The Johnson Controls GM202-MH00 A2L Refrigeration Sensor detects refrigerant leaks including R32, R454A, R454B, R454C, and R455A. It uses Modbus communication for efficient monitoring and features a Modbus RTU RS485 interface with a configurable client address. The sensor is designed to account for temperature and humidity fluctuations, ensuring accurate readings and fault detection if the sensor goes out of range.
A2L Refrigeration Sensor for R454B refrigerant detection
Utilizes RS485 Modbus output for communication
Includes a 2 feet cable with a male connector for easy installation
Product Highlights
This sensor is crucial for HVAC applications, providing reliable leak detection for standard refrigerants used in modern air conditioning systems.
Product Information
Standard Information
MPN: GM202-MH00
Condition: New
Technical Specifications
Product Type
Refrigerant leak detection sensor
Supply Power
24 VAC/DC
Current Consumption
40 mA maximum
Detection Threshold Limit Value Accuracy
±3% LFL within the range of 7% to 20% LFL
Sampling Rate
5 Hz
Temperature Compensation
Yes
Humidity Compensation
Yes
Fault Detection
Yes, if the sensor is out of range
Warm Up Time
Less than 5 seconds
Operating Temperature Range
-40°F to 221°F (-40°C to 105°C)
Operating Humidity Range
5% to 95% RH, non-condensing
Operating Pressure Range
70 kPa to 120 kPa
Storage Temperature Range
-40°F to 221°F (-40°C to 105°C)
Short Term Temperature Exposure
221°F (105°C) for 30 minutes
Enclosure Rating
IP 54 (EN 60529)
Housing Material
33% glass-reinforced PPA resin, UL 94 V0 rated
Cable Material
600 V, 22 AWG, PVC, UV C tolerant
Cable Length
6 feet (1.82 meters)
Lifetime
15 years
Dimensions (H x W x D)
2.80 inches x 3.11 inches x 0.71 inches (71 mm x 79 mm x 18 mm)