14
| English
1 609 929 K82 • 17.1.07
When the battery indication
a
in the display lights up, measuring is
possible for approx. 1 h when using alkali-manganese batteries (serv-
ice life is shorter with rechargeable batteries). When the battery indi-
cation
a
flashes, measuring is still possible for approx. 10 minutes.
When the battery indication
a
and the illuminated ring
1
(red) are
flashing, measuring is no longer possible and the battery or the
rechargeable battery respectively, must be replaced.
f
If the measuring tool is not used for a long period of time,
the battery must be removed.
The battery can corrode or dis-
charge itself over long periods.
Operation
Initial Operation
f
Protect the measuring tool against moisture and direct
sun irradiation.
Switching On and Off
f
Before switching the measuring tool on, make sure that
the sensor area 5 is not moist.
If required, wipe the measur-
ing tool dry using a cloth.
f
If the measuring tool was subject to an extreme temper-
ature change, allow it to adjust to the ambient tempera-
ture before switching on.
To
switch on
the measuring tool, press the On/Off switch
4
.
After a brief self-check, the measuring tool is ready for operation.
The operational readiness is indicated by a check mark behind the
“AutoCal”
calibration indicator
d
.
To
switch
the measuring tool
off
, press the “on/off” button
4
.
When no measurements are carried out for approx. 10 minutes, the
measuring tool switches off automatically in order to extend the serv-
ice life of the batteries.
OBJ_BUCH-308-001.book Page 14 Wednesday, January 17, 2007 9:55 AM