Gardena 1820 Changing the Battery / Testing the Battery, Notes on Safety and Operation, Program

Models: 1820

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Read / Change Program

You can start or end the watering prematurely at any time by pressing the man. key. The watering time is then 30 minutes.

Read / Change Program

To check the data, you can repeatedly press the O.K. key to run through the program levels. The levels are selected and checked consecutively. This does not interrupt the current program cycle.

To change the data, proceed as described above.

Program Overview

Program

Cycle

Duration

number

 

 

 

 

 

00

No program active

 

 

 

 

01

6 hours (4 times daily)

3 minutes

 

 

 

02

12 hours (twice daily)

3 minutes

 

 

 

03

12 hours (twice daily)

15 minutes

 

 

 

04

24 hours (once a day)

3 minutes

 

 

 

05

24 hours (once a day)

5 minutes

 

 

 

06

24 hours (once a day)

30 minutes

 

 

 

07

24 hours (once a day)

1 hour

 

 

 

08

2 days

5 minutes

 

 

 

09

2 days

30 minutes

 

 

 

10

2 days

1 hour

 

 

 

11

3 days

30 minutes

 

 

 

12

3 days

1 hour

 

 

 

13

7 days

1 hour

 

 

 

14

7 days

2 hours

 

 

 

Manual, programming-independent On/Off (man.)

Before and after entering data, you can operate the GARDENA Water Timer electronic T 14 e manually, independent of the programmed data. To do this, press the man. key.

Press the MAN key once to activate watering for a maximum of 30 minutes (LCD: On). Press the man. key again to end watering.

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7. Changing the Battery / Testing the Battery

 

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

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

 

Time

Start Cycle

 

 

If the battery voltage falls below a

 

 

 

certain level the Batt. indicator appears.

 

 

 

 

·

·

·

.

 

· Batt.

It is possible to initiate watering manually

On ·

 

 

 

 

 

 

even if the battery capacity is too low

 

 

 

 

 

Off ·

 

283 .88

 

 

(valve no longer opens), but programmed

 

 

 

 

 

 

 

 

 

 

watering times, however, are not initiated.

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 during 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 appears, the battery has to be changed.

Previously set data is lost when replacing the battery. AProgram the Water Timer subsequently again.

For notes on changing the battery see “Inserting the Battery”.

8. Notes on Safety and Operation

. 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.

. 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.

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Gardena 1820 Changing the Battery / Testing the Battery, Notes on Safety and Operation, Read / Change Program, number