Hydro-Wiper Installation and Operation Manual
| 11 |
LED Status Indicator
When the Hydro-Wiper is switched on the LED status indicator will blink 4 times and then a
wipe will be performed. During deployment the LED will blink every 15 seconds. The
number of blinks indicates the performance status of the Hydro-Wiper. Under normal
operation, the LED will blink once. If a fault exists, the LED will blink in a sequence as shown
in table 4.
LED Blink Sequence:
Status Description:
Once every 15 seconds
Normal operation
Twice every 15 seconds
Previous wipe failed
Three times every 15 seconds
Low battery shutdown
TABLE 4: LED INDICATOR BLINK SEQUENCE
During deployment
Unpredictable events can happen during a deployment. The Hydro-Wiper has been designed
to withstand the harsh nature of field deployments.
The wiper drive shaft features a slip mechanism, so the wiper arm can be manually
moved if necessary without causing any damage. This also protects the wipe
gearbox from damage in the event the wiper arm is subject to force or shock
loading during deployment.
The Hydro-Wiper routinely monitors the position of the wiper arm. If the wiper arm
is moved in front of the sensor, the Hydro-wiper will detect this and move the wiper
arm to one side.
If the wiper arm becomes jammed at any stage during a wipe, the direction of
rotation will be reversed in an attempt to dislodge the obstruction. If this is
unsuccessful, the Hydro-Wiper will abort the wipe. The diagnostic LED will flash
twice every 15 seconds whilst this situation continues.
