Alarms

Table 7 describes the detector alarms and corresponding screens. During an alarm condition, the detector activates the backlight, audible/visual/ vibrator alarms, and displays the current ambient gas reading. If more than one type or level of alarm exists simultaneously, a multi-gas alarm results.

To change the factory-defined alarm setpoints, refer to Low Alarm, High Alarm, TWA Alarm, and STEL Alarm in Device Configuration.

Table 7. Alarms

Alarm	Screen
Low Alarm Slow siren Slow alternating flash and target gas bar flash Vibrator alarm activates
High Alarm Fast siren Fast alternating flash and target gas bar flash Vibrator alarm activates
TWA Alarm Fast siren Fast alternating flash and target gas bar flash Vibrator alarm activates
STEL Alarm Fast siren Fast alternating flash and target gas bar flash Vibrator alarm activates

Note

If the Low Alarm Acknowledge option is enabled, the audible alarm can be disabled during a low alarm condition. The LED and visual alarm indicators remain active until the alarm condition changes or the detector deactivates. Press Gas alarm to acknowledge the low alarm and deactivate the audible alarm. If the alarm escalates to a high, TWA, or STEL alarm, the audible alarm reactivates.

Alarm	Screen
Multi-Gas Alarm Alternating low and high alarm siren and flash and target gas bars flash Vibrator alarm activates
Over Limit (OL) Alarm Fast siren and alternating flash Fast alternating flash and target gas bar flash Vibrator alarm activates
Sensor Alarm ERR displays
Low Battery Alarm Sequence of 10 rapid sirens and alternating flashes with 7 seconds of silence in between (continues for 10 minutes) and flashes LOW BATTERY displays and the vibrator alarm activates After 10 minutes, a sequence of 10 rapid sirens and alternating flashes with 1 second of silence in between (reactivates seven times) TURNING OFF displays before the detector deactivates

Note

If enabled, during an alarm condition the Latched Alarms option causes the low and high gas alarms (audible, visual, and vibrator) to persist until the alarm is acknowledged (by pressing ) and the gas concentration is below the low alarm setpoint. The LCD displays the peak concentration until the alarm condition no longer exists. Enable/disable Latching Alarms in Fleet Manager II. Local regulations may require Latching Alarms be enabled.

Alarm	Screen
Automatic Deactivation Alarm Sequence of 10 rapid sirens and alternating flashes with 1 second of silence in between (reactivates seven times) flashes and the vibrator alarm activates TURNING OFF displays before the detector deactivates
Normal Deactivation Four beeps and flashes Vibrator alarm activates briefly Countdown initiates
Pump Alarm Two beeps and flashes and flashes HIGH displays The vibrator alarm activates
Confidence Beep One beep every 1-120 seconds (user-defined) Note Confidence beep automatically deactivates during a low battery alarm.
Heartbeat flashes once every second

Note If enabled, during an alarm condition the Latched Alarms option causes the low and high gas alarms (audible, visual, and vibrator) to persist until the alarm is acknowledged (by pressing ) and the gas concentration is below the alarm setpoint. The LCD continues to display the high peak concentration until the alarm condition no longer exists. Enable/disable Latching Alarms in Fleet Manager II. Local regulations may require the Latching Alarms option be enabled.