28
Operation
KNAUER
10D User Manual V7670, Version 2.3
Checking on the Deuterium Lamp
Note
The deuterium lamp should be checked on a regular basis.
According to Good Laboratory Practice (GLP), a deuterium lamp
should not be operated for longer than 2000 operating hours.
Displaying Operating Hours
Prerequisite
Status display is active.
Next steps
If the deuterium lamp has been operating for approximately
2000 hours consider lamp replacement.
Using the Analog Port
To use the analog port for controlling the detector, you have to
set a zero point and enter a scaling value.
Setting the Zero Point
The zero point is predefined by the applied voltage.
Prerequisite
Device has been connected to GROUND.
ANALOG port has been selected.
Process
Figure
Procedure
1. Keep left arrow key
pressed. Press right
arrow key until the cor-
rect display appears.
2. Let go of left arrow key.
Fig. 18
Display operating hours
of lamp
Result
The number of operating hours is displayed and afterwards
the status display appears.
1234.1h
GLP-lamp
Process
Figure
Procedure
1. Keep left arrow key
pressed. Press right
arrow key until the cor-
rect display appears.
2. Let go of the arrow
keys.
3. Press Autozero.
Fig. 19
Display Analog-In set
zero
Result
The applied voltage is set as the zero point and is adjusted to
0 nm wavelength.
set-zero
A-IN
