Polymetron SODIMAT 9073, Instruction Manual

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SODIMAT - Model 9073
6-6
Note 1 : - Pressing SELECT interrups the calibration
- Pressing ENTER validates the measurement before the required time (if the measurement
is considered stable).
Note 2 : - C251 and C261 permit to control the new offset and slope values.
- It is possible to take a note of these values in Appendix B to check the electrode
evolution.
223 0 Low frequency of the calibration pump for the calibration
1 High frequency of the calibration pump for the calibration
with one point solution
with one point solution
225 --- Concentration value of the calibration solution
231 --- Value of the concentration addition 1 calculated for 4 l/h
and 25
E
C. The value taken into account is the value of
the real addition measured by the instrument
241 --- Value of the concentration addition 2 calculated for 4 l/h
and 25
E
C. The value taken into account is the value of
the real addition measured by the instrument
251 [0.0*] Drift value of the reference potential at 25
E
C
261 [100*] Slope value at 25
E
C in % of the theoric slope (59,16 mV
per decade)
271 [20*] Maximum time by calibration point in minutes
Calibration procedure
a) Automatic desactivated calibration (C215 = 0) :
To launch the calibration manually, press SELECT to leave the programmation mode, press
the lower key till CAL is displayed. Press ENTER, SOL1 appears (first addition), press
ENTER to validate. The pump injects the calibration solution in the sample.
After the time programmed in C271, the measurement of the first calibration point is taken
into account. SOL2 is displayed. Press ENTER.
After the time programmed in C271, the measurement in C271 of the second calibration
point is taken into account.
The analyser is then able to calculate the new offset and slope. If any big difference appears
after the calculation compared to the theoric values, one of the error messages ER24/25/26
is displayed.
b) Automatic activated calibration (C215 = 1)
To launch the calibration, press SELECT to leave the programmation mode. The analyser
executes automatically the calibration cycle with a frequency programmed in C217.