Metrohm 726 Titroprocessor - Manual (Page 186)

8.9 CAL
726 Titroprocessor, Instructions for use 180 180
The temperature can be included in formulas for calcu-
lations (see page 118ff). The different system variables
are listed on page 178 and 128.
8.9.2 Specific CAL* mode parameters [ * Param ]
The buffer tables for the relevant CAL* mode can be found under the
[* Param ]
softkey.
ЪДДД CAL* Parameters ДДДДДДД¿
³ ³
³ Buffer Type Value [pH] ³
³ ДДДДДД ДДДДДДД ДДДДДДДДД ³
³ 1 Metrohm 7.000 ³
³ 2 Metrohm 4.000 ³
³ 3 Metrohm ³
³ 4 Metrohm ³
³ 5 Metrohm ³
³ 6 Metrohm ³
³ 7 Metrohm ³
³ 8 Metrohm ³
³ 9 Metrohm ³
³ ³
АДДДДДДДДДДДДДДДДДДДДД QUIT ÄÙ
Up to nine different buffer solutions of various types or manufacturers can
be entered here.
Type
Buffer solution type or manufacturer
Metrohm | NIST | DIN | Fisher | Novartis | Ingold |
Merck | Beckman | Radiom. | none | custom
As the buffer solutions can have very different composi-
tions, it is necessary to enter the correct buffer type so
that the temperature correction function can be correctly
applied during the calibration.
If your type of buffer is not given in the list you should
select 'none'.
During the calibration the determined values are com-
pared with the buffer solution information (theoretical
value, temperature for automatic temperature meas-
urements) and subjected to a plausibility test, see page
117. If this leads to interfering error messages with 'ex-
otic' buffers or 'extraordinary' sensors, then select the
buffer type 'custom' for user-defined buffer types. No
plausibility test is carried out in this setting.
Value [pH]
Nominal pH of the buffer
pH -20…20
The buffer solutions offered by the above-mentioned
manufacturers are stored in the Titroprocessor with their
nominal values. The entry field has a selection list in
which various buffer values depending on the given
buffer type or manufacturer can be selected. It is also