Chapter 3 __________________________________________________ Installation
VAISALA__________________________________________________________23
Startup Tests for LM21 with
FS11
To test the operation of LM21 Background Luminance
Sensor, open the maintenance line with the OPEN
command using a maintenance terminal connected to the
FS11 interface enclosure. With the STA command the unit
sends a status message, which now contains the background
luminance reading sent by LM21.
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