DEPOLOX
®
Pool Operation
WT.050.570.000.DE.IM.0714 65
1.3
The test configuration for the sensors which are calibrated outside the
cell body is shown in Fig. 19 as an example.
Fig. 19 Test configuration (example)
1 Ball valve on sample water inlet
(on the pressurised version also on the sample water drain)
2 Lower clip
3 Beaker
4 Sensor
5 Top clip with electrode mount
Chlorine calibration During chlorine calibration each chlorine sensor (free chorine or total
chlorine) must be calibrated separately.
Free chlorine
(Cl
2
)
During calibration for free chlorine a zero point calibration and a
measurement value calibration (DPD1) must be performed.
Zero point calibration 1. Starting from the basic display in the main menu select the "Calib-
ration" area of operation.
2. Select the menu item "Cl
2
".
The window "Calibration Cl
2
" (display 2.1.1) appears on the graphic
display.
3. Select the parameter "Cal.zero point" and confirm the selection.
4. Close the ball valve on the sample water inlet.
NOTE
When the sample water supply has been stopped, the display first
drops rapidly, and after approximately one minute only slowly towards
zero. During commissioning it is essential to wait for 5 minutes, even if
the display should show "0.00" or flash after a few seconds.
5. Wait until the displayed chlorine value no longer changes.
6. Press the "ENTER" softkey to set the display to "0.00".
7. Open the ball valve on the sample water inlet.
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