MSA ALTAIR 4XR, Operating Manual

Page: 11 / 63

ALTAIR
®
4XR
11
Description
US
2.2 Device Hardware Interfaces
Device operation is dialog driven from the display with the aid of the three function buttons (

2.2
"Device Hardware Interfaces").
The device has three buttons for user operation. Each button can function as a "soft key", as defined
on the display directly above the button.
Button Definitions
LED Definitions
Vibrating Alarm
The device is equipped with a vibrating alarm.
Button Description
q
The
q
button is used to turn device on or off and to confirm user action selections.
When the

button and the
q
button are pressed simultaneously for device start-
up, the Options Setup Mode displays.

The  button is used to move forward through data screens in measuring mode, or
as page back and to decrease the values in set-up mode. Holding this button for
3 seconds while in Normal Operation mode activates the InstantAlert alarm.

The  button is used to reset peak, STEL TWA and acknowledge alarms (where
possible) or access calibration in measuring mode. It is also used as page up or to
increase the values in set-up mode.
LED Description
GREEN / RED
(Bump LED)
After a successful Bump Test, the green LED will flash every 15 seconds for a
24-hour period.
When the device fails a bump test or when the 24-hour period expires, the red
LED flashes every 15 seconds.
This option can be turned off through the MSA GALAXY GX2 Test Stand or
MSA Link software.
RED
(Alarm LED)
The red alarm LEDs are visual indications of an alarm condition or any type of
error in the device.
YELLOW
(Fault LED)
The yellow fault LED is a visual indication of an device fault condition. This
LED turns on with the following conditions:
•
Device memory error
• Sensor Missing
• Sensor Error
RED / GREEN /
ORANGE
(Charge LED)
The charge LED is a visual indication of charge status.
•
RED: device is charging
• GREEN: charge is complete
• ORANGE: problem detected during charging
BLUE
(Bluetooth
Status)
The blue LED is a visual indication of the Bluetooth connection status.
•
Off = Bluetooth OFF or Undiscoverable
• Fast Flash = Discoverable Mode
• Slow Flash = Connected