Verifying Pump Operation - MSA ALTAIR 5 Operating Manual

MAINTENANCE
4.2.

Verifying Pump Operation

(1) Turn ON the ALTAIR 5 Multigas Detector.
The pump motor starts fast and then slows down as the instrument
•
adjusts the power to run the pump.
(2) 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.
•
Monochromatic display
PUMP ERROR
When the pump inlet, sample line or probe is blocked, the pump alarm must
activate.
If the alarm does not activate:
a.
b.
Perform a blocked flow test before each day's use. Do not use the
pump, sample line, or probe unless the pump alarm activates when the
flow is blocked. Lack of an alarm is an indication that a sample may not
be drawn to the sensors, which could cause inaccurate readings.
Failure to follow the above can result in serious personal injury or death.
Never let the end of the sampling line touch or go under any liquid
surface. If liquid is sucked into the instrument, readings will be
inaccurate and instrument could be damaged. We recommend the use
of an MSA sample probe (P/N 10042621, 10042622, 10040589, or
equivalent) containing a special membrane filter, permeable to gas but
impermeable to water, to prevent such an occurrence.
(5) Press the [
During operation, a pump alarm may occur when the:
Flow system is blocked
•
Pump is inoperative
•
Sample lines are attached or removed.
•
44
Check the sample line and probe for leaks.
Once leak is fixed, recheck pump alarm by blocking the flow.
] button to reset the alarm and restart the pump.
ALTAIR 5 - Operating Manual
Color display
PUMP ERROR
WARNING
MSA
US