HYDRO-WIPER-D OBS-3+ Datalogger-Controlled Wiper, 5 m (16 ft) Cable


The HYDRO-WIPER-D is a common accessory for the OBS-3+ Turbidity sensor. This datalogger-controlled wiper can be activated to remove algae and other fouling before each measurement. The HYDRO-WIPER-D uses the datalogger's power supply and has a 5-m cable.



Control Input The wiper control module has an internal 10 k pull-down resistor. The control line needs to be set high to +5 volts for a minimum of 10 ms to initiate a wipe.
Power Supply 8 to 15 Vdc
Power Consumption
  • 0.05 mA (between wipes)
  • Typically 90 mA during a wipe. If the wiper arm is jammed, power consumption can momentarily rise to about 500 mA.
Construction Stainless steel, acetal
Wiper Shaft Multiple bearing support with quad ring seal
Cable EPDM jacketed cable
Depth Rating 30 m (98.425 ft)


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Common Accessory for the following products: