MSA altair 4 - Page 36

OPERATION MSA
36
ALTAIR 4 - Operating Manual
3.8.1 Equipment.
See accessory section for ordering information for these components.
• Calibration Check Gas Cylinder
• 0.25 liters/min. Flow Regulator
• 1/8” ID Superthane Ester Tubing
• Altair 4 Calibration Cap
3.8.2 Performing a Bump Test
To skip the Bump Test procedure, push the
[
]
button repeatedly to return
to Measuring mode. If no button is pushed for 30 seconds, the instrument
returns to the Measuring mode automatically.
(1) From the normal measure screen press
the
[ ]
button to display “
BUMP
TEST
?”.
(2) Verify the gas concentrations displayed
match the Calibration Check Gas
Cylinder. If they do not, adjust the values
through the Calibration Setup menu as
described in section 3.4.2.
COMB/EX
O2
H2S
CO
COMB/EX
O2
H2S
CO
(3) Attach the calibration cap to the
instrument.
• Insert tab on calibration cap into
slot on instrument.
• Press calibration cap as shown
until it seats onto instrument.
• Press both side tabs down onto
instrument until they snap in.
• Ensure that the calibration cap is
properly seated.
• Connect one end of the tubing to
the calibration cap.
• Connect other end of tubing to the
cylinder regulator (supplied in the
calibration kit).