RKI Instruments EAGLE 2 Manual - Manual (Page 46)

36 • Measuring Mode, Alarms EAGLE 2 Operator’s Manual
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
Over Range • OVER appears next to gas
reading
• Gas reading indicates full
scale
• Alarm LED arrays flash twice
per second
• Backlight turns on
Pulsing tone twice per
second