Campbell Scientific Hydro-Wiper-C Operation Manual from Zebra-Tech - Manual (Page 2)

Hydro-Wiper operation manual
Zebra-Tech Ltd 1
Overview
The Hydro-Wiper is a mechanical wiper system designed to be easily
fitted to optical turbidity sensors. By wiping at regular intervals, the
Hydro-Wiper keeps the optical window of the turbidity sensor clear of
biofouling and deposits such as mud and algae. This reduces the
necessity for costly site visits to manually clean the turbidity sensor,
and prevents on-going data loss due to fouling.
There are 3 models of Hydro-Wiper, for 3 specific turbidity sensors;
Hydro-Wiper model Turbidity sensor
Hydro-Wiper A Seapoint turbidity sensor
Hydro-Wiper B D&A OBS 3
Hydro-Wiper C D&A OBS 3 +
Hydro-Wiper D Aqualogger 200
Hydro-Wiper E Aqualogger 210
The Hydro-Wiper consists of a wiper body that the turbidity sensor is
attached to. The wiper body is connected to a wiper control housing
by a cable. In addition to the batteries, the wiper control housing
contains the control electronics, power switch, wipe interval select
switch, and diagnostic LED.
As the Hydro-Wiper is fully self contained, incorporation into existing
instrument installations is simple. The low power control electronics
enable long deployments to be made, whilst the high precision wipe
interval timer on-board the Hydro-Wipe insures minimal clock drift
during long deployments.