Honeywell Experion MX Operator's Manual page 47

Note that laser radiation status is not included in the operation of these
indicators.
ATTENTION
All indicators use redundant PCB mounted LEDs with feedback to allow confirmation of
proper operation back to the supervisory system for diagnostic alarms.
Indicators on the head are not sensor-specific. The green indicator will be lit only when all
sensor shutters are closed (see Figure 43 and Figure 45).
Fig. 43.
The red indicator will be lit when any sensor shutter is commanded to open (see Figure 44
and Figure 46).
Fig. 45.
To determine which sensor shutter is open, observe the smaller red indicators directly over
the radiation sensor row on the scanner user panel (see Figure 46).
Fig. 46.
Amber indicator rings surrounding sensor buttons indicate whether a specific sensor of a
hazard type has been enabled. When the ash sensor, which uses Xrays, is enabled with the
key and button press, power to the X-ray source is turned on. The red indicator above the
6510020335
Green Shutter Closed Indicator On Head
Red Shutter Open Indicator On Head
Fig. 44.
Green Shutter Closed Indicator On User Panel
Red Shutter Open Indicator On User Panel
SCANNER SAFETY AND LOCAL CONTROLS
47