Operation
12
4. Operation
4.1. pH measurement
Switch on the unit. The display shows:
Connect the pH electrode to the BNC plug.
Attention
: during pH measurement no other
probe can be connected to the 8-pin plug, except
external NTC-temperature sensor.
Insert the pH electrode into the soil / substrate
(use the piercing pin) or immerse into the
solution and stir slightly.
After approx. 10 seconds the measured value
will be stable and can be read.
Measured
values
outside
the
normal
measurement range will be displayed as "-----".
If an external NTC-temperature sensor is
connected and in the same solution, pH value
will be compensated to 25°C and displayed
accordingly.
Measurements without temperature sensor are
displayed as "-----°C" and the pH value is not
temperature-compensated.
Clean pH electrode with a dry tissue.
Further measurements can be carried out
immediately.
ON / OFF
