Sampling System Safety Test - MSA Altair 5X Mode D'emploi

If the number of days until calibration is due reaches 0, an
alert occurs and "CAL DUE NOW" displays.
• Press the ▲ button to clear the alert.
• Sensor warm-up period
• Fresh Air Setup option (if enabled).
The Main Measure Page appears.
The presence of a ♥ indicator on the display means a sensor is
approaching or has reached its end-of-life. See section 2.2.3.6 for
details on the Sensor Life Alarm situation.
See flowchart in Section 7.1

3.2.1 Sampling System Safety Test

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