38 • Measuring Mode, Alarms
EAGLE 2 Operator’s Manual
Measuring Mode, Alarms
This section covers alarm indications in Measuring Mode. It also describes how to reset
the EAGLE 2 after an alarm has occurred and how to respond to an alarm condition.
NOTE:
False alarms may be caused by radio frequency (RF) or electromagnetic (EMI)
interference. Keep the EAGLE 2 away from RF and EMI sources such as radio
transmitters or large motors.
Alarm Indications
The EAGLE 2 will sound an alarm and flash the LED arrays when one of the target gas
concentrations rises above the Low Alarm level, or in the case of oxygen falls below the
Low Alarm level, for that gas.
The EAGLE 2 also sounds an alarm and flashes the LED arrays when one of the target gas
concentrations rises above the High Alarm level and when the STEL and TWA alarm
levels are reached for CO and H
2
S.
NOTE:
If an alarm condition occurs while you are in Display Mode, the EAGLE 2 will
automatically bring up the alarm screen instead.
When a failure condition occurs, such as a sensor failure, low flow, or dead battery
condition, the unit will also sound an alarm and flash the LED arrays.
The table below summarizes the types of alarms produced by the EAGLE 2 and their
indications.
Table 6: Alarm Types and Indications
Alarm Type
Visual Indications
Audible Indication
Low Alarm
Concentration of gas rises
above the Low Alarm setting
or falls below the Low Alarm
setting for O
2
.
•
ALRM1
appears next to gas
reading
• Alarm LED arrays flash once
per second
• Backlight turns on
Pulsing tone once per
second
High Alarm
Concentration of gas rises
above the High Alarm
setting.
•
ALRM2
appears next to gas
reading
• Alarm LED arrays flash twice
per second
• Backlight turns on
Pulsing tone twice per
second
TWA or STEL
Concentration of CO or H
2
S
rises above the TWA or
STEL alarm setting.
• Alarm LED arrays flash once
per second
• Backlight turns on
•
TWA
or
STEL
appears next to
gas reading
Pulsing tone once per
second
www.
.com
information@itm.com
1.800.561.8187