Xylem wtw MIQ/IDS, Руководство по эксплуатации

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pH MIQ/IDS
20
ba77277d01 01/2024
The calibration history provides the following information:
4.2.8 Reactivating a valid calibration
The Sentix
®
945 provides a feature with witch you can reactivate the last valid
calibration if necessary. Thus you can immediately continue to measure if a cali-
bration failed.
Reactivating the cal
-
ibration data
4.3 Settings
Carrying out set
-
tings
Using
<S>
, switch from the measured value display to the main menu of the
settings. Then navigate to the setting menu of the sensor. The procedure is
described in detail in the IQ S
ENSOR
N
ET
system operating manual.
Date
Date of the calibration
Slope
Slope [mV/pH]
Asymmetry potential
Asymmetry potential [mV]
Evaluation of the calibration
o.k.
: Successful calibration.
The new calibration data are taken over for mea
-
surement.
Error
: Calibration unsuccessful.
Sensor blocked for measurement.
default
: Default value (delivery status)
Tolerance
Tolerance range for slope and asymmetry poten
-
tial
Reactivating old calibration data is a temporary measure. Take into
consideration that the sensor may provide wrong measured values.
Ensure the correct functioning of the sensor by checking and/or
recalibrating it.
1. Open the setting menu of the sensor (see section 4.3).
2. In the
Calibration
menu, select the setting
last valid
and then exit the
setting table with
Save and quit
.
Setting Selection/Values Explanation
Measuring mode

U (mV)

pH
Unit of the measured value in the measured
value display