MSA ALTAIR 4XR, Operating Manual

Page: 30 / 63

ALTAIR
®
4XR
30
Operation
US
Fig. 5 Calibration Setup
(1) To bypass this setup, press the  or  button; otherwise, continue as follows.
(2) Press the
q
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
q
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.
(7) Confirm with the
q
button.
(8) If CALDUE is set on, press the

or

button to select the number of days
(9) Confirm with the
q
button.
(10) Press the  or  button to enable or disable the calibration password (CAL PW) screen.
(11) Confirm with the
q
button.
(12) After confirmation, continue to Alarm setup.
Alarm Setup
The user can switch all alarms on or off and change the alarm set points for each sensor. For more
information, see the flow charts in chapter 7.8 "Alarm Setup".
See chapter 5.1 "Factory-set Alarm Thresholds and Setpoints" for alarm adjustment limits. The value
of the High Alarm can only be set to a value that is higher than the Low Alarm set point.
Fig. 6 Alarm Setup
(1) To bypass this setup, press the  or  button; otherwise, continue as follows.
(2) Press the
q
button to enter the submenu.