Section 11 Service Instructions
95
11.4.4 Service Functions
The service menu structure shows the possible test settings and
switch functions. In addition to defaulted pulse rates that are used
to check the output current, you can check the relay and external
switch functions, and start an automatic plateau recording of the
NaI crystal-multiplier assembly. The result can be read out from
the plateau recording submenu and plotted as a curve.
Moreover, you can preset the high voltage for the detector or turn
off the automatic high voltage control. In another menu you can
calibrate the D/A-converter to the exact output current.
See also Service Menu on page 150.
Test calculation :
Test cps
You can enter any pulse rate within the calibration range to simu-
late an output current and the weight per area.
Result output
The output current and the respective weight per area is displayed
as a result of the defaulted pulse rate
I/O Test
Curr. Output
You can set any output current within the range.
To test the connected instruments and the current output, you can
set any output current between 0 and 22 mA .
Curr. Input
Shows the current measured at the current input . The input can
be checked using a test power source.
Relay 1/2/3
The relays can be switched to test the signal circuits.
Input 1/2/3
Shows if the inputs are open or closed.
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