Xylem wtw MIQ/IDS, Руководство по эксплуатации

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MIQ/IDS pH
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ba77277d01 01/2024
4.2.3 Calibrating with
CAL TEC AUTO
Display indications when calibrating with CAL TEC AUTO
4.2.4 Calibrating with
CAL CON 2P
Display indications during 2-point calibration with CAL CON 2P
Step 3:
Bring the sensor into the measuring position.
After the calibration procedure has been finished the mainte
-
nance condition has to be switched off manually. More detailed
information on the maintenance condition is given in the
IQ S
ENSOR
N
ET
system operating manual.
Display Explanation
* Have any two technical buffer
solutions ready.
You can use two different Technical buffer
solutions for this.
Confirm with
<OK>
.
* Rinse the sensor.
* Immerse the sensor in the first
buffer solution.
* Wait for a stable measured
value.
Follow the instructions on the display. As
soon as the measured value is stable, the
next display indication appears.
* Rinse the sensor.
* Immerse the sensor in the sec
-
ond buffer solution.
* Wait for a stable measured
value.
Follow the instructions on the display. As
soon as the measured value is stable, the
next display indication appears.
Successfully calibrated.
End of the CAL_TEC_AUTO cali
-
bration.
The values determined for
Slope
and
Asymmetry potential
are displayed.
Calibration is finished.
Confirm with
<OK>
.
The display returns to the measured value
display.
Display Explanation
* Have buffer pH 7.0 ± 0.5 and
any second buffer solution
ready.
For this calibration procedure, use two buf
-
fer solutions whose pH value is known at the
current temperature:

First buffer solution pH 7.0 ± 0.5

Second buffer solution: arbitrary