ZephIR user manual QP1009-582 v2
© Natural Power 2008
10
th
June 2008
Page 46
Washer system filling and
operation
ZephIR incorporates a washer system to ensure that the
laser viewing window is maintained with a high level of
cleanliness.
During normal system operation, it is estimated that a
fluid wash will only be required on a daily basis to remove
dust and debris which collects over time.
Small amounts of dust and debris will not affect the
performance of the system, since the percentage area is
minimal in the context of the overall beam surface area.
Incorporated within the ZephIR algorithm is a ‘dirt’
detection algorithm which identifies the presence of large
areas of unwanted material e.g. leaves or bird deposits.
The presence of any unwanted material will also trigger a
wash wipe sequence.
Each system wash / wipe sequence uses approximately 5
millilitres of fluid, therefore 20ltrs of fluid should provide
around 180 days of wash / wipe operations
Filling the washer system
Filling of the washer is best performed before the site
visit if there is no water available on site. The 20ltr
water tank should allow up to 180 days of wash wipe
operations between refills. Also the water tank should be
well secured, either by straps/wires through the handle or
by digging a hole and placing the tank in (this is helpful
in very cold environments as it will help the fluid remain
unfrozen).
Testing the washer system
Test of the system wash / wipe system can be either
initiated remotely using the ZephIR dial-up or locally using
the ZephIR ethernet application. Alternatively, and for ease
of test in the field, the rain sensor window (shown below)
will activate a wipe sequence with the movement of a
finger over the window.
Fluid recommendations
Fluid choice is highly dependant on temperature extremes
which may be encountered.
TEMPERATURE RANGE
FLUID RECOMMENDATION
+40
o
C to +5
o
C
Screen wash / water
+5
o
C to -10
o
C
Screen wash
-10
o
C to -25
o
C
Ethanol
Note : Screen wash is as used in a normal vehicle washer
system to avoid freezing during cold weather.
Care should be taken to ensure that the fluid containers
are emptied prior to an Ethanol fill.