7.6 Sleep Mode
For long term monitoring with larger measuring cycles it is possible to operate
the measuring device in sleep mode. Within this power saving mode the device
will be switched off after each measuring point scan and will be automatically
switched on for the next measuring point scan after the cycle time has expired.
This procedure allows for one battery to perform approximately 7,000
measuring point scans. At 15 minutes for one cycle this results in a total
measuring time of more than 70 days.
The following steps must be performed for an
operation in sleep mode
:
1. Enter a measuring or print cycle of a minimum of 2 minutes.
If both are programmed the measuring cycle will be ignored.
2. Start measuring point scan using the key
START/STOP
.
The starting and stopping by the start and end time,
and also by the limit values, is generally not possible in sleep mode and
must, therefore, be switched off!
3.
Switch over to sleep mode
Move the slide switch (1) to the upper position,
´
SLEEP ON´
will be displayed for a short period,
and the instrument will be practically switched off.
4. Within the set cycle the instrument will automatically switch on,
perform a measuring point scan,
display ´
SLEEP ON´
and the measured values,
and then switch off again.
5.
Switch over to active normal operation:
Move the slide switch (1) to the centre position.
6. Terminate the measurement by pressing the key
START/STOP
.
S L E E P
ON
42
ALMEMO
®
2290-8
Digital Data Output
