Power, Fault, Channel Status
Key Features
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Multi-Channel High-Precision Temperature Acquisition
- Provides 8 independent differential input channels for simultaneous temperature monitoring across multiple points.
- Supports all standard thermocouple types (J, K, T, E, R, S, B, N) for wide application flexibility.
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Direct Sensor Connection & Simplified Wiring
- Connects thermocouples directly without external transmitters or signal conditioners, reducing system cost and complexity.
- Features a 20-screw terminal block for secure, field-friendly wiring of sensors.
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Advanced Signal Processing & Noise Immunity
- Utilizes integrating A/D conversion with 100 dB common mode rejection to eliminate industrial electrical noise.
- Includes digital filtering (configurable) for stable temperature readings in fluctuating environments.
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Comprehensive Alarm & Diagnostics
- Offers 16 alarm bits (open-circuit and setpoint alarms) per channel for early fault detection.
- Dedicated LED indicators for power, module health, and channel status enable quick on-site troubleshooting.
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Robust Industrial Design
- Delivers 2500 V DC isolation between field sensors and the PLC backplane for electrical safety.
- Withstands wide temperature (0°C to +60°C) and humidity fluctuations for reliable operation in harsh industrial settings.
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Seamless PLC Integration
- Plugs directly into GE Fanuc Series 90-30 PLC racks via the backplane bus.
- Maps temperature data to %AI input registers and alarm status to %I bits for easy programming.
- Configurable via standard GE programming software for thermocouple type, range, and alarm setpoints.
Application Scenarios
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Process Control Industries
- Chemical & Petrochemical Plants: Monitors reactor, distillation column, and pipeline temperatures for process optimization and safety.
- Food & Beverage Processing: Controls oven, freezer, and sterilization temperatures to ensure product quality and compliance.
- Pharmaceutical Manufacturing: Maintains precise temperatures in reactors, incubators, and storage areas for batch consistency.
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Energy & Power Generation
- Thermal Power Plants: Tracks boiler, turbine, and exhaust gas temperatures for efficiency and equipment protection.
- HVAC & Building Automation: Regulates temperatures in large facilities, data centers, and industrial buildings.
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Manufacturing & Industrial Machinery
- Metalworking & Heat Treatment: Monitors furnace, forge, and welding temperatures for quality control.
- Plastics & Rubber Processing: Controls extruder, mold, and curing temperatures for consistent product output.
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Research & Laboratory
- Environmental Chambers: Maintains precise temperatures for material testing and scientific experiments.
- Calibration Laboratories: Provides accurate temperature measurements for sensor and instrument calibration.
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