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Datenlogger von Lufft

WS401-UMB Compact Weather Station | All-in-one sensors

Supplementary description:

WS401-UMB Compact Weather Station for measuring of air temperature, relative humidity, precipitation and air pressure. Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature. Optionally, the WS401-UMB can be equipped with a leaf wetness sensor in addition. Precipitation is measured by tipping spoon and tipping bucket processes. The flexible tipping bucket allows a 0.2mm or a 0.5mm resolution of the rainfall. Measurement output can be accessed by the following protocolls: UMB-Binary, UMB-ASCII, SDI-12, MODBUS. One external temperature sensor is connectable.
 

Special features:

  • Aspirated temperature/humidity measurement
  • Open communication protocol:
  • UMB-ASCII
  • UMB-Binary
  • SDI-12
  • MODBUS
  • Analoge outputs in combination with 8160.UDAC

Shopping basket

Ref.no.:8377.U01
Price:On request
Quantity ordered:

Technical data

DimensionsØ approx. 150mm, height approx. 380mm
WeightApprox. 1.5kg
InterfaceRS485, 2-wire, half-duplex
Power supply12-24 VDC ±10%
Operating temperature-50...60°C
Operating rel. humidity0...100% RH
Heating20VA at 24VDC
Cable length10m
Protection level housingIP66
Mast mounting suitable formast diameter 60 - 76mm

Temperature

PrincipleNTC
Measuring range-50 ... 60 °C
Unit°C
Accuracy±0.2°C (-20...50°C), otherwise ±0.5°C (>-30°C)

Relative humidity

PrincipleCapacitive
Measuring range0 ... 100 % RH
Unit% RH
Accuracy±2% RH

Air pressure

PrincipleMEMS capacitive
Measuring range300 ... 1200 hPa
UnithPa
Accuracy±0.5 hPa (0...40°C)

Precipitation

Accuracy±2%
Resolution0.2 mm

Precipitation

Accuracy±2%
Resolution0.5 mm

Download

WSx-UMB_V23_e.pdfManual WSx-UMB from unit version 030 (ENG)
WSx_Release_V44.zipFirmware for WSxxx from unit version 030

Accessories

Product nameProduct group  Ref.no.  Product comparison
Leaf wetness sensor WLW100 Leaf wetness sensor WLW100Sensors8358.10
Passive Road Surface Temperature Sensor WST1 Passive Road Surface Temperature Sensor WST1Transmitter8160.WST1
Temperature probe WT1 Temperature probe WT1Sensors8160.WT1
Digital-analog-converter DACON8-UMB Digital-analog-converter DACON8-UMBAccessories8160.UDAC
UMB Interface converter ISOCON-UMB UMB Interface converter ISOCON-UMBAccessories8160.UISO
Surge protection Surge protectionAccessories8379.USP
Mast 4.5m, hot-dip galvanized, tiltable Mast 4.5m, hot-dip galvanized, tiltableAccessories8357.450
Power supply 24V/4A Power supply 24V/4AAccessories8366.USV1
Connection cable 20m Connection cable 20mAccessories8370.UKAB20