Tube Current Verification - Sirona Orthophos 3 Maintenance Manual

Maintenance Instructions
I
3.
O

Tube Current Verification

1. Remove jumper from MA+/MA – test points on PC-board DX1.
2. Connect digital ammeter to MA+ and MA– and select range 20 mADC.
3. Switch unit ON and wait 1 min. for self-adjustment of the unit.
4. Press return key R to return the X-ray head into the initial position.
5. Remove and reinsert the film cassette.
6. Select P1 program and 72kV/10mA at the Multitimer. The LED above R key on Multitimer must be off.
• Measurement:
7. CAUTION RADIATION! Depress the exposure key and hold depressed until meter reading is
obtained.
• If specified value is obtained switch unit OFF. - Remove meter leads and replace jumper!
• If specified values cannot be obtained, see Service Manual, chapter "Tube Current Verification".
10
5.
7.
4./6.
The ammeter shall indicate 10mA ±0.5mA. - - Record reading.
Sirona Dental Systems GmbH
com.
MA – MA+
MA –
jumper
1.
2.
20mADC
MA+
59 01 603 D3285
D3285.103.04.02.02