NETWORK COMPASS USER MANUAL
USING THE TIMER
Pressing the
TIMER
key enters the timer display mode, which is shown by the presence
of a flashing colon.
MODE
TIMER
LOCK
SETUP
LIGHTS
ENTER
Network COMPASS
30
20
10
30
20
10
The timer can be set to any required value to a maximum time period of 99 hours 59
minutes. The analogue bar graph shows the time left, in minutes, from 30 minutes before
time zero (bar graph on the left) to 30 minutes after (bar graph on the right).
The unit will also beep to indicate the passage of set units of time, the number and
frequency of beeps depending on the time left to time zero. There are no beeps after time
zero. The beep sequences are shown in the table below:
Beeps begin at
Beeps end at
Number of
beeps
Frequency
< 60 hours
1 hour
5
every hour
< 1 hour
=>10 minutes
4
every 10 minutes
< 10 minutes
=> 1 minute
3
every minute
< 1 minute
=> 10 seconds
2
every 10 seconds
< 10 seconds
>0
1
every second
= 0
>-10 seconds
continuous
for 10 seconds
This means that for the example given above of 1 hour 48 minutes the following beeps
will occur:
•
5 beeps at 1:00
•
4 beeps at 0:50; 0:40; 0:30; 0:20; 0:10
•
3 beeps at 0:09; 0:08; 0:07; 0:06...0:01
•
2 beeps at 0:00:50; 0:00:40...0:00:10
•
1 beep at 0:00:09; 0:00:08; 0:00:07...0:00:01
•
continuous beep at 0:00:00 for ten seconds
At each of these periods the display will briefly show the time left. Press
MODE
to return
to the heading display.
12
