Maintenance; Battery Charge; Changing The Battery/Rechargeable Battery; Cleaning The Unit - testo 555 Bedienungsanleitung

B B a a t t t t e e r r y y
M M e e m m o o r r y y
testo 555/556
The
intervals. However, we recommend that the functionality,
tightness and accuracy of the system is subjected to an annual
check in the factory.
Requirements resulting from factory certifications must be taken
into account separately (e.g. calibration).

7.1 Battery charge

6 6 4 4 % %
9 9 9 9 % %
Hold
remaining battery capacity.
B B a a t t t t
If
screen, the remaining period of operation is approx. 10 hours.
The unit switches off automatically if the voltage is too low.
7.2 Changing the battery/rechargeable
battery
1 Press the external battery compartment cover upwards at the
hinge
2 Open the internal battery compartment cover using a small
screwdriver.
3 Connect the battery/rechargeable block battery to the battery
clip and insert in the compartment. Observe the polarity!
4 Close the internal cover and the battery compartment cover.

7.3 Cleaning the unit

You can clean the case with a moist cloth. Weak household
cleaning agents and detergents may be used. Never use
aggressive cleaning agents or solvents!
is not subject to specific maintenance
depressed for longer than 2 seconds to display the
appears on the display on the Vacuum measurement
and lift open . Do not use tools.
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