Tube Current Verification - Sirona Galileos Maintenance Instructions Manual

Sirona Dental Systems GmbH
Maintenance Instructions GALILEOS
6

Tube Current Verification

2.
com.
A
PC-board DX6
DANGER
The electronics of the X-ray tube assembly are always
connected to line voltage.
Always switch the X-ray unit off and wait until V203 is
no longer illuminated before contacting the test leads.
CAUTION
The test leads and measuring instruments used must have
a dielectric strength of at least 1000V!
Be sure to use a battery-powered measuring instrument
with shock-hazard-protected sockets.
Use only test leads with shock protection.
61 16 813 D3437
D3437.103.01.04.02
20mADC
MA+ MA–
400 VDC
3.
➊
➊
A
DANGER
Be sure to switch the X-ray unit off before removing the
jumper for the mA measuring jack.
1. Be sure power is disconnected at the central distribu-
tion panel!
2. Remove jumper A from MA+/MA – test points on PC
board DX6. Connect digital ammeter to MA+ and MA–
and select range 20 mADC.
Switch unit ON ➊ and wait 1 minute.
3.
Press key R to return X-ray tube head to the initial po-
sition.
6 Tube Current Verification
Prog. kV mAs
T R
13