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Precipitation sensor (monitor)

Sensors to detect start and end of precipitation

Precipitation sensor (monitor) - Sensors to detect start and end of precipitation

Key benefits

  • Fast and precise reaction up to detection of single drops
  • Rugged construction for reliable operation for many years
  • Different types available - optimised for the use also at special sites (mountain, sea/off-shore, industrial areas ...)

Description

Many applications require a reliable detection of precipitation begin and end. The signals are either used to control and trigger other devices or to log the data accordingly. Eigenbrodt precipitation sensors (monitors) are being used all over the world and in all climate conditions and special sites.
National weather service and other authorities like the EPAs trust in Eigenbrodt technology to detect precipitation like drizzle, rain, hail and snow. All Eigenbrodt wet-only precipitation collectors and acid rain monitors are in standard equipped with the RS 85 sensors.
Some sites or applications require special designs; therefore Eigenbrodt is able to supply a complete line of precipitation sensors also to satisfy special needs.


Scope of supply

  • Precipitation sensor with 1,5m calbe (standard)

Options available

  • Mast and wall mounting
  • Additional cable length
  • Power supply (230V AC; 110V AC)

Technical data

Function RS 85/ RS 85 OP NRS 80 IRSS 88
Detection principle electrical conductivity electrical conductivity dual-beam IR sensor
Switch on without delay without delay without delay after 5 drops within 90 seconds*
Switch off with delay, adjustable 0 to 270 sec in 30 sec steps. (not with collectors) with delay, adjustable 0 to 270 sec in 30 sec steps. (not with collectors) without delay after 0...4 drops within 90 seconds*
Sensitivity 0,05 mm/h 0,05 mm/h 5 drops within 90 seconds*
Detection surface 60 cm² 40 cm² 30 cm²
Signal opener/closer potential free opener/closer potential free closer potential free
Switch supply max. 100V DC / 250V AC max. 100V DC / 250V AC max. 50V AC
Switch current max. 5A max. 5A max. 0,5A
Switch power max. 1250VA max. 1250VA max. 120VA
Dimensions 83 x 83 x 85 mm 80 x 75 x 60 mm 275 x 185 x 85 mm
Weight 0,7 kg 0,4 kg 2 kg
System of protection IP65 IP65 IP65
Specialities snow catchment pins  for snowy sites (RS 85);
sites with few or no snow (RS 85 OP)
sites with few or no snow;
economical applications
low power requirements; coastal and off-shore sites
* Optional available for the IRSS 88: DEU (drop evaluation unit). This unit allows to modify the number of drops and interval length. Also an immediate detection after the preset number of drops will be provided within the ongoing interval.
      - selectable events: 1…9
      - selectable interval length: 30…300 sec in 30 second steps

Available for

BUS 100 BUS 125 UNS 130 NSA 171 NSA 181 NSA 181/K NMO 191
       
  • Yes