Fluke Biomedical 35080B - Manual (Page 50)

35080B
Operators Manual
10-2
PROBLEMS WITH THE MODEL 35080B KVP DIVIDER
1. The power battery may be weak or dead.
Check the battery and replace it if necessary (see Section 2.1, Battery Check, and Section 10.3,
Battery Replacement).
2. The function switch on the Model 35080B kVp Divider may be in the wrong position, such as “CAL”.
Verify that the function switch is in the “RUN” position.
3. Orientation of the kVp divider may not be correct for the location of the x-ray source.
(Refer to Section 2.5, Geometry of Setup.) Turn the kVp divider upside-down for under-table x-ray
heads and right side up for above-table x-ray heads.
4. There may be an electronic fault in the kVp divider.
Check the CAL operation of the kVp divider (refer to Section 2.2, Internal Calibration Check).
10.3 Battery Replacement
The Model 35080B kVp Divider is powered by a single 9 V Eveready type 522 alkaline battery. Battery
life is approximately 60 hours. The battery condition can be checked without opening the instrument
case; with the function switch in the “BAT CHK” position, a digital voltmeter (DVM) can be connected to
the output connector.
Do not leave the function switch in the “BAT CHK”
position, as this will decrease battery life.
If the battery voltage drops below 7.0 V, the battery should be replaced, as the remaining life of the
battery is quite limited. If the battery voltage is already below 6.5 volts when checked, the battery must be
replaced for proper operation of the kVp divider.
To replace the battery, remove the screw from the cover on the bottom of the kVp divider (refer to Figure
10-1). Lift the cover from the instrument case. Place your hand over the battery compartment and roll the
instrument upright, letting the battery drop into your hand.
Carefully disconnect the battery terminal from the used battery and replace it with a fresh 9 V alkaline
battery (Eveready type 522). Slip the battery back into the compartment and replace the cover. Note that
the leading edge of the cover must be inserted under the lip of the instrument case before it is properly
seated (refer to Figure 10-1). Align the hole in the cover with the threaded hole in the case and reinsert
the screw.
NOTE