User guide

ProLab 1000 Operation
45
ba75576e05 11/2013
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.
Preparatory activities Perform the following preparatory activities when you want to calibrate:
Printing date 26.04.06 16:13
ProLab 1000
Ser. no. 06249876
USER ID: 1234567890
CALIBRATION pH
Calibration date 20.04.06 10:14:03
A 161 1M DIN-ID
Ser. no. A062498765
USER ID: 1234567890
Cal. interval 7 d
NIST/DIN
Buffer 1 6.86
Buffer 2 9.18
Voltage 1 7.2 mV 26.3 °C
Voltage 2 -171 mV 26.3 °C
Slope -59.2 mV/pH
Zero point -0.5 mV
Sensor +++
Display Calibration
record
Zero point [mV] Slope
[mV/pH]
+++ -18 ... +18 -60.5 ... -57.5
++ -22 ... +22 -57.5 ... -56
+ -26 ... +26 -61 ... -60.5
or
-56 ... -55
- -30 ... +30 -62 ... -61
or
-55 ... -50
Clean the electrode according
to the sensor operating manual
CalError CalError
< -30 or
> 30
... -62 or
... -50
Eliminate the error according to
chapter 6 W
HAT TO DO IF...
(page 79)