Total Rain weighing Sensor
TRwS204/504/205/405

Total Rain weighing Sensor TRwS with its original mechanical and electronic design is excellent tool to measure all types of precipitation within wide temperature range, harsh wind and snow conditions. TRwS is most sensitive and very accurate rain gauge. Simple mechanical construction together with very sophisticated firmware can guarantee perfect performance. TRwS is available with apertures of 500cm² as well as 200cm².

    Main features
  • Measurements of solid and liquid precipitation, one-minute rain intensity, total sum of precipitation, rain duration
  • Elimination of wind vibration, particles, unreal step change of weight, evaporation, temperature fluctuation
  • Output signals: contact, RS-485, SDI-12
  • Easy maintenance
  • Evaluation and accuracy check “in situ”
  • Local and remote diagnostics
  • Autodiagnostic and self check
  • Orifice heating included
  • Direct replacement of tipping bucket rain gauge
    Optionally
  • Air temperature measurement
  • Rain detector
  • Wind speed assessment
  • Corrected data eliminating wind influence
  • Fulfills all the WMO recomendations

Specifications
  TRwS204 TRwS504 TRwS205TRwS405
Measurement
Orifice area200cm2500cm2200cm2400cm2
Range of precipitation750mm250mm1500mm750mm
Accuracy0.1%
Maximum rain intensity120mm/min
Resolution0.001mm
Measuring elementstrain-gauge bridge
Air temperature measurementoptional, -35..+70(±0.5)°C
Wind speed estimationoptional
Wind correctionyes
Wind shieldyes
Electrical & Interface
Power supply8..24VDC/15mA max
Heating supply10..15VDC/1..2A
Output contact
(1 or 0.1 or 0.01mm)
Umax=30V, Imax=300mA
Serial outputRS-485/SDI-12
Mechanical
DimensionsØ360×540mmØ360×380mmØ385×650mmØ385×610mm
Weight8.0kg9.5kg
Environmental
Operating temperature range-40..+70°C
Operating humidity range0..100%
Degree of protectionIP65