PCE Instruments Crowcon Xgard Bright Manuel De L'utilisateur Et De L'opérateur page 27

Xgard Bright
If the diagnostic checks were successful, the gas status screen will be displayed. In
normal operation the gas level will be indicated on the display.
50
lel
%
When alarms are present the status is indicated on the display by the text "!-ALM1" or
"!-ALM2" which alternates with the gas value present.
If a fault is present then this is indicated on the display by "F" being displayed between
the gas value and the units indication.
Warning: Xgard Bright sensor modules are NOT compatible with Xgard sensor
Modules.
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