GB
MSA MAINTENANCE
ALTAIR 5 - Operating Manual 47
4.2. Verifying Pump Operation
Users can check operation of the sampling system any time during operation by
blocking the sampling system to generate a pump alarm.
Once gas readings are displayed, plug the free end of the sampling line or probe.
• The pump motor shuts down and an alarm sounds.
• PUMP ERROR will flash on the display.
Monochrome display Colour display
PUMP ERROR
PUMP ERROR
When the pump inlet, sample line or probe is blocked, the pump alarm must
activate.
If the alarm does not activate:
a. Check the sample line and probe for leaks.
b. Once leak is fixed, recheck pump alarm by blocking the flow.
(5) Press the
button to reset the alarm and restart the pump.
During operation, a pump alarm may occur when the:
• Flow system is blocked
• Pump is inoperative
• Sample lines are attached or removed.
To Clear Pump Alarm
(1) Correct any flow blockage.
(2) Press the
button.
• The Pump will now restart.
To Next Page
