MSA altair 5, Руководство по эксплуатации, Страница: 41 / 221

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MSA OPERATION
ALTAIR 5 - Operating Manual
41
3.9.2 Span Calibration
To skip the Span calibration procedure, push the button.
If no button is pushed for 30 seconds, the instrument returns to the
Measuring mode without calibrating the instrument.
Because of the different combinations of gases it is possible to perform
single-channel calibration for the exotic sensors.
(1) The span screen displays.
(2) Connect the appropriate
calibration gas to the instrument.
1:30 PM
SPAN CALIBRATION
?
YES NO
COMB
CO
O
2
H S
2
%
PPM
58
60
%
PPM
15.0
20
PENTANE
(3) Attach the calibration cap to the instrument, diffusion only.
•
Ensure that the calibration cap is correctly oriented, if equipped.
•
Connect one end of tubing to the cylinder regulator (supplied in
the calibration kit).
•
Connect other end of the tubing to the calibration cap or pump
inlet.
(4) Open the valve on the regulator.
(5) Press the button to calibrate
(span) the instrument.
•
LEDs flash
•
“
SPAN CALIBRATION
“
blinks
•
SPAN calibration starts.
•
A progress bar shows the
user how much of the
calibration has already been
completed.
1:30 PM
SPAN CALIBRATION
COMB
CO
O
2
H S
2
%
PPM
0
0
%
PPM
20.8
0
SETUP
65%
•
After the SPAN calibration is
completed, the instrument
displays either
“
SPAN CALIBRATION
PASS
”
or
“
SPAN CALIBRATION
FAIL
”
•
The instrument returns to
Measuring mode.
1:30 PM
SPAN CALIBRATION PASS
COMB
CO
O
2
H S
2
%
PPM
%
PPM
SETUP
1:30 PM
SPAN CALIBRATION FAIL
COMB
CO
%
PPM
H S
O
2
2
SETUP