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If the unit fails the self-test, a warning icon
unit will then wait for the self-test to be repeated.
If unsuccessful following a few attempts, do not use the instrument and contact ION Science.
User ID Display
I
f programmed with a "User ID" via the IR Link, the image below will appear on the screen. The "User ID"
consists of up to 6 digits and alphabetic characters. If this has 6 characters, it will show 3 characters across 2
screens.
Peak Reading Display
If an ARA has been exposed to a gas concentration that exceeds the LOW or HIGH alarm set points, the
detector will display the "max" icon.
If the "max" icon is displayed, the peak (maximum) value will be displayed as shown below.
To determine the max peak value detected by the ARA, press the button.
The screen will then automatically scroll to display the LOW Alarm setting, HIGH Alarm setting, maximum peak
value, elapsed time since peak reading was detected (in hours, days and months) and finally, the option to
clear peak reading and reset to zero (0 ppm for toxic sensors and 20.9% for Oxygen sensor).
Max Peak Value
Pioneering Gas Sensing Technology.
will appear and the sensor type icon will start to blink. The
Elapsed Time
Page 11 of 27
ARA Instrument User Manual V1.1
Clear Peak
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