6. Operation
DEPOLOX® Pool Compact
64
EN
6.6
Calibration
When calibrating the measurements, variati-
ons in the calibration solutions, buffer soluti-
ons or comparative measurements are
adjusted. Calibration is performed for new
devices (first commissioning) and to recali-
brate existing measuring instruments in accor-
dance with maintenance regulations (chapter
6.3.2 and 5.11.1).
6.6.1 Chlorine calibration
During calibration for free chlorine, a zero
point calibration and a measured value cali-
bration (DPD1) must be carried out.
Zero point calibration
1 Press the
symbol.
2 Press
the
Calibration menu.
3 Tap the measurement “Chlorine”.
4 Press the parameter “Zero point”.
5 Close the ball valve on the sample water
inlet.
6 Wait until the displayed chlorine value no
longer changes.
7 Press the “Calibration” button. An input
field opens.
8 Press "Enter" to save the zero point.
9 Open the ball valve on the sample water
inlet.
Measuring value calibration (DPD)
10 After zero point calibration, wait at least 2
minutes.
11 Open the sample extraction unit (drain)
by approximately 1 turn and extract a spe-
cimen of the sample water.
12 Determine the content of free chlorine in
the sample using a photometer.
13 Press the parameter “DPD”.
14 Press the “Calibration” button. An input
field opens.
15 Use the input keys to enter the determi-
ned value.
16 Press "Enter" to save the entry.
This concludes the calibration for free chlo-
rine.
ATTENTION
Damage to sensor!
Electrodes are highly sensitive! Do not soil
or damage! Comply with the safety data
sheets for the buffer solutions or calibration
solutions.
NOTICE
•
Calibration must be carried out on first
commissioning.
•
The calibration intervals are defined
depending on the area of application
and water quality.
•
Please observe the prescribed mainte-
nance intervals. (chapter 7.1).
•
Before calibration of the pH or redox
value, the ball valves on the sample
water inlet and sample water outlet
must be closed and the pressure relea-
sed.
•
Open the ball valves again after calibrat-
ion.
NOTICE
To prevent non-permissible control signals
being output during calibration, the "Hold
function" in the system menu should be set
to "On". mA-outputs and controller outputs
then remain constant as long as a calibrat-
ion menu is open.
NOTICE
Make sure that the chlorine sensor is firmly
screwed in. Otherwise the measurement
accuracy will be affected by inhomogeneous
flow and inadequate sand cleaning.
When the sample water supply has been
stopped, the display first drops rapidly, and
after approximately one minute slowly
approaches zero. During first commissio-
ning, it is essential to wait for 5 minutes,
even if the display shows “0.00” or flashes
after a few seconds.
