DisplayActionStep
Start the test, press OK. The test will ramp the chan-
nel up to 1 V and then decrease the signal in 10%
steps back to 0 V. The test is run continuously. Com-
pare the diagram of the chart recorder with the im-
age below.
3
Stop the test by pressing Esc.4
Light intensity
This menu shows the voltages generated at the light detectors. These voltages are pro-
portional to the light intensities in each channel. The R-value gives an indication of the
condition of the lamp, filter and optical fibers.
DisplayActionStep
Select menu Check, press OK.1
Select menu Light Intensity.
If the R-value is < 750 mV, check filter used time.
Change filter if the used time is > 2500 hours. If the
R-value still is < 750 mV after replacing filter, contact
GE.
2
Filter used time
This menu shows how many hours the filter has been used, i.e. the time in running mode.
There is one time counter for each filter wavelength.
DisplayActionStep
Select menu Check, press OK.1
Monitor UVis-920 Operating Instructions 29055049 AD 51
5 Operation
5.9 Check menu
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