Servicing
Instruction Manual AquaScat 2 P
11838E/2
51
WORKSTEP
PROCEDURE
4. Fill the measuring cell with
water.
For turbidity values < 0.5 FNU
If the water turbidity is less than 0.5 FNU, establish the
sample feed and fill the measuring cell with water.
For turbidity values > 0.5 FNU
If the water turbidity is
more
than 0.5 FNU, fill the
measuring cell with filtered water rather than process
water.
5. Switch photometer to service
operation.
Section 7.5
6. Prepare adjustment.
6.1: Press the
Recalibration
button and then the
C1
Turb
button.
6.2: Check whether the saved
Nominal value
match-
es the specification on the checking unit.
7. Perform adjustment.
Press the
initiate…
button and wait.
If the adjustment was successful, the instrument re-
ports with
Adjustment OK
.
If the adjustment was
not
successful, it is indicated
with
Adjustment fault
. In this case, check the points
in the following list one after the other:
Cleanliness of the checking unit
Correct checking unit used.
Set point does not correspond to the value of
the checking unit.
If the check could not be successfully complet-
ed, contact your country representative.
Section 10
8. Remove checking unit.
8.1: Empty the measuring cell.
8.2: Remove the measuring cell plate (Figure 20, 4)
again and disassemble the checking unit (Figure 20, 1)
by pressing the release device (A).
8.3: Insert the measuring cell plate (Figure 20, 4) into
the measuring cell and fasten the screw (Figure 20, 3).
8.4: Clean the checking unit and let it dry.
9. The instrument can now be
operated again.
A new recalibration factor is determined during
recalibration. The deviation from the original state is
displayed under
Curr. corr.
.
