MeshGuard LEL IR & CO2 IR User’s Guide
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6. Diagnostic Mode
Diagnostic Mode provides raw data from sensors and about settings.
6.1. Entering Diagnostic Mode
Note: To enter Diagnostic Mode, you must begin with the MeshGuard LEL IR or MeshGuard CO2
IR turned off.
Press and hold [Y/+] and [MODE] until the MeshGuard LEL IR starts.
The instrument goes through a brief startup, and then displays “dIA” to indicate it is in Diagnostic
Mode. It then switches to showing raw data for the sensor (the display shows “rAU” followed by a
number, or “- - -” if there is no diagnostic information).
The following chart shows how to navigate Diagnostic Mode (pressing [N/-] repeatedly steps
through the screens):
6.2. Exiting Diagnostic Mode
Note: You can exit Diagnostic Mode and enter Programming Mode and calibrate the MeshGuard
LEL IR as usual by pressing both [MODE] and [N/-] for three seconds. When entering Programming
Mode from Diagnostic Mode, additional menu options are available. Refer to the diagram on page
36 for more details.
Note: You can exit Diagnostic Mode and enter Detection Mode by pressing [MODE] and [Y/+]
together for three seconds, or by turning it off and on again.
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