Programming Instructions

Programming screen « INSTALLATION » Page 50/74
f) Offset calibration
 Wait for the sensor stabilization
 Enter the calibration value
 Press « SAVE »
g) Slope calibration
 Wait for the sensor stabilization
 Enter the calibration value
 Press « SAVE »
h) Erasing the calibration
 Press « Erase »
A confirmation request will be displayed.
There is no « analysis » of measurement value, erasure can be performed even if the sensor is unstable
or absent.
i) 2 points calibration (pH)
2 points calibration is a « assisted » offset and slope calibration, and only available on pH sensors. It’s made
using buffer solutions.
The procedure is carried out in two steps with two solutions.
- Step 1:
 Put the pH sensor in solution 1 (Ex: pH7)
 Wait for the sensor stabilization
 The controller automatically enters the 7.00 value in calibration value, if your solution has a
different value, enter the value of your solution.
 Press « SAVE »
- Step 2 :
 Put the pH sensor in solution 2 (Ex : pH4)
 Wait for the sensor stabilization
 The controller automatically enters the 4.00 value in calibration value, if your solution has a
different value, enter the value of your solution.
 Press « SAVE »
j) Temperature compensation (pH)
Temperature has a more or less influence on the pH, depending on the pH deviation from 7 and the
temperature deviation from 25°C.
Example :
If you calibrate the pH with a pH4 solution at a temperature of 10°C, the difference between the
uncompensated and compensated pH value is approximately 0.2pH.
This discrepancy can be corrected with the temperature compensation function..
 Type None
- Compensation mode selection, this selection button displays the
selected mode information (
None). Press to change it.
Compensation
This choice will be valid as
long as you stay in the
calibration of this sensor
Type None