Testing The Sensor Module Lights - 3M SCOTT AIR-PAK X3 PRO Operating & Maintenance Instructions

Table 2-1 summarizes the operation of the HUD lights:
BEHAVIOR OF LIGHTS
2 glowing green lights
1 glowing green light
1 slowly flashing yellow light
1 rapidly flashing red light
Table 2-1 Heads-Up Display Indicator 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.
Figure 2-10 shows the sensor modules on
the respirator, and Table 2-2 on page 15
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
page 65.)
ACTION OR SITUATION
Start Air-Pak (i.e., open cylinder valve)
Normal operation
Air cylinder between 1/2 and 1/3 full
Air cylinder less than 1/3 full (low air)
Low battery while unit is on
Shut down
Press reset button on control console with unit off
(battery test)
Press manual alarm button on control console with
unit off
Press reset button on control console during full
alarm
PASS pre-alarm
PASS full alarm
Table 2-2 Operation of Sensor Module Lights
P/N 595373-01 Rev C
MEANING
Full Cylinder
3/4 full Cylinder
1/2 full Cylinder
1/3 full Cylinder
Sensor Module
BEHAVIOR OF LIGHTS
Bright light, then flashing green light
Flashing green light
Flashing yellow light (2 quick flashes) every second
Flashing yellow light (alternately)
Flashing yellow light once every 2 seconds
Off
Good battery: Bright light, then flashing green light
Low battery: Bright light, then flashing red light
Flashing red light (simultaneously)
Flashing green light
Flashing red light (alternately)
Flashing red light (simultaneously)
202004
PERFORMING OPERATIONAL TESTING
USER ACTION
Continue using respirator
Continue using respirator
Continue using respirator
Leave hazardous area immediately
Figure 2-10 Sensor modules
Sensor Module
15