Materials Required; Procedure; Calibrating The Redox Sensor (Ees Pro Only); Frequency Of Calibration - Bwt Ees Notice De Montage

10.2.2 Materials required

Calibration requires the following materials:
• Glass of tap water, or a tap nearby
• Buffer solution pH = 7
• Buffer solution pH = 4

10.2.3 Procedure

• Start the device leaving the filtration pump off (ST-BY mode), close the valves of the by-pass loop on which
the tee housing the sensors is mounted. (place a bucket under the tee to collect any water)
• Remove the pH sensor, rinse it and shake it to remove any drops without wiping it, then immerse it in a
buffer solution pH = 7
• Wait 2 minutes, moving the sensor gently in the solution every now and then.
• Switch the device off (button), then press M to begin calibration
Wait for the read out to stabilise, and press M to adjust the sensor to pH = 7
•
• Remove the pH sensor, rinse it, shake it to remove any drops (do not wipe it), then immerse it in a pH 4
buffer solution.
• Wait for the read out to stabilise, and press M to adjust the sensor to pH = 4
The message DONE is displayed, confirming that calibration is complete.
•
10.3

Calibrating the Redox sensor (EES Pro only)

This operation requires both the pH and Redox sensors.
!
Check first that the sensors are clean, then rrinse with clear water, this will ensure that the calibration
process is more accurate.

10.3.1 Frequency of calibration

The redox sensor should be calibrated:
• The first time the device is put into operation,
• upon reopening the pool after winterizing,
• Approximately every 6 weeks during the pool season.
10.3.2 Materials required
Calibration requires the following materials:
• Glass of tap water, or a tap nearby
• Redox buffer solution
10.3.3 Procedure
• Start the device leaving the filtration pump off (ST-BY mode), close the valves of the by-pass loop on which
the tee housing the sensors is mounted. (place a bucket under the tee to collect any water)
Remove the pH and the Redox sensor, rinse them and shake them to remove any drops (do not wipe),
•
then immerse them in the Redox buffer solution and move them gently in the solution.
• Wait approximately 1 minute
• Switch the device off (
Press M to enter calibration mode.
•
• When ORP is displayed, press the
• Press the button M again to begin calibration.
• Wait for the read out to stabilise, then, using the arrow keys, adjust this value to that indicated on the redox
buffer solution bottle.
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2021/02 - Indice de révision : E - Code : 29650
button), the LCD display will show "OFF".
button.
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