Safety Guide

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display; if two or more peer alarms are active, they will all be acknowledged with a single press of the enter
button .
When the instrument has more than one active alarm (or active peer alarm), the display will cycle through
messages for each event; however, when the instrument is in alarm, it will not display peer alarms.
Instrument alarm events are distinguished from one another through the use of symbols (see Table 6.1)
that appear on the display screen. Peer events use the same or similar symbols within peer-alarm
messages.
Table 6.1 Alarm events (list)
Alarm symbol Alarm
level
Alarm event Description
Instrument events
OR, -OR
High
Gas present
(over-range)
The detected gas concentration is outside the sensor’s
measuring range.
High
Gas present
(high-alarm)
The detected gas concentration exceeds the high-alarm
setpoint.
High
STEL
The cumulative measure of a detected gas exceeds the
STEL setpoint.
High Man down
The instrument has been stationary for the set period of
time. To turn off the alarm, press and hold .
High Panic
The user has pressed the instrument’s panic button and
held it long enough (approximately 3 seconds) to turn on the
panic alarm. To turn off the alarm, press and hold .
High System The instrument is in failure (error code 408 shown here) and
is not operational.
High Critical low battery The instrument has shut down and is not operational.
Access
Denied
High Proximity The instrument has entered an iAssign® Beacon-restricted
area where the Beacon's access level is higher than that of
the current user's access level.
Low Gas present
(low-alarm)
The detected gas concentration exceeds the low-alarm
setpoint.
Low TWA The cumulative measure of detected gas exceeds the TWA
setpoint.
LENS peer events
Peer high
Peer gas present
(high-alarm)
Peer high
Peer STEL
Peer high Peer man down
Peer high Peer panic
For any peer alarm, turn off alarm signals by pressing and
briefly holding ; the alarm message will remain on display
in the status bar.