ELECTOR MP-7 Manuel De L'utilisateur page 20

3.4 Measuring of the pH-value with the Water-Quality Meter MP-7
Install the pH-sensor to the meter..
• Release the sensor nut.
• Pull the already installed sensor to the bottom (never turn it).
• Remove transparent cover from conductivity sensor (if applicable).
• Stick the sensor to the meter, pay attention to the slot guide and attache with sensor nut.
• Remove moisturizing cap from sensor and do not spill the electrolyte solution.
• Rinse the sensor with water.
Switch the device on by pressing the button
The display shows pH in the first line.
Clean the sensor always with a clean cloth and water before and after usage. Dip the sensor into
the measuring cup and stir the sensor so that air bubbles are removed.
As soon as the temperature shows stable value you can read the pH-value on the display. Please
note that the automatic temperature compensation only reliably works in a range of 0 - 50°C.
Switch the device off after usage by pressing the button
After the measurement:
Clean the pH-sensor with a clean cloth and with water (distilled if possible). Reassemble the
moisturizing cap which should contain some drops of the pH-electrolyte solution.
If you want to do another measurement with the water after the pH measurement, take a new
water sample, as residues of the electrolyte solution may have contaminated the water sample.
Operation-mode key
Without function as long as the pH-sensor is installed.
Max & Min / Cache
1. Press this button to store the actual reading in the cache storage.
2. Press this button for 3-4 seconds to activate the max & min mode.
Swap between max & min by pressing this button.
3. Press again for 3-4 seconds to deactivate the max & min mode.
Page 19
Central Heating Water Test Kit
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