Siemens MOBILETT Plus HP - Page 57

HT and single tank error diagnosis 6 - 11
Siemens AG SPR8-220.061.03 Page 11 of 12 MOBILETT Plus HP
Medical Solutions Rev. 03 09.03 CS PS 24
CH1: 20 mV/div, (100 A/div), 10 µs/div (inverter current);
CH2: 500 mV/div, 20 kV/div (HT)
CH1: Inverter current 50 A/div, 10 µs/div
Fig. 8 High speed HT discharges (defective tube, transformer, capacitor)
Fig. 9 Abnormal inverter current (defective single tank)
HTPOS
on D1
Inverter
current
CH1
CH2
Inverter
current
T