OX-04 Operator’s Manual
Chapter 5: User Mode and Calibration
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41
Performing a Bump Test (BUMP)
Bump test the instrument before each day’s use with a known concentration of the target gas. The
instrument does not need to be calibrated unless it does not pass the bump test.
To bump test the OX-04, you need:
• Calibration gas cylinder
• 0.25 LPM fixed flow regulator
• Non-absorbent tubing
• Calibration cup
1. Confirm that the OX-04’s calibration gas value matches the concentration listed on the
calibration gas cylinder as described on page 53.
2. Confirm that the regulator knob is turned all the way clockwise. Screw the 0.25 LPM fixed
flow regulator onto the calibration cylinder.
3. Install the calibration cup onto the OX-04. Be sure the calibration cup is installed in the
correct direction and that it is pushed on all the way.
4. Use the tubing to connect the regulator to the inlet of the calibration cup (labeled “IN”).
5. While in User Mode, press AIR to scroll to
BUMP
.
Table 9: Calibration Concentration Limits
Channel
Min. Cal.
Concentration
Max. Cal.
Concentration
Oxygen (O
2
)
0.0%
18.0%
POW ER
MODE
AIR
Front View
Side View
BUMP
Содержание OX-04
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