Calibration - MSA ALTAIR 5X PID Operating Manual

5 Operation
If any sensor fails the Bump Test:
• the message BUMP TEST FAIL appears
• the failed sensor is indicated.
If there are more sensors to be Bump Tested, the next sensor displays and the process repeats from Step 4.
If there are no more sensors to be Bump Tested, the tubing can be removed from the device pump inlet.
After the Bump Test
After all installed sensors pass the Bump Test, the √ symbol displays on the -MEASURE page. This √ symbol appears on the
display in the upper feature bar
If any sensor was not bump tested, or fails the Bump Test, the √ symbol does not display.
The display:
• temporarily shows the √ symbol at each gas reading for successfully bump tested sensors
• √ symbol is then replaced by the present gas reading.
The √ symbol shows for 24 hours after the Bump Test.
If a sensor fails the Bump Test, calibrate the device as described in
5.10

Calibration

The ALTAIR 5X PID can be calibrated either manually using this procedure or automatically using the GALAXY GX2 test
stand. Refer to 12.5 Calibration
The use of the demand regulators listed in
battery pack has been depleted or a new battery pack has been installed allow sensors to stabilize for 30 minutes before
calibration is performed.
WARNING!
Special conditions with toxic gases!
If the device is to be checked or calibrated for reactive gases, prerequisites are required; otherwise, incorrect calibration would
result in incorrect device operation.
Reactive toxic gases (e.g., chlorine, ammonia, chlorine dioxide) have the property of diffusing into the rubber and plastic tubes
so that the volume of test gas available in the device would no longer be sufficient to correctly perform device calibration.
When calibrating the device with toxic gases, certain prerequisites are required, otherwise incorrect calibration could result:
• A special pressure regulator
• Shortest possible connection tubes between the pressure regulator and the device
• Connection tubes made from a material that does not absorb the test gases (e.g., PTFE).
NOTE: If using normal tubes and pressure regulators, expose them to the required test gas for an extended time period. Keep
these materials dedicated for use with that test gas only; do not use them for other gases. For example, for chlorine, allow the
entire contents of a test gas cylinder to flow through the pressure regulator and tubes before using to calibrate the device. Mark
these materials for use with chlorine only.
Options.
10 Ordering Information
ALTAIR 5X PID
5.10 Calibration
is recommended. If a new sensor has been installed, the
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