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Z31980_00_03
Configuration
installation.
1. Remove sample or activate the sample lift and note down the "empty" Spin Voltage.
2. Now insert or lower the sample and switch the spin on (either from the BSMS panel
or from the web server)
3. Repeatedly read the Spin Voltage and note down the two values that can be read
while the sample is spinning.
4. Now set the "sample down threshold voltage" to about half way between the lower
of the two "black/white" spin voltages, and the "empty" spin voltage.
You can test if everything is set correctly. The spin should not cut off during normal oper-
ation, but should cut off immediately when the lift is activated.
i
Note: The "Spin DC Voltage Counter" sets the number of times the value has to be
below the threshold, before the safety shut off is activated. It should be set to 10 to avoid
the spin cutting off on a single bad reading.
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Note: When the spin safety has been triggered, the spin has to be restarted manually,
when the lift air has been turned off.
7.4.6.4 Calibrating and Measuring the Helium Level
When the measure button is pressed, the system lets a fixed measuring current flow
through the measurement sensor for a time given by runtime x 32ms. The default is 100
x 32ms, i.e. 3.2 seconds.
After this time has elapsed, you can press “get value”. If the system has been properly
calibrated, this will show the helium fill level in %
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