Fluke Biomedical 35080B - Manual (Page 49)

Maintenance
Cleaning the Instrument
10
10-1
Section 10
Maintenance
10.1 Cleaning the Instrument
To clean the exterior of the instrument, follow these steps:
1. Turn off the instrument and disconnect the output connector.
2. Moisten a soft cleaning cloth with a solution of three parts water and one part liquid dishwashing
detergent.
Do not soak the cloth in the solution; you must not let the solution drip inside the instrument.
3. Use the moistened cloth to wipe the instrument's exterior cover.
4. Let the instrument dry completely before using.
10.2 Troubleshooting
Difficulties experienced by the Model 35080B kVp Divider user may be caused by problems from one or
more of the three sources described below: problems with the storage oscilloscope used to obtain the kV
reading; problems with the x-ray machine; and either improper technique or an electronic fault with the
kVp divider. Typically, the existence of a problem would be signaled by one of the following:
1. No waveform on the oscilloscope trace;
2. A strange or unexpected waveform on the oscilloscope trace.
The information given below is provided to direct the user to the most likely sources of minor problems; it
is not meant to provide all solutions to all possible problems.
PROBLEMS WITH THE OSCILLOSCOPE
1. If the oscilloscope settings for CAL and ZERO are not correct, a waveform may not be displayed, or
an unusual or unexpected waveform may be observed (refer to Section 4.4).
2. The oscilloscope may be grounded or inoperative.
Check the operation of the oscilloscope.
3. The oscilloscope trigger may be set improperly.
PROBLEMS WITH THE X-RAY MACHINE
1. The x-ray machine may be inoperative.
Verify with a dosimeter that the x-ray machine is functioning.
2. The x-ray machine may be arcing. Arcing is characterized by erratic spikes superimposed on the
kV waveform.
3. The x-ray machine may be badly adjusted.