MSA altair 5, Instruction Manual

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3.2. Turning ON and Fresh Air Setup
Instrument operation is dialog driven from the display with the aid of the
three Function buttons (see Section 2.2.1). For more information, see
the flow charts in Section 7.
Turn the instrument ON with the button.
• The instrument performs a self test:
During the self test, the instrument checks alarm LEDs, audible
alarm, vibrating alarm, and for missing sensors.
In case of a missing sensor, the instrument displays the Sensor
Missing screen (see section 2.5) and alarms until it is turned OFF.
Otherwise, the turn-ON sequence continues.
• The instrument displays:
• Startup logo
• Software version, instrument name and serial number,
company name, department, and user names
• Sampling safety test (if equipped with an integral pump)
• Combustible gas type and sensor units
(monochrome display only)
• Low Alarm setpoints
• High Alarm setpoints
• STEL Alarm setpoints (if enabled)
• TWA Alarm setpoints (if enabled)
• Settings for calibration cylinder
• Current date
• Last calibration date (if enabled)
• CAL due date. If the calibration due date is enabled,
the message "CAL DUE; X DAYS" appears on the
instrument display.
• X = the number of days until a calibration is due, user
selectable for 1 to 180 days.
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.
3-2