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Signal
Measuring Point
time
meter)
During exposure
Cal
D915.TP. CAL point
During switching on
Reg
D915.TP.REG point
During Service Mode
2.6.3 Exposure
Switch the generator ON.
Set exposure parameters 60KV, 10mAs.
Pull the recoilable hand held exposure release switch and release an exposure.
The Amber colored LED on top panel lights up for a short duration equal to
exposure time and an audible indication by a Buzzer from the control.
The LED's on D915 light in the following sequence:
Select the one step Exposure release switch. Internally First Press & second press
stages are activated. This corresponds to Preparation & Exposure stage with green
LEDV22 & Yellow LED V23 glowing respectively.
In case of error Red LED V24 on D915 lights and error code corresponding to the
error is displayed.
2.6.4 Timing
Set any exposure parameter as per the exposure chart.
Take an exposure and note down the kV and mA wave form in the oscilloscope.
Check for the timing of exposure.
It should be within ±5% of the value defined in the exposure chart.
2.6.5 kVp Measurement
The kVp measurement can be carried out either by kVp-meter or by electrical
measurement.
2.6.5.1
kVp-meter
Switch the unit ON.
Place the kV sensor over the single tank and connect the cable to the meter.
Set the kVp meter at 12pulse and 55-85kV ranges.
Siemens Ltd. Med India
Time 238 – 262 msec
(Refer to the Exposure
charts section for various
combinations of kV &
mAs for units with 190-
240V and units with
110V.
1.25 to 1.5 kHz
9.2 kHz ± 0.3 kHz
Version 5.0
Copyright © SIEMENS LTD. All rights reserved. For internal use only
Service Instructions
Range
Adjustment
D915.P3
D915.P4
Multimobil 5C
Page 13 of 73
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Table of Contents
Troubleshooting
