Metrohm 780 - Ph Measurement

3.1 pH measurement
22
780/781 pH/Ion Meter, Manual
3.1.4 pH measurement
1 Select printout criterion
• If the obtained measured value is to be printed out directly as
a measuring point report or transferred to a PC then the re-
quired printout criterion must be set
(see Section 5.2):
CONFIG/print meas.value/print crit.: drift
2 Start measurement
• Immerse the pH electrode in the sample.
• Switch on stirrer with
<STIRRER>
.
3 Determine measured value
•
You can read off the actual pH of the sample from the display.
It is stable when the drift display
(small double arrow on the left-hand side) no longer blinks.
4 Print measurement
• With
<MEAS/PRINT>
you can start the output of a measuring
point report on a printer or PC. The recording of the meas-
urement and its output depend on the printout criterion 'Drift'
and take place only when the current drift condition is fulfilled
(see Section
6.2.1):
CONFI G
STI RRER
2
MEAS/
PRI NT
'mp
781 pH/Ion Meter 01104 5.781.0020
date 2004-05-12 16:57:55
pH ******** run number 5
electr.id
#5 pH = 5.875 20.2 °C Pt1000
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