Halogen MP5A, Operation & Maintenance Manual, Page: 14 / 45

MP5A Operation and Maintenance Manual
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Copyright © 2023 ‐ 2024 Halogen Systems, Inc. All rights reserved worldwide.
Rev.: 4.02
14
Entering the Key Code will unlock the calibration menu and Sections 6 and 7 can be followed to adjust calibrations.
5.3. Key Code
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5.4. pH Calibration
The MP5 pH sensor uses a no ‐ maintenance solid gel in its pH sensor cartridge. It also uses DryGlass which is stored dry and
wets out within 2 minutes after water immersion. The Self ‐ Cleaning function keeps the glass and the porous junction clean.
As a result, the calibration is very stable. If calibration is required, the following procedure will adjust the pH reading.
5.4.1 Known Value
To adjust the Known pH value, follow these steps:
Press MENU button, then select CALIBRATE using DOWN arrow, then SELECT
Select Known pH and cursor will move to pH, adjust the sensor value to the measured reading.
It will take one cycle to reflect the new calibration.
5.5. Entering a Manual Fixed pH Value
If your pH does not change, you can select a fixed pH that the sensor will use for pH compentation. Enable this in
Measurement Options 11.10
The manual level to be used is entered in the pH calibration screen.
C A L I B R A T E * * * *
E N T E R K E Y C O D E
Enter Key Code
C H L
> p H
C a l i b r a t i o n d e f a u l t
Select pH
> S i n g l e P o i n t C a l
E n t e r M a n u a l p H
Calibrate pH
> K n o w n p H 7 . 6 4
P H Z 0 . 0 ‐ 5 9 . 2
Calibrate pH