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Dwyer RHP-3O1A | OSA Humidity/Temperature Transmitter | ±3% RH, 4-20 mA RH, 10K Type III
With a 4-20 mA humidity output plus a passive 10K Type III NTC thermistor temperature output, the Dwyer RHP-3O1A is an outside air (OSA)-mount unit measuring humidity to ±3% (20 to 80% RH @ 25°C). The RHP-3O1A belongs to Series RHP and uses a capacitance polymer humidity sensor.
- Supply for the 4-20 mA version: 10-35 VDC (loop powered) (RHP-3O1A)
- RHP-3O1A: 10K Type III temperature sensor accuracy ±0.2°C @ 25°C (±0.36°F @ 77°F)
- Measures 0 to 100% RH; drift below 1% RH per year, hysteresis ±1%, response time 15 s on the RHP-3O1A
- OSA housing: polycarbonate, NEMA 4X (IP66), 1/2" (22.3 mm) conduit connection, 1 lb (0.45 kg) (RHP-3O1A)
- RHP-3O1A: Operating range -40 to 140°F (-40 to 60°C)
- Specifications
- Features
- Downloads
| Part Number | RHP-3O1A |
| Brand | Dwyer |
| Series | RHP |
| Mounting | OSA |
| RH Accuracy | ±3% (20 to 80% RH @ 25°C) |
| RH Range | 0 to 100% RH |
| RH Output | 4-20 mA |
| Temperature Output | 10K Type III NTC thermistor |
| Temperature Accuracy | ±0.2°C @ 25°C (±0.36°F @ 77°F) |
| Power | 10-35 VDC (loop powered) |
| Response Time | 15 s |
| Drift | <1% RH/year |
| Enclosure Rating | NEMA 4X (IP66) |
| Weight | 1 lb (0.45 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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