wtw photoLab 6600 UV-VIS Instrucciones De Operación página 84

What to do if ...
Cleaning the
detector lens
Instrument does not
react to keystroke
Acoustic signal on
keystroke
Measuring range
undercut or
exceeded
82
1
6.2 Error causes and remedies
Cause
– Operating condition undefined or
EMC load unallowed
Cause
– The key does not have any
function in the current operating
state
Cause
– Method not suitable
Note
In Concentration mode you can display the current absorbance value as
an additional information ([Setup]/Display absorbance).
photoLab
The detector lens is on the front left
side of the rectangular cell shaft
(pos. 1).
1 Switch off the photometer.
1 Cut off one end of a customary
cotton swab (approx. 2 cm).
2 Grasp the cut-off end with the tip
of a pair of tweezers or small
pliers. Clean the lens with the dry
head of the swab. To do so, move
the head from the center of the
lens outward in circles. If there are
persistent coatings, moisten the
swab with a little deionized water
or isopropanol.
Remedy
– Processor reset:
Press the <ON/OFF> and
<ESC> key simultaneously.
Remedy
– Press a different key
Remedy
– Select method with suitable
measuring range
– Dilute the sample
ba75850e04
®
6600 UV-VIS
02/2011