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8.6.3. Alarm Detail Screen
The Alarm Detail screen displays more
comprehensive information about the nature of the
alarm including:
Figure 8-4 - Alarm Detail Screen
• Complete location information
• Gas type and current concentration (CONC
NOW)
• Peak concentration and peak time
• Type of alarm, alarm time, and date
This screen provides the following navigation
options at the bottom of the display:
• ACK - using the left arrow key, ACK will
acknowledge the alarm as described in the next
section.
• SETUP - using the right arrow key, navigate to
the Zone Setup screen 1 (Figure 8-1). This
enables review of the zone setup parameters
and accesses the Trend screen.
Use the ESC button on the RLDS unit to go back to
the previous menu.
8.6.4. Acknowledging Alarms
Each pending alarm may require, depending upon se-
lected alarm mode, acknowledgment before the sys-
tem returns to normal operation Section 7.7., Alarm
Acknowledge (Ack) - Mode. To acknowledge an
alarm, navigate to the Alarm Detail screen and
select the ACK option as previously described. You
will then be returned to the Alarm Summary screen
and the box associated with that alarm will no longer
System Faults
be blinking, indicating that the alarm has been
acknowledged. Repeat this procedure to acknowledge
any remaining alarms.
Alarm Summary Screen (Acknowledge Mode)
Figure 8-5 - Alarm Summary Screen - Acknowledge Mode
Once all the alarms associated with a given RLDS are
acknowledged, its red LED will turn off, and any ex-
ternal alarms connected to the RLDS relays will
deactivate. Keep in mind that the system will
continue to generate new alarms if PPM values above
the alarm thresholds are detected.
8.7. System Faults
8.7.1. Functional Overview
If a system malfunction occurs, the yellow FAULT
LED to glow. Additionally, an external alarm device
may activate and an audible alarm may sound if those
features have been enabled (Section 7.8., Audible
Alarm).
Depending on the nature of the fault, the RLDS may
or may not continue to operate normally. Under a
non-critical fault condition, the RLDS will continue
to measure and log data, but some peripheral
functions may be compromised. Under a critical fault
condition, action is required for the RLDS to operate
normally.
Various fault conditions are listed and explain what
action should be taken to correct the problem in Sec-
tion 8.7.2.1., Critical Faults.
General Operation of RLDS - UI • 35
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