PERFORMING OPERATIONAL TESTING
P/N 595373-01
Rev
C
202004
15
summarizes the operation of the HUD lights:
Testing the Sensor Module Lights
When performing operational testing on
respirator units equipped with a PASS device
(distress alarm), verify that the sensor
module lights are operating properly.
describes how the lights behave for
particular actions or situations.
For more information about the sensor
module lights, see the manual for the Scott
Electronic Management System (SEMS) II.
(See
"Appendix I: Related Manuals” on
.)
Figure
2-10 Sensor modules
BEHAVIOR OF LIGHTS
MEANING
USER ACTION
2 glowing
green
lights
Full Cylinder
Continue using respirator
1 glowing
green
light
3/4 full Cylinder
Continue using respirator
1
slowly
flashing
yellow
light
1/2 full Cylinder
Continue using respirator
1
rapidly
flashing
red
light
1/3 full Cylinder
Leave hazardous area immediately
Table 2-1 Heads-Up Display Indicator Lights
ACTION OR SITUATION
BEHAVIOR OF LIGHTS
Start Air-Pak (i.e., open cylinder
valve)
Bright light, then flashing green light
Normal operation
Flashing green light
Air cylinder between 1/2 and 1/3 full
Flashing yellow light (2 quick flashes) every second
Air cylinder less than 1/3 full (low air)
Flashing yellow light (alternately)
Low battery while unit is on
Flashing yellow light once every 2 seconds
Shut down
Off
Press reset button on control console with unit off
(battery test)
Good battery: Bright light, then flashing green light
Low battery: Bright light, then flashing red light
Press manual alarm button on control console with
unit off
Flashing red light (simultaneously)
Press reset button on control console during full
alarm
Flashing green light
PASS pre-alarm
Flashing red light (alternately)
PASS full alarm
Flashing red light (simultaneously)
Table 2-2 Operation of Sensor Module Lights
Sensor Module
Sensor Module
Summary of Contents for SCOTT AIR-PAK X3 PRO
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