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GasAlertMicro 5/PID/IR
User Manual
Auto Span
5. When auto zero is complete, the following screens display.
GasAlertMicro 5 and PID
GasAlertMicro 5 IR
Span sensors in the following order:
• Exotics (NH
, ClO
3
• Single gas
• Quad gas (H
S, CO, LEL, and O
2
• PID
50
.Note
, O
, Cl
, and CO
)
2
3
2
2
)
2
A generator must be used for O
To ensure accurate calibration, a single gas calibration cap
must be used to calibrate O
• ClO
: Use a Tedlar bag as a buffer between the generator
2
and the detector (using the single gas calibration cap) to
regulate the flow rate to ensure accurate readings.
• Allow the Tedlar bag to fill for several minutes before
initiating calibration.
• O
: Calibrate using the generator and the single gas
3
calibration cap. Do not use a Tedlar bag.
• Set the generator to 0.5 ppm at a flow rate of 0.5 l/min.
Depending upon the gas cylinder being used, one or all four sensors
can be calibrated at one time.
Apply Span Gas Now
Attach the calibration cap (or single gas calibration cap for O
and ClO
) and apply gas to the sensor(s). To attach caps, refer
2
to
Figure
3..
Refer to the following flow rates:
• 1000 ml/min. for NH
• 500 ml/min. for CO
• 250-500 ml/min. (all other sensors)
Note
and ClO
sensors.
3
2
and ClO
sensors.
3
2
and Cl
3
2
2
3
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Troubleshooting
