Xylem pHotoFlex/pHotoFlex Turb - Manual (Page 57)

pHotoFlex / pHotoFlex Turb Operation
57 ba75491d04 07/2006
Sample printout of a
record
Calibration evaluation After calibrating, the meter automatically evaluates the calibration. The
asymmetry 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.
31.10.03 16:13
pHotoFlex Ser. no. 12345678
Calibration pH & ORP
Calibration date
31.10.03 16:13:33
Calibration interval 7 d
AutoCal 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 +++
Sample dis-
play Calibration
record Asymmetry
[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 electrode according
to the electrode operating
manual
---- ----
< -30 or
> 30 ... -62 or
... -50
Eliminate the error according to
chapter 6 W
HAT TO DO IF ...