Measuring Of Kv Behavior With A Non-Adapted Tube (Optimus 65/80) - Philips Optimus Manual

Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐
erators release 3.x with converters 4512 104 7231x
EZ130 X4 AV_AN actual value high voltage anode
and
ground EZ130 X6.
Settings see chart.
The second probe remains at the primary current anode side (frontal converter 65/80kW or the frontal converter
of Optimus 50).
▪ Switch an exposure and compare with chart.
▪ Place one oscilloscope probe at
EZ130 X5 AV_CA actual value high voltage cathode (also positive)
and
ground EZ130 X6.
▪ Place the second probe at the primary current cathode side (rear converter 65/80kW).
▪ Switch an exposure 40kV, 50mA, 10ms and compare with chart.
Tube adapted:
(Fig. 22)
If kV values are not symmetrical replace HV transformer. Asymmetry error messages like 02HW (warning in the
background) or 02HX (error) might also come up (measured values see detail screens error log).
Tube arcing messages like 02WG (warning in the background) or 02WH (error) might appear. These should be
visible at the oscilloscope trace as break-in of kV within a time of < 10µs.
It might be a problem of the tube, either because of its age or because it has not properly been conditioned.
In case of errors 02HG (warning in the background) and 02HH (error) realign the duty cycle factor according to
alignment of "Function Unit kV", see appendix.
If a filament is not adapted, adapt it before realigning the duty cycle; otherwise the adjustment is not possible.
12.3 M
EASURING OF K
The primary current behavior is different from an adapted condition as the exposure starts with 2A filament current
that is brought up to filament current limit of the selected focus once high voltage is at its nominal value. Meas‐
urements have been made at kV actual value AV_HT EZ130 X3. To check the kV symmetry, use the settings of
chapter 12.2.
Conv test Optimus
V
BEHAVIOR WITH A NON
CSIP Level 1 (08.0)
© 2008 Koninklijke Philips Electronics N.V.
ALL RIGHTS RESERVED
- (O
ADAPTED TUBE PTIMUS
65/80)
35