71
periods of time. Make sure that the time the battery has been in
operation and the time you are planning to be away does not add
up to more than a year.
.
The functional safety of the Water Computer depends on the capa-
bility of the battery. The Water Computer will only run for approx.
a year if the alkali-manganese battery has a nominal voltage of at
least 9 V. Check the battery before you buy it.
.
To prevent water penetrating the battery compartment, the Water
Computer may only be installed in a perpendicular position with
the sleeve nut pointing upwards.
.
Program the Water Computer with the tap turned off. In this way
you can avoid getting wet when trying out the “man On / Off”
function. You can remove the control unit from the housing to
program the Water Computer.
.
The control unit must be attached to the Water Computer during
operation.
.
Only use the Water Computer outdoors.
Warning ! The Water Computer must not be used indoors.
.
The Water Computer must be stored in a dry place away from frost
before the frosty season begins.
.
The cover provided for the operating display must be used as
shown in Fig. B. To protect the operating display against the
weather the cover must be flipped over when you have finished
programming the computer (Fig. B).
Stick the programming help provided on the inside of the display
cover.
.
At high temperatures (over 60 °C at the display) the LCD display
may extinguish. This does not affect the program in any way.
When the computer cools down the LCD display illuminates again.
.
The max. temperature for the water flow is 40 °C.
.
The minimum operating pressure is 0,5 bar, the maximum operating
pressure is 12 bar.
.
Check the filter in the sleeve nut
C
regularly and clean if neces-
sary.
.
Avoid tensile strain.
Do not pull the hose connected to the Water Computer.
.
Only use clear fresh water.
