T
HERMO
F
ISHER
S
CIENTIFIC
S
S
S
S
S
ECTION
ECTION
ECTION
ECTION
ECTION
5
5
5
5
5
M
AINTENANCE
AND
C
ALIBRATION
P
ROCEDURES
O
PERATING
G
UIDE
, TEOM 1405
5-31
Perform the ambient air temperature calibration, pressure calibration and
leak check (Section 3) before executing the flow calibration procedure.
To calibrate the ambient pressure:
To calibrate the ambient pressure:
To calibrate the ambient pressure:
To calibrate the ambient pressure:
To calibrate the ambient pressure:
1. In the TEOM Data screen, select the
Service
button to display the
Service screen, then select the
Calibration
button to display the
Calibration screen (Figure 5-32).
2. Select the
Ambient Calibration
button to display the Ambient
Calibration screen (Figure 5-37).
3. Determine the current ambient pressure in atmospheres (absolute
pressure, not corrected to sea level).
4. If the measured value is within ± 0.01 atm of the pressure displayed in
the
Ambient Pressure:
field of the button, no further action is
necessary. Select the
< Back
button to return to the Calibration
screen. If the value is not within ± 0.01 atm of the pressure displayed
in the
Ambient Pressure:
field of the button, select the
Ambient
Pressure:
button. A keypad will display. Enter the actual pressure as
measured by the external device and press the
Enter
button. The
Ambient Pressure Calibration screen will display with the new entered
value. Select the
< Back
button to return to the Calibration screen.
Calibrating the
Calibrating the
Calibrating the
Calibrating the
Calibrating the
Ambient Pressure
Ambient Pressure
Ambient Pressure
Ambient Pressure
Ambient Pressure
Figure 5-37.
Figure 5-37.
Figure 5-37.
Figure 5-37.
Figure 5-37.
Ambient Calibration screen.
Содержание TEOM 1405
Страница 2: ......