Metrohm 916 Ti-Touch - Manual (Page 350)

28.6 Calibration of sensors (CAL)
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916 Ti-Touch
Custom
Definition of a custom buffer series. The buffer series is defined under
System
▶ Templates ▶ Custom calib. buffers.
Special
Up to five calibration buffers can be defined in the method. The auto-
matic buffer detection is not activated in this case. The buffers must be
measured precisely in the specified sequence.
Merck Cer.
Reference temperature = 25 °C. When using Merck CertiPUR buffers
(20 °C) the buffer type Merck Tit. must be selected.
Number of buffers
This parameter is not visible when Buffer type = Special is defined.
Number of buffers that are used for calibration. If calibration is accom-
plished with more than two buffers, then they can be used repeatedly in
order to give them more statistical weight. The first two buffers must
however always be different from one another.
Selection 1 | 2 | 3 | 4 | 5
Default value 2
Buffer 1 pH
This parameter is visible only when Buffer type = Special.
The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the 32 Technical specifications chapter, page 429.
Input range –20.000 - 20.000
Default value 7.000
Buffer 2 pH
This parameter is visible only when Buffer type = Special.
The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the 32 Technical specifications chapter, page 429.
Input range –20.000 - 20.000
Default value 4.000
Selection off
Buffer 3 pH
This parameter is visible only when Buffer type = Special.
The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the 32 Technical specifications chapter, page 429.