MSA ALTAIR 5 Operating Manual page 39

MSA
3.9.1 Zero calibration
To skip the ZERO procedure and move directly to the calibration span
procedure, push the [
instrument prompts user to perform a SPAN calibration before instrument
returns to the Normal Operation mode.
(1) Press the [
Operation mode for more than
three seconds.
•
(2) Press the [
ZERO screen, i. e. to execute zero
calibration.
•
•
•
•
•
"
ZERO CALIBRATION
PASS
or
"
ZERO CALIBRATION
FAIL
•
US
] button. If no button is pushed for 30 seconds, the
] button in Normal
ZERO screen displays.
] button to confirm the
LEDs flash
"
ZERO CALIBRATION
blinks
ZERO calibration starts.
A progress bar shows the
user how much of the
calibration has already been
completed.
After the ZERO calibration is
completed the instrument
displays either
"
".
Only if the instrument passes
the zero calibration the SPAN
screen displays.
ALTAIR 5 - Operating Manual
"
OPERATION
1:30 PM
SETUP
% %
0 20.8
O
COMB
2
PPM
PPM
H S
CO
0
0
2
SO
2
PPM
0
ZERO CALIBRATION ?
YES NO
1:30 PM
SETUP
%
%
0 20.8
O
COMB
2
PPM PPM
CO 0
H S
0
2
Cl
2
PPM
0.0
ZERO CALIBRATION
65%
1:30 PM
SETUP
% %
O
COMB
2
PPM
PPM
H S
CO
2
Cl
PPM
2
ZERO CALIBRATION PASS
1:30 PM
SETUP
%
O
2
PPM
Cl
2
ZERO CALIBRATION FAIL
1:30 PM
SETUP
%
%
58 15.0
O
COMB
2
PPM
PPM
CO H S
20
60
2
SPAN CALIBRATION ?
YES NO
39