1
Output
DESCRIPTION
Models 811 and 851 are identical in appearance except for the model
number shown on the facia.
The
Day
and
Time
are displayed as fi ve digits on the liquid crystal display
(LCD).
The fi rst digit in its separate window marked
Day
will be a numerical from
1
to
7
which may be allocated in sequence to the days of the week at the
user’s discretion. The normal convention is Monday = 1, Tuesday = 2 .........
Sunday = 7.
The remaining four digits in the window marked
Time
will display the time
to a resolution of one minute from 0000 to 2359.
A short ‘bleep’ will be heard when a keypad is pressed. In addition when
a numeric keypad is pressed the associated digit on the LCD will either
blink or change.
There are fi ve red indicator lights. Four are associated with the keypads
‘Extend’
,
‘Enter on’
,
‘Enter Off ’
and
‘Crop’
, and one labelled
‘Output’
.
The 2 position selector switch may be set to
Off
to override the programmes
or it may be set to
Auto
to follow the programme which has been set.
The programme indicator lights will switch on and off to follow the set
programme events in both the selector switch positions but the output
status indicator light will only be on if the selector switch is at
Auto
and
either the
Enter On
or
Extend
indicator lights are on.
If the
Enter On
and
Crop
indicator lights are On the output status indicator
light will be off .
It is recommended that the key be removed from the keyswitch to prevent
unauthorised or accidental changes to the settings. The key can only be
removed when in
Run
position.
TIME OF DAY
The mains electricity supply must be ON, the key inserted and turned
to
Set Time
position before carrying out the operations detailed below.
When the timeswitch is fi rst connected, or when the battery has been
allowed to discharge fully, and the mains electricity supply is switched ON
a dash (-) will be displayed in each of the fi ve digit positions.
Decide which day of the week you wish to assign as Day 1.
Press the number key representing the current day of the week (listen for
the ‘bleep’).
The remaining days will be automatically numbered in sequence.
Key in the time using four keypads e.g. 8:30 a.m. must be keyed as
0 8 3 0
and 6:15 p.m. as
1 8 1 5
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.
DO NOT PRESS ANY FUNCTION KEYPADS.
Returning the key to the
Run
position will enter the time shown on the
display.
Seven Day Single Channel Electronic Timeswitch
Models 811 and 851
User Instructions
SETTING SWITCHING TIMES
The mains electricity supply must be ON, the key inserted and turned to
the
Set Programme
position before carrying out any of the 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.
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 On’
or
‘Enter Off ’
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.
7
8
9
4
5
6
1
2
3
Verify
0
Cancel
Enter On
2I08
4
Auto Off
Set
Programme
Run
Day
Time
Day of Week Display
Time of Day Display
10
Numeric
Keypads
6 Function
Keypads
3 Position
Keyswitch
Output Status
Indicator Light
CAUTION: The unit operates at mains voltage and should only be opened by a
qualifi ed engineer after disconnection from the mains supply.
851
Programme
Indicator Lights
Set Time
Extend
Enter Off
Crop
2 Position
Selector
Switch
Model
811 or 851
