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8. Changing the Battery
A
To ensure the Water Timer runs safely, only a 9 V alkali-
manganese battery (alkaline) type IEC 6LR61 must be used.
.Make sure you exchange the battery at the right time to prevent
the Water Timer failing due to a low battery when you are away for
longer 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 Timer depends on the capability of
the battery. The Water Timer Electronic does not have a battery status
display (acoustic or visual). The Water Timer Electronic 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.
Programs do not run while the battery is being changed.
For notes on changing the battery see “Inserting the Battery”.
9. Notes on Safety and Operation
.To prevent water penetrating the battery compartment the Water
Timer must only be mounted in a perpendicular position with
the sleeve nut pointing upwards.
.The Water Timer opens as soon as you have selected the watering
program. To avoid getting wet when operating the Water Timer the
hose should be connected or the tap turned off before selecting
the program. Alternatively, the control unit can be removed for
operation.
.The Water Timer must only be used outdoors.
Warning! The Water Timer must not be used indoors.
.The Water Timer must be stored in a dry place away from frost
before the frosty season begins.
.The max. temperature for the water flow is 40 °C.
.The minimum operating pressure is 1 bar, the maximum operating
pressure is 12 bar.
.Check the filter in the sleeve nut
7
regularly and clean if neces-
sary.
.Avoid tensile strain. Do not pull the hose connected to the Water
Timer Electronic.
.Only use clear fresh water.
10. Anti-Theft Protection (Fig. D)
To protect your Water Timer against theft, the GARDENA anti-theft
protection
A
(1815-00.791.00) is available at GARDENA Service.
The bracket on the anti-theft protection is fitted onto the back of the unit.
Note that the screw included cannot be loosened once it has been
screwed in. The bracket can be used, for example, to attach a chain.
11. GARDENA Soil Moisture Sensor (Fig. E)
Together with the GARDENA Soil Moisture Sensor (Art. No. 1187) watering
is controlled considering the soil moisture.
Assembly
The Soil Moisture Sensor is connected to the connection socket
6
on
the back of the control unit (Fig. A).
How it works
If the connected Soil Moisture Sensor indicates there is sufficient moisture
then the watering program is either interrupted or not initiated.
Not
e: Manual watering (function man On/Off) is still possible.
12. GARDENA Rain Sensor (Fig. F)
Together with the GARDENA Rain Sensor (Art. No. 1189) watering is
controlled considering natural precipitation.
Assembly
The Rain Sensor, as an alternative to the Soil Moisture Sensor, can be
connected to the connection socket
6
on the back of the control unit
(Fig. A).
How it works
If the connected Rain Sensor indicates an appropriate amount of rain,
the watering program is interrupted or not initiated.
Not
e: Manual watering (function man On/Off) is still possible.