Checking The Device Leakage Current - Sirona Orthophos XG 3 Installation Instructions Manual

Sirona Dental Systems GmbH
Installation Instructions ORTHOPHOS XG 3

6.2 Checking the device leakage current

DANGER
Perilous shock hazard!
It is essential to switch the unit off and to wait at least
one more 1 minute before beginning the check!
Ensure that the unit is not unintentionally turned back
on.
NOTICE
Important information on building installation
The connection and disconnection of the unit (power cable)
to/from the building installation must be performed by a
qualified expert in compliance with the national regulations.
DIN VDE 0100-710 applies in Germany.
For measurements, Sirona recommends an automatic
tester (example illustration) which complies with standard
IEC 62353. If you do not use an automatic tester, please
pay attention to the specifications in the standard IEC
62353.
1. Switch the line voltage off at the main switch of the
building installation.
2. DANGER! Note the electrical safety rules without
fail.
Disconnect the power cable and the second protective
ground wire from the building installation.
3. Attach a connector compatible with the tester (see the
user's manual for the tester) to the unit's power cable.
4. Plug the connector of your power supply unit into the
intended socket on the tester in accordance with the
user's manual for the tester.
5. Check whether the unit power switch is turned on.
60 51 416 D 3352
D 3352.031.03.18.02
6.2 Checking the device leakage current
IMPORTANT
According to Note 2 below Table 2 of standard IEC 62353,
the maximum device leakage current permitted by the man -
ufacturer is 2 mA for permanently connected units. Make
sure that the automatic tester is programmed for 5 mA
(not 1 mA)
6. Perform the measurements according to the operating
instructions of the tester.
7. Document the measured value of the leakage current in
the technical document "Inspection and maintenance
and safety-related checks" (REF 59 87 685) to identify
changes from the original value.
– A maximum deviation of ±20% from the original
value is permitted for the measured leakage cur -
rent.
8. If a deviation from the original value is >±20%:
Perform troubleshooting according to chapter "Unit
leakage current too high" (see service manual for the
unit).
Reconnect the unit to the building installation (fixed
connection) (see the installation instructions for the
unit).
6 Safety checks
63