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If SHUT-DOWN alarms occur, the detector will generate an alarm, the LED will start to blink and the vibration
alarm will activate in 5-second intervals.
The alarms will be continuous until a user presses the button. If the user presses the button, the detectors
alarms will stop but a warning sign will remain on the screen.
Event Log
ARA stores the last 30 alarm events. The log system stores events on a first in first out basis. The events stored
in the unit can be downloaded using IR Link. The information stored includes:
•
The detector serial number
•
Life remaining on the detector
•
Number of self-tests performed
•
Number of warnings occurred and its cumulative time
•
Date of event log
•
Time elapsed since the alarm occurred
•
Duration of the alarm
•
Alarm level(s) in ppm or %
•
Type of alarms
•
Bump test (Yes or no)
Bump Test procedure
NOTE:
Ion Science recommend the below calibration gas concentrations when conducting bump tests and/or
calibrations.
Gas
Calibration Gas Span settings
The bump test interval can be changed by the user (via the IR-Link). The interval can be set from 1 to 365 days.
To deactivate this reminder, set the interval to zero.
NOTE:
The factory default is set to zero therefore the bump test is deactivated.
NOTE:
We recommend bump testing prior to each use to verify the sensor responds to gas.
If the detector needs bump-testing, the icon (
blinking. The top/right and top/left LEDs will also start to flash alternately at intervals of 32 seconds.
To conduct a manual bump test the following equipment will be required.
1) Ara calibration cap (included with each Ara)
2) Appropriate calibration gas
Pioneering Gas Sensing Technology.
H
S
CO
2
25ppm
100 ppm
) on the bottom right-hand side of the screen will be
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ARA Instrument User Manual V1.1
SO
O
2
10 ppm
18.0 %
ionscience.com
2
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