User manual

B Menus
B.1 Check menus
B.1.1 Checking autozero level
The module internal absorbance value for autozero can be checked
to test the consistency of buffers.
1 Select menu
Check and press OK.
2 Select sub menu
Check Autozero. The autozero absorbance
value for the used wavelength is shown.
B.1.2 Checking lamp run time
The lamp run time can be checked to determine the need for lamp
replacement. Run times for both Hg and Zn lamps are monitored.
1 Select menu
Check and press OK.
2 Select sub menu
Check Lamp Run Time.
B.1.3 Checking lamp intensity
The lamp intensity can be checked to determine the status of the
lamp used.
1 Select menu Check and press OK.
2 Select sub menu
Check Lamp Intensity.
B.1.4 Checking recorder
The function of a connected chart recorder can be tested.
1 Select menu
Check and press OK.
2 Select sub menu
Check Recorder and press OK.
3 Start the test by selecting
on and press OK.
The test will ramp the signal on each
channel up to 1 V and then decrease
the signal in 10% steps back to 0 V.
The test is run continuously. Compare
the diagram of the chart recorder
with the figure.
4 Stop the test by pressing
OK or ESC.
B.1.5 Checking service mode
Service information relevant to the module can be checked.
Information may not be available in all menus.
1 Select main menu
Check and press OK.
2 Select sub menu
Check Service Mode and press OK.
Check Service Mode
1 V
Signal to recorder
0 V
Check Recorder
Please wait!
Check Recorder
Check Lamp Intensity
Check Lamp Run Time
Hg 2300h Zn 340h
Check Autozero
AZ 0.00006 AU
37
Monitor UPC-900
User Manual 18-1125-55 Edition AE
Reference information B