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Description
The RHT-WM (8803016706) is a high-precision, microprocessor-based wall-mount transmitter designed for indoor environmental monitoring. It accurately measures relative humidity and temperature, converting the readings into dual, independent, loop-powered 4-20 mA analogue signals. Built for seamless integration into building automation (BMS), HVAC, and cleanroom monitoring applications, it features advanced digital calibration and configurable output mapping.
Key Features
- Dual Loop-Powered Outputs: Features two independent 2-wire 4-20 mA (or 20-4 mA) analogue current outputs.
- Configurable Measurement Channels: Outputs can be dynamically mapped to transmit Temperature, Relative Humidity, or calculated Dew Point.
- Software-Driven Calibration: Allows for hassle-free field calibration and range configuration via a USB interface using NOVUS SigNow or TxConfig software.
- Industrial Reliability: Built with high-stability capacitive sensors to minimise long-term drift and hysteresis.
- Robust Enclosure: Designed with an IP65 housing for the electronics to protect against dust and moisture, while the sensor probe utilises an IP40 filter.
Technical Specifications
| Parameter | Specification |
| Part Number (MPN) | 8803016706 |
| Model | RHT-WM (Wall Mount) |
| Temperature Range | -20°C to 70°C (-4°F to 158°F) |
| Humidity Range | 0% to 100% RH (Non-condensing) |
| Temperature Accuracy | ± 0.4°C (at 25°C) |
| Humidity Accuracy | ± 3.0% RH (from 20% to 80% RH at 25°C) |
| Output Type | Dual 4-20 mA or 20-4 mA linear current loops |
| Power Supply | 12 to 30 vDC (Loop-powered) |
| Enclosure Rating | Main Case: IP65 / Sensor Probe: IP40 |
| Housing Material | Polycarbonate (UL94-V2 base) |