Step 5
Keep the “CAL”’ key depressed for more than 5 seconds until the “Hold/Pause” diode lights up and
the pH 7 diode flashes. Keep the sensor immersed in the buffer solution for 30 seconds.
Step 6
After 30 seconds the pH 7 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*
*(e.g. 11 diodes lit = 100%, if <25%, See trouble shooting guide).
Summary of Contents for pH Perfect
Page 20: ...NOTES...
Page 26: ...NOTES...
