LaMotte SMART Spectro Spectrophotometer - Manual (Page 24)

24 SMART Spectro Operator’s Manual 2.11
inner menu to the MAIN MENU by repeatedly pushing the EXIT button. Pushing
OFF at any time will turn the spectrophotometer off.
CALIBRATION
 CALIBRATE WAVELENGTH
The Calibrate Wavelength (CALIBRATE WL) mode is used to establish or
re-establish the accuracy of the wavelength selection process. Normally, the
Calibrate Wavelength procedure should be run after the SMART Spectro is
turned ON and allowed to warm up for 15 minutes or if operating conditions
(temperature, humidity, etc.) change signifi cantly.
For fi eld use, when operating with the battery, calibrate wavelength prior to
going into the fi eld using AC power. This will increase battery life in the fi eld.
Alternatively calibrate wavelength in the fi eld immediately before testing. Turn
Spectro on immediately before scanning blank. Calibrate wavelength just before
scanning blank.
1. Press ON. The LaMotte logo
screen will appear for about 2
seconds and the MAIN MENU will
appear.
MAIN MENU 12:00:01
* CALIBRATE WL
PROGRAMMED TESTS
%T/ABS
PC LINK
2. Press or to scroll to
CALIBRATE WL.
MAIN MENU 12:00:01
* CALIBRATE WL
PROGRAMMED TESTS
%T/ABS
PC LINK
3. Press *ENTER to select
CALIBRATE WL.
MAIN MENU 12:00:01
* CALIBRATE WL
PROGRAMMED TESTS
%T/ABS
PC LINK
The Calibrate Wavelength procedure takes about 1-2 minutes to be completed.
During the calibration, the Spectro will display two numbers at the bottom of the
screen. The fi rst number is fi xed. The second number will change and can have
a range of values. The microprocessor will move the grating in search of the
position that gives a very specifi c maximum light intensity. The microprocessor