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T: +86-18156545248
E: info@wnksensor.com
E: info@wnksensor.com
5F, Bldg. 2A, Mingzhu Industrial Park Hefei 230000, China
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WNK Refrigerant Pressure Sensor Transducer Transmitter 0.5-4.5V for HVAC System
| Quantity: | |
|---|---|
WNK85ma
WNK
| Applicable media | Liquid, gas, seam |
| Pressure range | 3MPa-6MPa |
| Pressure measurement | Gauge pressure, sealing pressure |
| Output | 0.5-4.5V |
| Power Supply | 5VDC |
| Accuracy(lineraity, hysteresis, repeatability) | 1%FS |
| Working temperature | -20~70°C |
| Storage temperature | -40~85°C |
| Temp drift(zero) | ±0.15%FS(-20~70°C) |
| Temp drift(full range) | ±0.15%FS(-20~85C) |
| Electrical connection | Pakard |
| Mechanical connection | 7/16-UNF (female) |
| Housing material | Brass |
The WNK85ma is a high-accuracy refrigerant sensor designed for HVAC systems (central air conditioning, commercial refrigeration), with a 0.5-4.5V output and 5VDC power supply optimized for HVAC control panels. Unlike general-purpose sensors, it’s calibrated to measure refrigerant pressure (e.g., R410A, R32) and withstand the temperature swings of HVAC operations—delivering 1% F.S. accuracy critical for energy efficiency and system longevity.
HVAC systems lose up to 20% efficiency due to incorrect refrigerant pressure. The WNK85ma solves this and other HVAC challenges:
Large commercial HVAC systems (e.g., in malls, offices) use refrigerant to cool spaces. The WNK85ma tracks high-side and low-side refrigerant pressure, sending data to the HVAC controller to adjust fan speed and compressor output—maintaining set temperatures while cutting energy use.
Grocery store freezers or restaurant walk-ins require precise refrigerant pressure to avoid temperature spikes (which spoil food). The WNK85ma operates at -20~70°C (working temp) and has ±0.15% F.S. temperature drift, ensuring accurate readings even as freezer temperatures fluctuate.
HVAC regulations (e.g., ASHRAE 90.1) mandate refrigerant leak detection. The WNK85ma’s sensitivity detects small pressure drops (indicating leaks) and triggers alerts, helping facilities meet compliance and avoid fines for refrigerant emissions.
• Refrigerant Optimization: Calibrated for common HVAC refrigerants (R410A, R32, R134a), eliminating the need for manual recalibration.
• Brass Housing: Brass resists refrigerant corrosion (unlike plastic) and provides better heat dissipation, extending sensor life by 50% vs. plastic-housed alternatives.
• 7/16-UNF Female Thread: The industry standard for HVAC refrigerant lines, ensuring a tight seal with minimal leak risk.
• Integration Support: Our team helps connect the WNK85ma to HVAC BAS (Building Automation Systems) like Siemens or Johnson Controls, enabling remote monitoring.
• Quality Assurance: ISO9001:2015 certified, with each unit tested for refrigerant compatibility and pressure accuracy.
• Warranty & Service: 12-month warranty; 24-hour technical support for troubleshooting (e.g., resolving output signal noise in HVAC panels).
• OEM/ODM: Customize output signals (e.g., 0-10V) or housing materials (e.g., 316 stainless steel for coastal HVAC systems) to fit your needs.
| Applicable media | Liquid, gas, seam |
| Pressure range | 3MPa-6MPa |
| Pressure measurement | Gauge pressure, sealing pressure |
| Output | 0.5-4.5V |
| Power Supply | 5VDC |
| Accuracy(lineraity, hysteresis, repeatability) | 1%FS |
| Working temperature | -20~70°C |
| Storage temperature | -40~85°C |
| Temp drift(zero) | ±0.15%FS(-20~70°C) |
| Temp drift(full range) | ±0.15%FS(-20~85C) |
| Electrical connection | Pakard |
| Mechanical connection | 7/16-UNF (female) |
| Housing material | Brass |
The WNK85ma is a high-accuracy refrigerant sensor designed for HVAC systems (central air conditioning, commercial refrigeration), with a 0.5-4.5V output and 5VDC power supply optimized for HVAC control panels. Unlike general-purpose sensors, it’s calibrated to measure refrigerant pressure (e.g., R410A, R32) and withstand the temperature swings of HVAC operations—delivering 1% F.S. accuracy critical for energy efficiency and system longevity.
HVAC systems lose up to 20% efficiency due to incorrect refrigerant pressure. The WNK85ma solves this and other HVAC challenges:
Large commercial HVAC systems (e.g., in malls, offices) use refrigerant to cool spaces. The WNK85ma tracks high-side and low-side refrigerant pressure, sending data to the HVAC controller to adjust fan speed and compressor output—maintaining set temperatures while cutting energy use.
Grocery store freezers or restaurant walk-ins require precise refrigerant pressure to avoid temperature spikes (which spoil food). The WNK85ma operates at -20~70°C (working temp) and has ±0.15% F.S. temperature drift, ensuring accurate readings even as freezer temperatures fluctuate.
HVAC regulations (e.g., ASHRAE 90.1) mandate refrigerant leak detection. The WNK85ma’s sensitivity detects small pressure drops (indicating leaks) and triggers alerts, helping facilities meet compliance and avoid fines for refrigerant emissions.
• Refrigerant Optimization: Calibrated for common HVAC refrigerants (R410A, R32, R134a), eliminating the need for manual recalibration.
• Brass Housing: Brass resists refrigerant corrosion (unlike plastic) and provides better heat dissipation, extending sensor life by 50% vs. plastic-housed alternatives.
• 7/16-UNF Female Thread: The industry standard for HVAC refrigerant lines, ensuring a tight seal with minimal leak risk.
• Integration Support: Our team helps connect the WNK85ma to HVAC BAS (Building Automation Systems) like Siemens or Johnson Controls, enabling remote monitoring.
• Quality Assurance: ISO9001:2015 certified, with each unit tested for refrigerant compatibility and pressure accuracy.
• Warranty & Service: 12-month warranty; 24-hour technical support for troubleshooting (e.g., resolving output signal noise in HVAC panels).
• OEM/ODM: Customize output signals (e.g., 0-10V) or housing materials (e.g., 316 stainless steel for coastal HVAC systems) to fit your needs.
