Dwyer Instruments RHP-2R1B Humidity Transmitter
The Dwyer Instruments RHP-2R1B Humidity Transmitter is a high-performance outside air humidity transmitter designed for precision environmental monitoring in commercial HVAC and air economizer applications. This dual-purpose sensor utilizes a capacitance polymer humidity sensor to deliver a steady 4 to 20 mA output with ±2% accuracy, ensuring reliable data even in high-moisture conditions. For temperature tracking, it features a passive 10K Ohm Type 2 thermistor. To mitigate the effects of solar gain and ensure peak performance, the RHP-2R1B is equipped with a 6-disc radiation shield and a 40 micron HDPE filter to protect the sensing element from debris and contaminants. The NEMA 4X (IP66) polycarbonate enclosure provides robust protection against the elements, making it an essential component for building energy management systems and outdoor temperature reference points.
Key Benefits- Dual-Signal Integration: Combines relative humidity and passive temperature sensing into a single OSA mount to reduce installation time and wiring complexity.
- Environmental Protection: The 6-disc radiation shield blocks radiant heat while the 40 micron HDPE filter preserves sensor integrity against wind-blown dust and moisture.
- Long-Term Stability: Advanced polymer technology allows the sensor to fully recover from 100% saturation without requiring field calibration.
- Robust Construction: Housed in a NEMA 4X enclosure for superior resistance to corrosion and harsh outdoor environments.
- Application Versatility: Ideal for psychrometric calculations, enthalpy control, and pool room humidity monitoring.
How do I wire the RHP-2R1B for 4-20 mA current loops?
The unit is loop-powered and requires a 10-35 VDC supply. Ensure you use a removable screw terminal block for secure connections and follow the 2-wire configuration for the humidity loop.
Can the sensor be serviced in the field?
While the unit is designed for long-term stability with a drift of less than 1% RH per year, the 40 micron HDPE filter is removable for cleaning. If the sensor is damaged, the sintered filter models allow for sensor replacement without swapping the entire housing.
What is the purpose of the 10K Type II Thermistor?
The 10K Ohm Type 2 thermistor provides a passive resistance output compatible with most standard BAS and HVAC controllers for accurate ambient temperature tracking alongside the RH transmitter.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $299.20
-65%$299.20
$104.72Dwyer Instruments RHP-2R1B Humidity Transmitter
The Dwyer Instruments RHP-2R1B Humidity Transmitter is a high-performance outside air humidity transmitter designed for precision environmental monitoring in commercial HVAC and air economizer applications. This dual-purpose sensor utilizes a capacitance polymer humidity sensor to deliver a steady 4 to 20 mA output with ±2% accuracy, ensuring reliable data even in high-moisture conditions. For temperature tracking, it features a passive 10K Ohm Type 2 thermistor. To mitigate the effects of solar gain and ensure peak performance, the RHP-2R1B is equipped with a 6-disc radiation shield and a 40 micron HDPE filter to protect the sensing element from debris and contaminants. The NEMA 4X (IP66) polycarbonate enclosure provides robust protection against the elements, making it an essential component for building energy management systems and outdoor temperature reference points.
Key Benefits- Dual-Signal Integration: Combines relative humidity and passive temperature sensing into a single OSA mount to reduce installation time and wiring complexity.
- Environmental Protection: The 6-disc radiation shield blocks radiant heat while the 40 micron HDPE filter preserves sensor integrity against wind-blown dust and moisture.
- Long-Term Stability: Advanced polymer technology allows the sensor to fully recover from 100% saturation without requiring field calibration.
- Robust Construction: Housed in a NEMA 4X enclosure for superior resistance to corrosion and harsh outdoor environments.
- Application Versatility: Ideal for psychrometric calculations, enthalpy control, and pool room humidity monitoring.
How do I wire the RHP-2R1B for 4-20 mA current loops?
The unit is loop-powered and requires a 10-35 VDC supply. Ensure you use a removable screw terminal block for secure connections and follow the 2-wire configuration for the humidity loop.
Can the sensor be serviced in the field?
While the unit is designed for long-term stability with a drift of less than 1% RH per year, the 40 micron HDPE filter is removable for cleaning. If the sensor is damaged, the sintered filter models allow for sensor replacement without swapping the entire housing.
What is the purpose of the 10K Type II Thermistor?
The 10K Ohm Type 2 thermistor provides a passive resistance output compatible with most standard BAS and HVAC controllers for accurate ambient temperature tracking alongside the RH transmitter.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Dwyer Instruments RHP-2R1B Humidity Transmitter is a high-performance outside air humidity transmitter designed for precision environmental monitoring in commercial HVAC and air economizer applications. This dual-purpose sensor utilizes a capacitance polymer humidity sensor to deliver a steady 4 to 20 mA output with ±2% accuracy, ensuring reliable data even in high-moisture conditions. For temperature tracking, it features a passive 10K Ohm Type 2 thermistor. To mitigate the effects of solar gain and ensure peak performance, the RHP-2R1B is equipped with a 6-disc radiation shield and a 40 micron HDPE filter to protect the sensing element from debris and contaminants. The NEMA 4X (IP66) polycarbonate enclosure provides robust protection against the elements, making it an essential component for building energy management systems and outdoor temperature reference points.
Key Benefits- Dual-Signal Integration: Combines relative humidity and passive temperature sensing into a single OSA mount to reduce installation time and wiring complexity.
- Environmental Protection: The 6-disc radiation shield blocks radiant heat while the 40 micron HDPE filter preserves sensor integrity against wind-blown dust and moisture.
- Long-Term Stability: Advanced polymer technology allows the sensor to fully recover from 100% saturation without requiring field calibration.
- Robust Construction: Housed in a NEMA 4X enclosure for superior resistance to corrosion and harsh outdoor environments.
- Application Versatility: Ideal for psychrometric calculations, enthalpy control, and pool room humidity monitoring.
How do I wire the RHP-2R1B for 4-20 mA current loops?
The unit is loop-powered and requires a 10-35 VDC supply. Ensure you use a removable screw terminal block for secure connections and follow the 2-wire configuration for the humidity loop.
Can the sensor be serviced in the field?
While the unit is designed for long-term stability with a drift of less than 1% RH per year, the 40 micron HDPE filter is removable for cleaning. If the sensor is damaged, the sintered filter models allow for sensor replacement without swapping the entire housing.
What is the purpose of the 10K Type II Thermistor?
The 10K Ohm Type 2 thermistor provides a passive resistance output compatible with most standard BAS and HVAC controllers for accurate ambient temperature tracking alongside the RH transmitter.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
