A SIATA TECHNICAL BULLETTIN: 4/98 - Feb 10th 1998
Aqua Ionic Plus – AI-PLUS1/05
Conductivity probe adjustment
There are two methods of adjusting the conductivity value detect by the probe of the
Aqua Ionic Plus. The first method is the comparison between the conductivity value
detect by a pattern instrument and the conductivity value read by Aqua Ionic Plus.
The second method is the adjustment of the value detect on the Aqua Ionic Plus when
the conductivity probe is simulated by a resistor.
When the first method is selected, a conductivity probe must be connected to the inlet
63 & 64 on the Aqua Ionic Plus. Then, a pattern instrument must be put into the water.
A conductivity value about 100S is recommended. Please, take note of the
conductivity value read by your pattern instrument. Then, Aqua Ionic Plus conductivity
probe must be put in the same water, and the operator can use the trimmer signed
“Probe adjustment” in the figure, till he reads on the Aqua Ionic Plus display the same
conductivity value read by the pattern instrument.
When the second method is selected, a resistor must be connected to the inlet 63 & 64
on the Aqua Ionic Plus. The value of the resistor must be 10 K (This value is
identified by following colours: Brown, Black, Orange, and a fourth colour that can be
gold or silver according to the precision of the resistor, respectively 5% or 10%) in
order to read 100S on the Aqua Ionic Plus display. The operator can use the trimmer
signed “Probe adjustment” in the figure till he reads 0100 on the Aqua Ionic Plus
display. The disadvantage of this method is that the measurement error introduced by
the probe is not considered.
The trimmer signed “Zero adjustment” in the figure can’t be used, otherwise the probe
adjustment is not possible.
Zero adjustment
Probe adjustment