GX-3R Pro Operator’s Manual Chapter 3: Operation • 38
Low Battery Warning • The last bar in the battery icon
starts flashing
None
Dead Battery Alarm
• Gas readings disappear and FAIL
BATTERY appears at the bottom
of the LCD
• Alarm LEDs flash once per
second
Double pulsing tone once
per second
Sensor Failure
• FAIL SENSOR appears at the
bottom of the LCD and the failed
sensor(s) are indicated with FAIL
under the gas name.
• Alarm LEDs flash once per
second
Double pulsing tone once
per second
LIMITED HC GAS LIST
• LIMITED HC GAS LIST
appears on the screen
• Alarm LEDs flash once per
second
Double pulsing tone once
per second
Clock Failure
• FAIL CLOCK appears at the
bottom of the LCD
• Alarm LEDs flash once per
second
Double pulsing tone once
per second
System Failure
• FAIL SYSTEM appears at the
bottom of the LCD and an error
code displays in the middle of the
LCD
• Alarm LEDs flash once per
second
Double pulsing tone once
per second
Man Down Warning 1
The WARNING 1 TIME defined in
User Mode has passed since the
instrument detected movement.
• Alarm LEDs flash once per
second
Single pulsing tone once
per second
Man Down Warning 2
The WARNING 2 TIME defined in
User Mode has passed since the
instrument detected movement.
• Alarm LEDs flash twice per
second
Single pulsing tone twice
per second
Alarm Type Visual Indications Other Indications