Checking The Tube Data; Kv Actual Value And Radiation Time; Checking The Tube Current - Sirona ORTHOPHOS XG 3Dready Service Manual

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7.8 Checking the tube data

Select service routine S002.3 for the exposure (radiation without rotary

movement, radiation time selectable, see page 5-28) and set the following

– Radiation time: 1 s

– kV value: 66 kV

Release radiation and check the kV actual value and radiation time spec-

trometrically, e.g. using a Mult-O-Meter.

If the measured values deviate from the values set above (1 s, 66 kV) by

more than ± 10 %:

Replace the tube assembly (see Page 6-48)

For the XG 3 / 3 PPE system version, sensor positioning must be performed

until the beam strikes the sensor precisely. If the sensor is positioned correctly,

the corresponding values can be compared with the setpoint values.

The electronics of the X-ray tube assembly are always connected to line

The device must be switched off and, after switching off the unit, wait at

least 4 minutes (LED V203 must not be on) before you ...

– remove the cover from the tube assembly

– Attach measuring wires to the DX6 board, or

– detach the jumper from the mA measuring socket

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.

59 38 399 D3352

D3352.076.01.26.02 09.2016

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