Gardena 1820 Manuale di istruzioni per l'uso - Pagina 9

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7. Changing the Battery / Testing the Battery

To ensure the Water Timer runs safely, only a 9 V alkali-

manganese battery (alkaline) type IEC 6LR61 must be used.

28 . . 88

Off

Even if the battery capacity is too low to run a program, if the valve is

open it will be closed.

The battery voltage is tested between the opening and the closing

pulse. In this way you can test the capability of the battery at any time.

To do this, press two times the On / Off-man. key. If the valve closes and

the Batt. indicator does not appear then the battery is functioning. If the

display disappears and only the Batt. indicator is visible, the battery has

to be changed.

Previously set data is lost when replacing the battery.

Program the Water Timer subsequently again.

For notes on changing the battery see "Inserting the Battery".

Hint ! Please return the flat battery to a GARDENA dealer or dispose of it

properly at your nearest recycling centre. Only dispose of battery when

it is flat.

The minimum water output to ensure that the Water Computer

functions correctly is 20 - 30 l / h.

For example, at least 10 x 2-litre Drip Heads are required to

control the Micro-Drip-System.

To prevent water penetrating the battery compartment the Water

Timer must only be mounted in a perpendicular position with

the sleeve nut pointing upwards.

Program the Water Timer with the tap turned off. In this way

you can avoid getting wet when trying out the manual On / Off

function. You can remove the control unit from the housing to

program the Water Timer.

The Water Timer must only be used outdoors.

Warning ! The Water Timer must not be used indoors.

If the battery voltage falls below a

certain level the Batt. indicator appears.

It is possible to initiate watering manually

Batt.

even if the battery capacity is too low

(valve no longer opens), but programmed

watering times, however, are not initiated.