Endress+Hauser TopClean S CPC 30, Руководство по эксплуатации

Страница: 90 / 146

6 Commissioning TopClean S CPC 30
90 EHauser
Calibration
redox relative "50% turnover point"
The 50% turnover point must be known (e.g. through titration of the toxic solution). It is
used as the calibration solution of a sample at this turnover point.
CODE CHOICE
(default = bold) INFO
(E1, 2 = Editor types, s. page 28)
User
settings
CC Calibration with
50 % turnover point Note in display
Display of the type of on-site calibration selected in the
calibration settings.
–
CCE1 Immerse:
Electrode in buffer Handling instructions
Immerse the electrode in buffer (sample at 50 %
turnover point, see above) and then press "E".
–
CCE2 20 %
(0 ... 30 %)
Enter buffer
Enter the relative redox value of buffer (detoxified
sample) in percent.
E2
CCE3 Time: 10 s
mV 1:
225
Checks the stability of the calibration
Wait until the measurement is stable:
Time does not count down,
mV value no longer flashes,
Display "Measured value stable"
Then press "E".
–
CCE4 50 % voltage
20 %
80 % -500mV
0395 mV
-0500mV Note in display:
Info on electrode.
Data on the voltage sequence on the calibration curve.
–
CCE6 Invalid calibration value Note in display:
Error message if the offset is too large.
–
CCE7 Accept
Reject
Recalibrate
End of calibration
Accept
: Pressing "E" accepts the new calibration data.
Reject
: The data is not accepted, a recalibration won’t
be started.
Recalibrate
: The data is rejected and a new calibration
will be started.
E1
CCE8 Electrode in medium? Note in display:
If the electrode is back in the medium, so that
measurement can take place?
–