Basic Operating Steps; Switching On/Off - TESTO 521 Instruction Manual

5. Basic operating steps

14
5.1 Switching on / off
5. Basic operating steps
L a n g u a g e
E n g l i s h
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1 . 1
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10.08
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24.8

5.1 Switching on/off

Switching on
Connect the required probes/sensors before swit-
ching on.
1 Switch the instrument on with
 A display test will follow: all segments of the display
will light up for approx. 1 sec.
 Automatic probe detection will be carried out. The
supply voltage and the actual time will be displayed.

Set the language in which the menus are to be dis-
played.
You must set the language before the instrument is
used for the first time or after a factory reset.
Select the language with
with . The selection is stored and will be dis-
played automatically the next time the instrument is
switched on.
You can change a menu setting later via the menu
item Service->Language.

The current readings are displayed. The instrument
is now operational.
The reading of the internal sensor is displayed in
the upper line.
The reading of an externally connected probe
appears in the lower line.
If two probes are connected externally, the measu-
rement of the internal sensor is deactivated.
-Left probe socket: upper line
-Right probe socket: lower line
.
or and confirm