Thermo Scientific SOLA II, User Manual

Page: 73 / 205

Configuration
Calibration
Thermo Fisher Scientific SOLA II User Guide 6-19
*No injections
Note
This is the most common form of low calibration that requires only one
standard. For SOLA II Trace, it is recommended that a low concentration
standard be used.
σ
Note
To prevent repetition, these sections do not include screen shots. Each
menu item within the Calibration Setup menu is shown in “Calibration Setup
Menu Items.”
σ
To perform a low calibration with no injections, follow the steps below.
1. Go to Configuration > Calibration Setup > Low Cal Value. Set the low
calibration value to zero.
2. Exit the Calibration Setup menu.
3. Reduce the pressure at the solenoid manifold air regulator to zero (this is
the bottom regulator located in the pneumatic cabinet). Lowering the
solenoid manifold pressure will accomplish two things:
a. The diverter valve will switch to the diverter position blocking the
sample.
b. The injection valve will stop injecting, letting only the carrier gas run
through the system.
4. Let the unit run until the sulfur concentration reported is stable.
5. Go to Configuration > Calibration Setup > Recalibrate Low. Press YES to
accept the new low calibration.
At this point, the average of the detector signal is latched to correspond to a
zero sulfur concentration.
Performing a Low
Calibration at Zero*