Sampling Safety Test - Altair 5 Manuel D'utilisation

• Sensor warm-up period
• Fresh Air Setup option (if enabled).
Refer to flowchart in Appendix, Section 7.1

3.2.1 Sampling Safety Test

This test is only on units with software version 1.3 or higher for
instruments that are equipped with an integral pump.
At startup, an alarm (visual, audible, and vibrating) is triggered and the
customer is prompted to block the pumps/sampling system of the
instrument within 30 seconds.
When the instrument detects a pump flow block, it displays a PASS
message. The startup sequence resumes.
If the instrument does not detect a pump flow block, it displays an
error message.The instrument shuts OFF after the customer
acknowledges this message by pressing the ▲ button. If this occurs
check your sampling system and contact MSA as needed.
Users can check the operation of the sampling system anytime during
operation by blocking the sampling system to generate a pump alarm.
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 drawn into the instrument,
readings will be inaccurate and instrument could be
damaged. We recommend the use of an MSA sample probe
containing a special membrane filter, permeable to gas but
impermeable to water, to prevent such an occurrence.
" WARNING
3-3