Thermo Scientific SOLA II, Руководство пользователя

Страница: 70 / 205

Configuration
Calibration
6-16 SOLA II User Guide Thermo Fisher Scientific
The analyzer requires a two-point linear calibration. During the calibration
procedure the average of the raw detector signals corresponding to two
known sulfur concentrations are latched by the unit and retained in non-
volatile memory.
During normal operation, the average detector reading is interpolated on the
line to derive the sulfur concentration reported.
The graph below illustrates a SOLA II calibration.
Figure 6–43.
Prior to calibrating the instrument, the sulfur concentration expected at the
two points must be entered in the calibration setup menus (Configuration >
Calibration Setup). In the software, these points are referred to as high and
low calibration values.
For the graph above, the values would be:
Low cal value = 10.00 ppm Low cal = 555.600 kHz
High cal value = 100.00 ppm High cal = 15000.000 kHz
The high calibration value needs to be as close as possible to the full range
sulfur concentration expected in the process, and the low calibration value is
normally set to zero so that only one standard is required for calibration.
Calibration
Overview