Measuring The Ph Value - wtw 330i Operating Manual

pH 330i/340i
Setting the resolution
The temperature measurement is absolutely essential for a reproduc-
ible pH measurement. If the measurement is made without a tempera-
ture sensor, proceed as follows:
1 Measure the current temperature of the test sample using a
thermometer.
2 Enter the temperature on the instrument: Set the temperature
value of the test sample using <

4.2.2 Measuring the pH value

1 Perform the preparatory activities according to section 4.2.1.
2 Immerse the pH electrode in the test sample.
3 Press the <M> key until pH appears on the status display. The
pH value appears on the display.
ISE U pH
S
6 9 9
1
Time Baud
8 2 4
Day.Month No.
Year Ident
AutoCal DIN Auto Store
LoBat
AutoCal TEC ConCal
The measuring instrument shows the pH value with a resolution of 0.01
or 0.001. (Default setting is 0.01). To change the resolution, press the
<M> key while pressing the <RUN/ENTER> key.
> < >.
mol/L
2
mV/pH
% ppm
mg/L
°F
8
%
TP
°C
CalError TempError
ARng AR RCL
Operation
15