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Keep pressing Enter button for 3 seconds to
enter in the main Menu. Move the cursor to
Calibration and press Enter
Move the cursor to Calibration CL and press
Enter.
Move the cursor to Offset and press Enter.
Edit (using
buttons) the ppm reading
value of 0.00ppm and press Enter.
GAIN CALIBRATION
Switch off V-MS and reconnect the 4-pin connector of FIG. 7 above to allow V-MS to read the measurement by the
probe of chlorine. Pay attention to the color of the cables.
Attention to the color of the wires!!
Follows the instruction of the figure of the previous page:
22= BROWN cable
23= BLACK cable
24= BLUE cable
25= WHITE cable
Switch on V-MS.
RECOMMENDATIONS: before doing GAIN calibration, PAY ATTENTION TO THE FOLLOWING INSTRUCTIONS:
1) it is necessary to stabilize the water flow by turning the knob regulation till the floater stays in the upper position (60l/h).
2) Before calibrating the GAIN of the chlorine probe, stabilize the pH at the working conditions.(We recommend to choose
a value from 7.0 to 7.3pH).
3) It is necessary to do the Chlorine gain calibration at concentration values nearest possible to the desired setpoint. For
example if the chlorine concentration desired is 1.20ppM it is strictly recommended to do the gain calibration with water in
those conditions. Use a DPD1 photometric test to check the chlorine concentration in the water sample taken from the Tap
(see the figure here below ).
Rev 6.0
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