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Sirona Dental Systems GmbH
K1
N
N
L
L
4.
Power Supply Adequacy
•
To determine power supply adequacy, the line voltage drop during exposure must be measured.
1. Be sure power is disconnected at the central distribution panel!
2. Remove front plastic cover (for details see Service Manual). Remove lateral metal cover (6 srews).
3. Select 300VAC line voltage range on multimeter.
4. Connect measuring leads to terminal K1, L and N.
5. Connect power and switch unit ON. Wait 1 min. for self-adjustment of the unit.
6. Press key R at the Multitimer to return X-ray tube head into the initial position.
7. Remove and reinsert the film cassette.The LED over R key at the Multitimer must now go out.
8. Select P1 program and 80kV/10mA at the Multitimer.
9. CAUTION RADIATION! - Depress the exposure key at the Multitimer until meter reading is obtained.
Line voltage, no load: 187 – 208V
•
- - Record reading. Turn unit OFF. Remove meter leads and refit lateral metal cover.
•
If the voltage drop is not within the specified range advise the customer, that an adequate power
supply must be installed. Refer to Pre-Installation Instructions.
59 01 603 D3285
D3285.103.04.02.02
metal cover
2.
6 screws
ON
I
5.
O
3.
300VAC
Max. permissible line voltage drop: 9V
208 – 230V
230 – 240V
240 – 264V
1.
5.
Maintenance Instructions
6.– 9.
For details see
Installation Instructions,
same chapter or
Operating Instructions.
8V
7.5V
7V
7
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