Calibration Setup; Alarm Setup - MSA ALTAIR 4X Operating Manual

3.4.2 Calibration Setup

The user can change and set the calibration values for each sensor.
It is also possible to select whether the Cal Due screen is displayed and
set the number of days until the next calibration is due. For more
information, see the flow charts in Section 7.7.
Figure 3-3. Calibration Setup
1. To bypass this setup, press the ▲ or ▼ button; otherwise, continue
as follows.
2. Press the button to enter the submenu.
• The calibration gas concentration of the first sensor is shown.
3. Press the ▲ or ▼ button to change the value.
4. Press the button to store the value.
• Setup screen for the next sensor is displayed.
5. Repeat the procedure for all other sensors.
• After setting the last sensor, the user is prompted to set
CALDUE.
6. Press the ▲ or ▼ button to enable or disable CALDUE Press the
button to confirm the selection.
7. If CALDUE is set ON, press the ▲ or ▼ button to select the
number of days
8. Confirm with the
9. After confirmation, continue to Alarm setup.

3.4.3 Alarm Setup

The user can switch all alarms ON or OFF and change the alarm
setpoints for each sensor. For more information, see the Section 7.8
flow charts. See section 5.2 for alarm adjustment limits. The value of the
High Alarm can only be set to a value higher than the Low Alarm
setpoint.
3-10
button.