Description
From the WS product family of professional intelligent measurement transducers with digital interface for environmental applications.
Supplementary description
WS304-UMB Smart Weather Sensor for measuring of air temperature, relative humidity, solar radiation, air pressure. Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. Measurement output can be accessed by the following protocolls: UMB-Binary, UMB-ASCII, SDI-12, MODBUS. One external temperature or rain sensor is connectable.
Special features
- All in One
- Aspirated temperature/humidity measurement
- Open communication protocol:
- UMB-ASCII
- UMB-Binary
- SDI-12
- MODBUS
- Analoge outputs in combination with 8160.UDAC
- Third-Party-Rain gauge sensors are compatible: 0.1mm, 0.2mm, 0.5mm, 1mm heated and unheated.
| Temperature | |
| Principle | NTC |
| Measuring Range | -50…60°C |
| Accuracy | ±0,2°C (-20°C… 50°C), otherwise ±0.5°C (>-30°C) |
| Relative Humidity | |
| Principle | Capacitive |
| Measuring Range | 0…100% RH |
| Accuracy | ±2% RH |
| Radiation | |
| Response Time (95%) | < 1s |
| Spectral range (50% points) | 300 to 2,800nm |
| Measuring range | 1400 W/m² |
| Air Pressure | |
| Principle | MEMS Capacitive |
| Measuring Range | 300…1200 hPa |
| Accuracy | /- 0.5 hPa (0… 40°C) |
| General Information | |
| Heating | 20VA at 24VDC |
| Interface | RS485, 2-wire, half-duplex |
| Operating Power Consumption | 4….32 VDC |
| Operating Humidity Range | 0…100% |
| Operating Temperature Range | -50…60%°C |
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