




Dwyer Instruments RHP-3D2D | Duct mount 3% RH/temperature transmitter with 0-10 VDC RH output and 100 Ohm RTD DIN 385 temperature output
A passive temperature thermistor or RTD output is combined with the voltage or current humidity transmitter output in the Series RHP, Model RHP-3D2D humidity and temperature transmitter. Models with polymer capacitance humidity sensors come in 2%, 3%, or 5% accuracy options. A two-line alpha numeric LCD display is an optional feature for duct mounted transmitters.

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Accuracy | RH: RHP-2XXX +/-2% 10 to 90% RH @ 25°C;RHP-3XXX +/-3% 20 to 80% RH @ 25°C;RHP-5XXX +/-5% 20 to 80% RH @ 25°C |
Accuracy | RTD Temp Sensor: DIN Class B; +/-0.3°C @ 0°C (+/-0.54°F @ 32°F) |
Accuracy | Solid State Band Gap: +/-0.9°F @ 77°F (+/-0.5°C @ 25°C) |
Accuracy | Thermistor Temp Sensor: +/-0.2°C @ 25°C (+/-0.36°F @ 77°F) |
Approvals | CE |
Connection | Conduit: Duct Mount: 1/2" NPS; OSA: 1/2" (22.3 mm) |
Connection | Electrical: Removable screw terminal block |
Display Resolution | RH: 0.1%; 0.1°F (0.1°C) |
Display | Duct Mount only, optional 2-line alpha numeric, 8 characters/line |
Drift | <1% RH/year |
ENCLOSURE MATERIAL | Duct mount sensor tube: PVC-UL 94 V-0; Duct mount sensor cap: Polycarbonate ABS blend-greater than UL 94 V-0; Duct mount electronics housing and cover: Makrolon® polycarbonate-UL 94V-HB; OSA: Polycarbonate. |
Enclosure Rating | Duct mount: NEMA 4X (IP66) for housing only; OSA: NEMA 4X (IP66) |
Hysteresis | +/-1% |
Manufacturer | Dwyer Instruments |
Output Signal | 4-20 mA; 0-5/10V @ 5 mA max |
Power | 4-20 mA loop powered models: 10-35 VDC; 0-5/10 V output models: 15-35 VDC or 15-29 VAC |
Relative Humidity | Range: 0 to 100% RH |
Repeatability | +/-0.1% typical |
Response Time | 15 s |
Sensor Type | Capacitance polymer |
Storage Temperature | Compensated: -4 to 140°F (-20 to 60°C) |
Temperature Range | -40 to 140°F (-40 to 60°C) |
TEMPERATURE SENSOR | >Types 1, 2, 3: Solid state band gap Curves A,B,C; Thermistor Curves D,E; Platinum RTD DIN 385. (See R-T Lookup Table) |
Temperature | Limit: -40 to 140°F (-40 to 60°C) |
Type | Humidity and Temperature Transmitter |
Weight | Duct Mount: .616 lb (.3 kg) OSA: 1 lb (.45 kg) |
- Lower installation costs when temperature and humidity are combined.
- With 2%, 3%, and 5% accuracy and a wide range of temperature sensors, there is a wide application environment.
- Lower system operating costs thanks to the radiation barrier that shields the sensor from heat radiation.
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