Xylem handylab pH 11 - Manual (Page 30)

Operation handylab pH 11
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sponds to a single-point calibration. For this, the instrument uses the
Nernst slope (-59.2 mV/pH at 25 °C) and the specified asymmetry of the elec-
trode.
8 To continue the two-point calibration, thoroughly rinse the
electrode with deionized water.
9 If necessary, enter the temperature of the second buffer solu-
tion with <
▲> <▼>.
10 Immerse the pH electrode in the second buffer solution.
11 Press the key. The second pH value appears
on the display.
12 Set the measured value to the nominal pH value of the buffer
solution (at the current temperature) with <
▲> <▼>.
13 When the measured value is stable, press the
key. The value of the slope (mV/pH) appears on the display.
The probe symbol shows the evaluation of the current calibra-
tion.
14 Press the key. The value of the asymmetry
(mV) appears on the display.
AutoCal DIN
AutoCal TEC
6
mV/pH
mol/L
8
Auto Store
RCL
LoBat
CalError
ARng AR
Time Baud
Day.Month No.
Ident Year
1
U
%
°F
S
TempError
mg/L
% ppm
ISE
8 4 2
O SL
°C TP
pH
ConCal