GE RANGE-80 TO 20°C

Technical Specifications

• Manufacturer: GE Multilin (GE Vernova)
• Product Series: HygroPro Dew Point Transmitters
• Measurement Range: -80°C to 20°C (dew/frost point)
• Accuracy: ±1.0°C (range -80°C to -66°C); ±0.5°C (range -65°C to 20°C)
• Repeatability: ±0.2°C
• Response Time: 5 seconds (63% of step change)
• Sensor Type: Polymer-based moisture sensor with long-term stability
• Output Signal: 4-20 mA (linear with dew point temperature)
• Power Supply: 7-28 VDC (loop-powered)
• Operating Temperature: -40°C to 60°C (ambient)
• Storage Temperature: -40°C to 85°C
• Pressure Range: 0-345 bar (5000 psi)
• Enclosure Rating: Type 4X/IP67 (dust-tight, water-resistant)
• Electrical Connections: 3-wire (power, signal, ground)
• Certifications: ATEX, CSA, IECEx (intrinsically safe for hazardous areas)
• Weight: 0.5 kg (1.1 lbs)
• Dimensions: 120 mm × 60 mm × 40 mm (4.72″ × 2.36″ × 1.57″)

Functional Features

• Precision Measurement: Delivers accurate dew point readings with ±0.5°C to ±1.0°C accuracy across the -80°C to 20°C range for reliable moisture monitoring.
• Rapid Response: 5-second response time captures fast moisture changes for real-time process control.
• Loop-Powered Operation: 7-28 VDC loop power minimizes wiring complexity and enables remote installation.
• Robust Enclosure: Type 4X/IP67-rated housing protects against dust, water, and corrosion for use in harsh industrial and outdoor environments.
• Intrinsically Safe Design: Certified for hazardous areas (ATEX, CSA, IECEx) to ensure safe operation in explosive atmospheres.
• Stable Performance: Polymer sensor technology provides long-term stability with minimal drift, reducing calibration frequency.
• Linear Output: 4-20 mA signal simplifies integration with PLCs, SCADA systems, and data loggers.
• Low Maintenance: No moving parts and minimal calibration requirements lower operational costs.
• Wide Pressure Range: Operates from vacuum to 345 bar (5000 psi) for diverse industrial applications.
• Versatile Mounting: Compatible with various process connections (NPT, G, metric) for easy installation in gas lines.

Application Scenarios

• Natural Gas Processing: Monitoring moisture in pipeline gas to prevent hydrate formation and corrosion; compliance with pipeline specifications (e.g., < 7 lb/MMSCF).
• Petrochemical Industry: Moisture measurement in ethylene, propylene, and other process gases to protect catalysts and ensure product quality.
• Power Generation: Monitoring moisture in turbine inlet air, generator cooling systems, and hydrogen cooling circuits to prevent equipment damage.
• Semiconductor Manufacturing: Controlling moisture in ultra-pure gases (e.g., nitrogen, argon) to maintain wafer yield and process integrity.
• Pharmaceutical Production: Moisture monitoring in sterile gas lines and freeze-drying processes to ensure product stability and regulatory compliance.
• Food & Beverage Industry: Monitoring moisture in CO2 for carbonation systems and packaging gases to preserve product freshness.
• Aerospace & Defense: Moisture measurement in aircraft fuel systems, cabin air, and avionics cooling to prevent icing and corrosion.
• Metals Processing: Monitoring moisture in furnace atmospheres (e.g., annealing, brazing) to control surface oxidation and improve product quality.
• Environmental Monitoring: Measuring moisture in stack gases and ambient air for emissions reporting and pollution control.

Compatibility

• Controllers: GE PACSystems RX3i/RX7i, Siemens S7, Rockwell ControlLogix, Schneider Modicon
• Communication Protocols: 4-20 mA analog (compatible with any PLC/SCADA with analog input modules)
• Power Supply: 7-28 VDC loop power (supplied by control system or external power supply)
• Process Connections: 1/4″ NPT, 1/2″ NPT, G1/4, G1/2, metric threads (customizable)
• Calibration Equipment: GE Calibration Kit for dew point transmitters; NIST-traceable calibration standards

Installation Notes

1. Mounting: Install in a vertical or horizontal position with the sensor tip facing downward to prevent condensation buildup; ensure proper alignment with process gas flow.
2. Wiring: Use shielded twisted-pair cables for power and signal lines to minimize electromagnetic interference; connect shield to ground at the control system end.
3. Power Connection: Apply 7-28 VDC loop power; ensure correct polarity to avoid damage to the transmitter.
4. Calibration: Factory-calibrated to NIST standards; annual recalibration recommended for critical applications.
5. Process Integration: Install a sampling system with a filter and pressure regulator for dirty or high-pressure gases to protect the sensor.
6. Environmental Protection: Use the Type 4X/IP67 enclosure in outdoor or wet environments; avoid direct exposure to chemicals or extreme temperatures beyond operating limits.
7. Testing: Verify output signal with a calibrated multimeter; check response time with a known moisture source to ensure proper operation.

Key Advantages

• High Accuracy: ±0.5°C to ±1.0°C accuracy ensures reliable moisture monitoring for critical processes.
• Rapid Response: 5-second response time enables real-time process control and quick detection of moisture spikes.
• Rugged Design: Type 4X/IP67 enclosure and intrinsically safe certification make it suitable for harsh and hazardous environments.
• Loop-Powered: Simplifies wiring and reduces installation costs; compatible with existing control systems.
• Long-Term Stability: Polymer sensor technology minimizes drift, reducing maintenance and calibration frequency.
• Versatile Application: Wide pressure and temperature ranges support diverse industrial processes.
• Easy Integration: 4-20 mA output seamlessly connects to PLCs, SCADA systems, and data loggers.
• Cost-Effective: Low maintenance and long sensor life lower total cost of ownership.