Bedienungsanleitung Danfoss 841 (Seite 2 von 2) (Englisch)

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SETTING SWITCHING TIMES

The mains electricity supply must be ON, the key inserted and turned to

either the Set Programme position (Model 841) or Set Channel 1 position

(Model 842) before carrying out any operations detailed below.

Initially the display will show

E E E E E

indicating that the memory is empty.

Since the timeswitch is capable of automatically carrying out up to 200

switching operations it is recommended that the required programme be

tabulated before setting is commenced, noting that the day number on

display is the current day of the week. A table is provided for this purpose.

In addition, facilities are provided to record the programme(s) entered on

the enclosed card, which can be located adjacent to the unit if required.

It is not essential to key in the programme in sequence since it will

automatically be sorted into chronological order.

To set a programme event:

First press the number key representing the day of the week to be

programmed.

Secondly, key in the time using four numeric keypads in the range 0000

to 2359.

Finally press Enter to enter the required event into the memory.

The unit will not allow the entry of a spurious day or time e.g. day 8 will not

be accepted nor will a time entry of 3600. Depression of an out of range

key will not register on the display; the LCD digit will blink but remain

unchanged until an acceptable number is keyed.

Proceed with the programming of every event using the same entry

sequence.

If an attempt is made to exceed 200 programme events then the display

will show

F F F F F

indicating that the memory is full.

If an incorrect key is pressed then press the Cancel key and re-commence

the sequence.

If a programme event is repeated at the same time on different days then

the keying may be simpliﬁ ed as follows.

Key in the ﬁ rst event using the normal entry sequence. Now simply key in

the new day number and then Enter .

For Model 842 only: Having completed the programme setting for

Channel 1, turn the key to Set Channel 2 and enter the programme required

for this channel in the same manner.

Note: The 200 switching operations are able to be freely spread over

both channels. If a common event time is required on both channels this

represents only one switching operation.

The complete programme may be checked by the use of the

Verify key. Each press of this key will advance the programme by one

event allowing a complete review in chronological sequence commencing

from the day and time on display. If a particular day’s programme is to be

reviewed then key the day number followed by

0 0 0 0 & Verify

when the ﬁ rst programmed event for that day will be displayed then

proceed with repeated presses of the Verify key.

When re-programming one or more events, unwanted events

must be cleared by advancing to the event in question using the

Verify key as explained above and then clearing it by a single press on

the Cancel key.

In the case of Model 842 both the Verify and Cancel functions apply only

to the channel selected by the keyswitch at that time.

To clear the entire programme on both channels, press and hold down the

Cancel key for approx. 3 seconds until the display shows

E E E E E

On completion of programming return the key to Run and the selector

switch(es) to Auto.

BATTERY RESERVE

The unit does not rely on the internal battery in order to work satisfactorily

providing the mains power supply is connected to the unit. The battery is

ﬁ tted purely to memorise the Time of Day and selected Switching Times

in the event of a power failure or disconnection of supply.

When the unit is ﬁ rst connected it will require a minimum of 24 hours to

become sufﬁ ciently charged in order to perform this memory function.

Thereafter the battery is automatically recharged.

If the mains power supply is lost, for any reason, the display on the unit

will go out. The battery will maintain the memory for a period of up to 3

months during this condition. When the power supply is restored, the unit

will automatically switch on again and resume the set programme without

any resetting being necessary.

Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss Randall reserves

the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without

subsequent changes being necessary in speciﬁ cations already agreed.

Danfoss Randall Ltd,

Ampthill Road,

Bedford MK42 9ER

Tel: (01234) 364621 Fax: (01234) 219705

Email: danfossrandall@danfoss.com

Website: www.danfoss-randall.co.uk

Part No: 3282 Issue 9 12/05

Example Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Assigned Day No. 1 2 3 4 5 6 7

CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2

Event Time 0845 0845 0845 0845 0845 0845 0845 etc. etc. etc. etc. etc. etc. etc.

0910 0910 0900 0900 0900 0900

0925 0915 0915 1230

1300 1230 1300 1230 1330 1530 1530

1530 1530

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Assigned Day No.

CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2

Event Time

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