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Commissioning
21
Make sure that only NiMH rechargeable batteries are in the battery
compartment. The charging process is optimized for NiMH re-
chargeable batteries. Other battery types can cause damage dur-
ing the charging process.
Make sure that the ambient temperature is max. 40 °C while the
power pack is connected.
1
Connect the plug of the power pack to the socket for the power
pack on the Multi 3420.
2
Connect the original power pack to an easily accessible power
outlet.
During mains operation, one of the following symbols is displayed:
:
Mains operation with charge function
Batteries are automatically charged in the background.
Mains operation
:
Note
Charge the batteries completely prior to putting the meter into operation
for the first time. The charging process takes approx. 10 hours. The
symbol is displayed if the batteries are nearly discharged.
3.3.3 Switching on the meter
1
Press the <On/Off> key.
The meter performs a self-test.
The display shows the manufacturer's logo while the self-test
is being performed.
2
Connect the sensor.
The meter switches to the measuring mode (measured value
display).
Note
The meter has an energy saving feature to avoid unnecessary power
consumption during battery operation.
The energy saving feature switches off the meter during battery opera-
tion if no key is pressed during the adjusted interval. (How to set the
switch-off interval, see section 4.4).
The switch-off interval of the energy saving feature is not active when
the meter is supplied with power via the power pack or the USB-B
Multi 3420
ba75864y18
01/2015
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