Operation
Calibration Menu
Thermo Fisher Scientific
Model 15
i
Instruction Manual
3-19
The Calibrate HCl Background screen is used to adjust the instrument
zero, or background. Before making an adjustment, be sure the analyzer
samples zero air until the readings stabilize. The display shows the current
HCl reading and the current background value. Press
to set the HCl
reading to zero.
It is important to note the averaging time when calibrating. The longer the
averaging time, the more accurate the calibration will be. To be most
accurate, use the 300-second averaging time. For more information about
calibration, see Chapter 4, “
Calibration
”.
●
In the Main Menu, choose Calibration >
Cal Background
.
HCl BACKGROUND:
HCl: 15.80
CURRENTLY: 0.00 ?
SET HCl TO ZERO
RANGE AVG DIAGS ALARM
The Calibrate HCl Coefficient screen is used to adjust the HCl coefficient
and enter the span concentration. The display shows the current HCl
concentration reading and the current HCl range. The next line of the
display is where the HCl calibration gas concentration is entered.
The HCl span coefficient is calculated, stored, and used to correct the
current HCl reading. For more information about calibration, see Chapter
4, “
Calibration
”. In dual or auto range modes, “High” or “Low” is
displayed to indicate the calibration of the high or low coefficient.
It is important to note the averaging time when calibrating. The longer the
averaging time, the more accurate the calibration will be. To be most
accurate, use the 300-second averaging time. For more information about
calibration, see Chapter 4, “
Calibration
”.
Calibrate HCl
Background
Calibrate HCl
Coefficient
CALIBRATION:
>CAL BACKGROUND
CAL COEF
ZERO/SPAN CHECK
RANGE AVG DIAGS ALARM
CALIBRATION:
>CAL BACKGROUND
CAL HI COEF
CAL LO COEF
RANGE AVG DIAGS ALARM