Xylem Multi 3420 - Manual (Page 48)

Operation Multi 3420
48 ba75864e11 02/2011
Sample record
Calibration evaluation After calibrating, the meter automatically evaluates the calibration. The
zero point and slope are evaluated separately. The worse evaluation of
both is taken into account. The evaluation appears on the display and
in the calibration record.
Note
For pH IDS sensors, you can optionally enable a more finely graded
calibration evaluation (QSC) (see section 4.7.10).
Multi 3420
Ser. no. 09250023
CALIBRATION pH
Calibration date 31.07.2009 16:13:33
SenTix 940
Ser. no. B092500013
TEC
Buffer 1
4.01
Buffer 2 7.00
Buffer 3 10.01
Voltage 1 184.0 mV 24.0 °C
Voltage 2 3.0 mV 24.0 °C
Voltage 3 -177.0 mV 24.0 °C
Slope -60.2 mV/pH
Asymmetry 4.0 mV
Sensor +++
etc...
Display Calibration
record Zero point
[mV] Slope
[mV/pH]
+++ -15 ... +15 -60.5 ... -58
++ -20 ... +20 -58 ... -57
+ -25 ... +25 -61 ... -60.5
or
-57 ... -56
- -30 ... +30 -62 ... -61
or
-56 ... -50
Clean the IDS sensor according to the
sensor operating manual
Error Error
< -30 or
> 30 ... -62 or
... -50
Eliminate the error according to chapter
6 W
HAT TO DO IF ...