Instruction Manual ColorPlus 2
Servicing
88
13045E/3
9.9
Recalibrating the photometer
Recalibrating the photometer can result in deviations from the previous measuring value as
the instrument is newly reset to a reference value (e.g. distilled water).
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
Fill the measuring cell with a zero medium (e.g.
DI Water).
Pay attention to the attached document on
confirming calibration here.
There must be no air bubbles
in the measuring cell during recali-
bration (low flow, light counter
pressure).
2.
2.1: Press the
Menu
button.
2.2: Set the access code and confirm with
OK
.
Factory setting is
0
.
2.3: Select the
Recalibration
menu and then
press
C1
. Check whether the nominal value is
correct.
On instruments with several channels, press
the
ESC
button and check the nominal value
on all other channels.
Go back to the
C1
menu.
Typically, the nominal value is
set to
0.00 E
on instruments that
measure in absorbance (Meas.
channels\Channel n\Lin/Log on Log).
The nominal value is set to
100.0 %
on instruments that measure in
transmittance (Meas. chan-
nels\Channel n\Lin/Log on Lin).
2.4: Press the
initiate
button. Recalibration of
all channels is made simultaneously.
If the adjustment was successful, this is con-
firmed with
Adjustment OK
. Recalibration is
now complete.
If the adjustment was not successful, this is in-
dicated with
Adjust. fault
. In this case, check
the points in the following list one after the
other:
Instrument mounted correctly?
Soiling of the instrument too heavy?
Air bubbles in the measuring cell?
Correct nominal values set?
Correct zero medium used?
Misplaced checking unit, see Section 9.11
If the check could not be suc-
cessfully completed, contact your
country representative.
