Servicing
Instruction Manual AquaMaster
12745E/4
99
The following describes checking the lenses for soiling and cleaning the optics:
WORKSTEP
ADDITIONAL INFO / IMAGES
1.
1.1: If an AquaScat 2 WTM / HT is present,
carry out an adjustment as described in Sec-
tion 8.2.5.
If an AquaScat 2 WTM A is present, carry out
an automatic adjustment as described in Sec-
tion 8.2.4.
1.2: In the
Local AquaScat
2/Recalibration/C1 Turb
menu, check the
current calibration factor in the
Curr. corr.
menu. The factory setting is 1.00.
If the difference is greater than 10% (i.e. <
0.90 or > 1.10), then this may be due to soil-
ing of the lens on the transmitter and/or re-
ceiver.
In this case, please note the instructions in
step 5 and 6.
2.
Interrupt the sample supply to the photome-
ter.
3.
Interrupt the service voltage to the photome-
ter.
4.
Remove the optics unit of the photometer
and fasten onto the docking station.
Section 8.2.1
5.
Clean the transmitter:
5.1: Loosen the two screws (circles) and re-
move the transmitter.
5.2: Check for soiling of the lens (arrow).
If
no
soiling can be determined and the
difference in calibration factor is
not
greater than 10%, proceed with step 5.4.
If soiling can be determined
and/or
the
difference in calibration factor is greater
than 10%, proceed with step 5.3.
5.3: Clean the lens (arrow) on the transmitter
with a cotton-tipped applicator moistened
with ethanol.
5.4: After cleaning, place the transmitter on
the positioning pins (circles) and fasten with
the two screws.
