Transcript PPT: M88 Alarm

Amphibious Construction Battalion TWO
CBR
M88 Chemical Agent Alarm System
What does the M88 do?
The M88 Detector responds to
NERVE & MUSTARD
agent vapors to the lowest hazard level that could
affect personnel over a short period.
The M88 is Used:
• By front line troops to detect incoming chemical agents
• To provide early warning to rear echelon troops
• To monitor the air during decontamination operations
M88 Detector Components
The M88 is made up of:
• M22 Detector Unit
• M42 Remote Alarm
• M28 Power Source
How is the M88 used?
Deploying the M88
M22
M22
150M
WIND
300M max
M-42 M-42 M-42 M-42 M-42
…
M-42 M-42 M-42 M-42 M-42
…
...M-42 alarms can be a max distance of 400M from the M-22
Reading the Display
“Wait” light, shows when the
unit is doing self-test
Nerve agent bar graph
(bars will show “yellow”)
Alarm light, shows when bar
graph
3 or
more
Blisterexceeds
agent bar
graph
(bars will show “yellow”)
Sampling light, shows when
unit is actively sampling air
Start-up & Self Test
• All indicators light for 1 sec. Then
extinguish
•All bars light on the “G” bar graph
•All bars light on the “H” bar graph
• “S” sampling light will turn on
• “ALARM” light will turn on
• M88 audible alarm will sound
• M42 alarms (if connected) will sound
• The “W” WAIT light will turn on
• All indicator lights will extinguish after
about 5 seconds
• Bars G1 and H8 and the G8 and H1 will
alternately light for 10 seconds
• The “W” light will remain on for a min. of
2 minutes
• The “W” will go out and the “S” will go
on, indicating that it is now sampling
The Confidence Test
THE UNIT MUST OPERATE 5 MINUTES WITH THE“S” LIGHT ON
BEFORE PERFORMING THE CONFIDENCE TEST!
• Verify that the “S” light is on, and put the “G” stimulant in
contact with the vapor inlet
• HOLD FOR NO MORE THAN 1 SECOND
• Remove the stimulant and verify that 3 or more bars in the
“G” bar graph are shown
• If less than 3 bars are shown, wait 5 minutes and reperform the test
• Repeat the procedure for the “H” sample after the “G” test
clears
Interference
•
When operational (the green “S” light is on), the unit will
detect:
- GA (nerve agent Tabun) - GB (nerve agent Sarin)
- GD (nerve agent Soman) - VX (persistent nerve agent)
- HD (Distilled mustard)
•
- L (mustard agent Lewisite)
It will ALSO DETECT:
- JP8 Fuel
- Brake Fluid
- AFFF
- Malathion Insecticide
- Ben Gay
- Tear Gas
- Oil of wintergreen (Life Saver’s!)
Shutdown Procedures
•
The M88 can be shut down while still showing bars in the
G or H bar graphs
– If time allows, let the unit run until clear (shows 1 or no bars on
the graph)
•
•
Turn the power knob to “0”
Re-install the protective caps