Knauer K-2600 Handbuch Seite 18

18
SOP 3
Press ⊲ to go to field λ1. Enter desired wavelength. Move cursor
4.
to field λ2 and enter your second desired wavelength. The
display should resemble section B in Fig. 16 on page 19.
Press ∇ to create an new program. The display should resemble
5.
section C in Fig. 16 with the blinking cursor on the first asterisk.
Press 1 and 0 and then ⊲ to define time step 10.0 min. Enter
6.
field λ1 and put in 240 nm and complete entering by pressing ∇.
The value for λ2 (254 nm) is kept constant as long as no changes
are made.
7. Repeat the last two steps, define time step 20.0 min and enter
280 nm. The display should resemble section D in Fig. 16.
To run a program it must be loaded, see chapter „Program
Execution" on page 19.
Programming events for control of a fraction collector
Use this instruction to control a fraction collector via the K–2600 UV
detectors EVENT socket using signal level and a defined time window.
1. Enter the SETUP menu and proceed to the window FRACTION,
see Fig. 9 on page 13.
2. Enter the desired value for the signal level, e.g. 0.32 AU, the
delay volume if needed, and select E1 for relay output.
3. Return to the operation screen
4. Move cursor to field Edit Prog, press any numeric key to generat
a identifyer for you new program. Press ∇ to confirm and to enter
the edit mode for the new program.
5. At the time step 0 min the Events-field rests unchanged. At time
5 min program Events 1 0, see Fig. 17 on page 20 and prepare
deactivating of the event at 10 min by entering 0 0 again.
Event 1 (relay output) will be enabled from 5 to 10 minutes. Any peaks
within the time window exceeding the signal level (0.32 in this example)
defined in the SETUP menu leads to generation of a event at the signal
outputs.
Peaks exceeding the signal level between 0 and 5 minutes will not
produce an event signal.
The value for level chosen in the SETUP menu, will always apply
for all programs, it cannot be set individually for single programs.
Operating the Photometer