Overview
The WS400-UMB is a compact all-in-one weather sensor with measurement of temperature, relative humidity, air pressure, precipitation intensity, type and quantity. It is part of the WS product family of professional intelligent measuring sensors with a digital interface and an integrated design with ventilated radiation protection for various environmental applications. An external temperature sensor can be connected.
Benefits
Maintenance free operation as there are no moving parts that can wear out. Precipitation is measured with a radar sensor.
SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, and XDR.
All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only a single cable connection.
Specifications
Technical Attributes
| Weight EU | 3.3 lb (˂ 1.5 kg) |
| Air Temperature | Accuracy: ±0.4 °F (-4 - +122 °F) or ±0.2 °C (-20 - +50 °C), otherwise ±0.9 °F (˃ -22 °F) or ±0.5 °C (˃ -30 °C) Measuring range: -58 - +140 °F (-50 - +60 °C) Measurement technology: NTC Resolution: 0.1 °C (-20 - +50 °C), otherwise 0.2 °C |
| Relative humidity | Accuracy: ±2 % RH Measuring range: 0 - 100 % RH Measurement technology: Capacitive |
| Interface | RS485 2 wire Baud rate: 1200 - 38400 bit/s (Standard: 19200) or SDI-12 |
| Air Pressure | Accuracy: ±0.5 hPa (0 - +104 °F) or ±0.5 hPa (0 - +40 °C) Measuring range: 300 - 1200 hPa Measurement technology: MEMS capacitive |
| Precipitation | Accuracy: 20 % Measuring range: 0 - 200 mm/h Measurement technology: 24 GHz Radar |
| Dimensions (free text) | Ø150 x 279 mm |
| Communication | SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR |
| Power supply | 12 - 24 VDC |
| Casing IP Rating | IP66 |
| Operating temp range 1 | -50 - +60 °C |
| Cable Length | 33 ft (10 m) |
| Operating humidity | 0 - 100 % |
| Cable Connection | Open wires |
| Material enclosures | Plastics (PC) |
| Battery? | No |
| Analogue inputs | 1 |
Resources
Software/Firmware (5)
Manuals (6)
Application Notes (1)
Case Studies (1)
Data Sheets (2)
8160.UISO
Lufft Interface Converter ISOCON-UMB
8366.USV1
Power supply 24V/4A
8379.USP
Lufft Surge Protection
8357.6
Lufft Mast, hot-dip galvanized, tiltable, 6 m
8357.45
Lufft Mast, hot-dip galvanized, tiltable, 4.5 m
8366.USV2
Power Supply 24V/10A