Bluelab pH Controller Connect Manual Manuel d'utilisateur télécharger pdf (Page 11)

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14.0 pH calibration cont.

To calibrate the pH

Clean pH probe tip.

See section 26.0 (the pH probe does not

require cleaning before the ﬁ rst use).

The calibration default is set at two point

calibration. If a three point calibration is

required:

a) Press ‘menu’.

b) Press ‘’ to ﬁ nd ‘2/3 point cal’. Press ‘enter’.

c) Press ‘’ to select ‘3’. Press ‘enter’. When

‘saved’ is displayed on screen, three point

calibration is now available.

In separate plastic containers, prepare a

small amount of: fresh tap water, pH 7.0, pH

4.0 and/or pH 10.0 calibration solutions.

pH 7.0 calibration

a) Ensure the pH controller connect is plugged in.

b) Press and hold ‘cal’ for three seconds. ‘pH 7

Calibrate’ will be displayed.

c) Place the clean pH probe tip in the pH 7.0

calibration solution. Press ‘cal’.

d) Calibration is complete when all the ‘’s

on the screen become solid. The screen

will display ‘OK’ and the ‘pH 7’ indicator

will appear to indicate successful pH 7.0

calibration.

e) Now you can calibrate to pH 4.0 and/or pH

10.0

pH 4.0 and/or pH 10.0 calibration

a) Rinse the probe tip in fresh tap water,

shake off excess water. Place the clean

pH probe tip in either pH 4.0 or pH 10.0

calibration solution. Press ‘cal’.

b) Calibration is complete when all the ‘’s

on the screen become solid. The screen

will display ‘OK’ and the ‘pH 4’ or ‘pH 10’

indicator will appear to indicate successful pH

calibration.

c) If you require three point calibration, repeat

‘5a’ and ‘5b’ using the pH 4.0 or pH 10.0,

whichever solution was not used.

d) The pH controller connect is now

calibrated, and ready for use.

After pH calibration, the pH controller

connect reverts to ‘Monitor’ mode.

Change to ‘Control’ mode if required.

NOTE: If ‘Failed <e>’ is displayed on the screen during

calibration, see section 27.0 Troubleshooting.

press cal button

successful

pH 7, 4 and pH 10

calibration

successful pH 7 calibration

ready for pH 4 or pH 10 calibration

pH 7.0

calibration

solution

pH 4.0 or

pH 10.0

calibration

solution

clean the pH probe

rinse in tap water

successful

pH 7 and pH 4

calibration

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Bluelab pH Controller Connect Manual Manuel d'utilisateur Page 11

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