Step 9
After 30 seconds the pH 4 diode will stop flashing, indicating that the appliance has recognized the
buffer solution. Keep the sensor immersed for a further 30 seconds. The appliance indicates the
quality of the test. If the “Alarm/Alarme” diode lights up, see section “Indicator light illumination”.
Step 10
Rinse the sensor in clean water then shake gently to remove excess water and replace it in its sensor
holder (it should not touch the other side of the pipe).
Summary of Contents for pH Perfect
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