GX-3R Pro Operator’s Manual Chapter 3: Operation • 36
7. Monitor the readings and note if any alarms occur. The readings will peak shortly after the last
squeeze and may decrease before all the channels can be checked. Use the Peak screen in
Display Mode to see the maximum readings for each channel (see page 47).
NOTE: The peak readings for each channel are saved until a higher peak is recorded,
the peak readings are reset, or the instrument is turned off. If a gas is present
but the level does not exceed the previous peak level, the previous peak will
be displayed on the Peak Screen.
Alarms
This section covers alarm indications in Measuring Mode. It also describes responding to and
resetting an alarm condition.
NOTE: False alarms may be caused by radio frequency (RF) or electromagnetic (EMI)
interference. Keep the GX-3R Pro away from RF and EMI sources such as radio
transmitters or large motors.
Alarm Indications
The GX-3R Pro buzzer sounds an alarm, the LEDs flash, and the vibrator pulses when any sort of
alarm condition or failure occurs. If the GX-3R Pro is operating in Stealth Mode, the buzzer does
not sound and the vibrator’s operation depends on the VIBRATION setting in Gas Select Mode’s
STEALTH menu item. See page 196 for more information.
NOTE: If an alarm condition occurs while you are in Display Mode, the GX-3R Pro
automatically returns to the Measuring Mode screen.
The table below summarizes the GX-3R Pro’s alarm types and indications.
None of the Man Down alarm indications occur if MAN DOWN is set to OFF (factory setting) in
User Mode. The Panic alarm does not occur if PANIC is set to OFF (factory setting) in User
Mode.
Alarm Type Visual Indications Other Indications
Warning
Concentration of gas rises above the
Warning setting or falls below the
Warning setting for O
2
.
• Affected channel’s gas reading
flashes and the units field
alternates between the units and
AL1
• Alarm LEDs flash in circle
sequence once per second
• Backlight turns on
• High-low tone sounding
once per second
• Vibrator pulses once per
second