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Dwyer RHP-3W44-LCD RHP-W Wall Mount Point Transmitter

LCD: Yes, Outputs: IV Combo 4-20 mA/0-10 V, Temperature Output: IV Combo 4-20 mA/0-10 V
  • Brand Dwyer
  • Part # RHP-3W44-LCD
  • Model # Series RHP-W
Availability
Discontinued
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Replacement

This product is discontinued, no longer available. Replacement part numbers:

Options and Related Products

LCD:
LCD: Yes
Outputs:
Outputs: IV Combo 4-20 mA/0-10 V
Temperature Output:
Temperature Output: IV Combo 4-20 mA/0-10 V

Dwyer, RHP-3W44-LCD, Series RHP-W Wall Mount Humidity/Temperature/Dew Point Transmitter

LCD Display, Replaceable Sensors

The Series RHP-W Wall Mount Humidity/Temperature/Dew Point Transmitter is the most versatile room transmitter on the market. The stylish housing is well vented to provide air flow across the sensor to improve measurement accuracy. The LCD display indicates the ambient temperature along with the humidity or dew point. The transmitter has internal dip switches to select the temperature engineering units and whether the transmitter outputs humidity or dew point.

The humidity and temperature sensors are field replaceable to reduce service cost and inventory. The humidity and the dew point are measured using a capacitive polymer sensor that completely recovers from 100% saturation. The humidity and dew point can have either a current or voltage output, while the optional temperature output can be a current, voltage, RTD or thermistor. For models with current or voltage for the temperature output, the temperature range is field selectable.

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Technical Details

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Relative Humidity RangeRange: 0 to 100% RH
Temperature Range-40 to 140°F (-40 to 60°C) for thermistor and RTD sensors. -20 to 140°F (-28.9 to 60°C) for solid state band gap temperature sensors
Dew Point Temperature Range-20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C) field selectable ranges
Accuracy ±3% 20-80% RH @ 25°C
Hysteresis±1%
Repeatability±0.1% typical
Temperature LimitsOperating: -40 to 140°F (-40 to 60°C); Storage: -40 to 176°F (-40 to 80°C)
Compensated Temperature Range-4 to 140°F (-20 to 60°C)
4-20 mA Loop Powered OutputPower Requirements: 10-35 VDC. Output Signal: 4-20 mA, 2 channels for humidity/solid state temperature sensor models (loop powered on RH). Switch selectable RH/dew point. Switch selectable normal or reverse output
Solid State Band Gap Temp Sensor Output RangesSwitch selectable, -20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C)
Response Time15 seconds
Electrical ConnectionsScrew terminal block
Drift<1% RH/year
RH SensorCapacitance polymer
Enclosure MaterialWarm gray polycarbonate
Display LCD
Display ResolutionRH: 1%; Temperature: 0.1°F (0.1°C); Dew Point: 1°F (1°C)
Weight0.3 lb (0.14 kg)
Agency ApprovalsCE
Product Details
Relative Humidity RangeRange: 0 to 100% RH
Temperature Range-40 to 140°F (-40 to 60°C) for thermistor and RTD sensors. -20 to 140°F (-28.9 to 60°C) for solid state band gap temperature sensors
Dew Point Temperature Range-20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C) field selectable ranges
Accuracy ±3% 20-80% RH @ 25°C
Hysteresis±1%
Repeatability±0.1% typical
Temperature LimitsOperating: -40 to 140°F (-40 to 60°C); Storage: -40 to 176°F (-40 to 80°C)
Compensated Temperature Range-4 to 140°F (-20 to 60°C)
4-20 mA Loop Powered OutputPower Requirements: 10-35 VDC. Output Signal: 4-20 mA, 2 channels for humidity/solid state temperature sensor models (loop powered on RH). Switch selectable RH/dew point. Switch selectable normal or reverse output
Solid State Band Gap Temp Sensor Output RangesSwitch selectable, -20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C)
Response Time15 seconds
Electrical ConnectionsScrew terminal block
Drift<1% RH/year
RH SensorCapacitance polymer
Enclosure MaterialWarm gray polycarbonate
Display LCD
Display ResolutionRH: 1%; Temperature: 0.1°F (0.1°C); Dew Point: 1°F (1°C)
Weight0.3 lb (0.14 kg)
Agency ApprovalsCE
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