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The 820M system has a build-in pH meter and a pH-meter electrode
plug-in port marked PH on the back side of the 820M interface.
The pH electrode can be ordered at DMT by contacting your sales
representative or emailing [email protected].
The pH calibration procedure is listed in 4 individual steps and needs
to be performed one at a time.
LOGIN CODE TO pH
Call DMT A/S to get acces code.
System ID number. 1056
CLR
ENTER
0
1
2
3
4
5
6
7
8
9
Step no.:
Follow the pH calibration
procedure in the User Manual.
NEXT STEP
1
2
3
4
Clean the pH electrode and the
pH CALIBRATION
temperature probe.
When ready go to next step.
Step 1 - Step 1 involves cleaning the pH electrode and the temperature
probe with double distilled water. When ready Press NEXT STEP.
NOTE: Before the pH calibration is performed be sure to
select the way the pH electrode is to be used. See the sub-
menu pH Set-up under Interface Settings.
Step 2 - Place the pH electrode and temperature probe in the high
buffer solution (here pH 7) and turn on stirring of the high buffer
solution. When the relative pH output in the blue line is stable, go to
NEXT STEP.
Step 3 - Place the pH electrode and temperature probe in the low
buffer solution (here pH 4) and turn on stirring of the low buffer
solution. When the relative pH output in the blue line is stable, go
to NEXT STEP.
Step no.:
Apply buffer with the High pH value
to the pH and temp. probe.
NEXT STEP
BACK
1
2
3
4
When the pH reading
pH readings: 1863
pH CALIBRATION
is stable, go to next step.
Step no.:
Apply buffer with the Low pH value
to the pH and temp. probe.
NEXT STEP
BACK
1
2
3
4
When the pH reading
pH readings: 883
pH CALIBRATION
is stable, go to next step.
