Operating the Photometer
11
The SETUP Menu
In the SETUP menu parameters for the operation of the K–2600 UV
detector can be adjusted. These parameters comprise values for
operation of the instrument.
DATE: 11.11.99 dd.mm.yy
TIME:
08.31.10 hh.mm.ss
TIME CONSTANT:
1s
AUTO CALIBRATION
LAMP: Deuterium
ON
no:001
00457.1
SIGNAL
sig:0.1485
absorbtion
ref:0.0725
SCAN OUT:
Speed:5 steps/s
ANALOG OUT FULL SCALE:
1 au
-> 1V
ANALOG OUT OFFSETS:
+000.00mV +000.00mV
FRACTION:
delay
000.0s
-- level:
0.0000
au
CONTROL:
KNAUER NET
Baud rate 9600
ANALOG IN:
Set Zero
actual_ :000
Main Menu
Setup
GLP
Fig. 6
Block diagramm overview SETUP menu
TIME CONSTANT
You can select smoothing the signal with a time filter. The value can be
chosen between
0,1; 0,2; 0,5; 1; 2; 5
and
10
seconds. The bigger the
value for the time constant, the more the signal is smoothened. For
most analytical purposes, a time constant of
1s
is best suited.
AUTO CALIBRATION
(Second line in the window TIME CONSTANT):
Moving to this field and pressing or starts the procedure for the
calibration of the wavelength scale. It searches automatically for
reference points within the spectra of the lamp for reliability and
reproducibility of the wavelength. The points used for calibration are the
zero order reflection of the grating (000 nm) and the H
α
spectral line of
Deuterium (656 nm). Auto calibration is performed automatically on
power on.
LAMP
You can specify the lamp type (
Deuterium/Halogen
). Changing the
lamp type resets the lamps working time after a control question, the
lamp number is incremented. The number of the lamp cannot be edited.
In the field with working time of the actual lamp you can reset this GLP
value after a control question. The lamp number is then incremented.
This function should be used only when replacing a deuterium lamp.
The
ON/OFF
field enables you to switch off the lamp without switching
off the instrument.
Summary of Contents for WellChrom K-2600
Page 36: ......
