16
Dilution Fresh Air Cal
Please Wait….. 14
↓
Fresh Air Calibration
Completed
Upon completion of the manual dilution
fresh air calibration, the Cannonball 3 will
return to the Main Menu.
3.3.5 Dilution span calibration
The manual dilution span calibration
performs a span calibration with the
dilution pump enabled.
To perform a dilution span calibration:
1. Enter the Calibration Menu.
CALIBRATION MENU
GAS VALUES
SPAN CAL
HISTORY O
2
ZERO CAL
DIL. SPAN
FRESH AIR
DIL. FRESH
REMINDER
EXIT
2. Use the navigation arrows to highlight
DIL. SPAN as shown above and
press the MODE button.
DILUTION SPAN CALIBRATION
LEL
0
CO
0
H
2
S
0
SO
2
0.0
EXIT
3. Use the up and down navigation
arrows to highlight the sensor that
requires calibration.
DILUTION SPAN CALIBRATION
LEL
0
CO
0
H
2
S 0
SO
2
0.0
EXIT
4. Confirm the sensor selection by
pressing the MODE button.
DILUTION SPAN CALIBRATION
LEL
0
CO
0
H
2
S 0
SO
2
0.0
EXIT
5. Once the sensor type has been
selected, fill the calibration balloon
with the appropriate calibration gas
and connect the balloon assembly to
the inlet coupling on the front of the
Cannonball 3 or use a demand flow
regulator to deliver the gas.
Make sure the
regulator, cylinder seating surfaces
and threads are clean and dry before
attaching the regulator to the cylinder
of gas. Introduction of contaminants
through the regulator fittings may
alter or degrade the concentration of
the gas contained in the cylinder and
may lead to inaccurate and potentially
dangerous gas readings.
Make sure the correct
cylinder of gas is used to fill the
calibration balloon! Use of incorrect
calibration gas may lead to inaccurate
and potentially dangerously readings.
DILUTION SPAN CALIBRATION
LEL
0
CO
0.0
H
2
S 0.0
SO
2
9.7
EXIT
6. When the readings stabilize, use the
up and down navigation arrows to