M90 Chemical Agent Detector
©Brooke Clarke 2011
Background
Provides stand alone nerve and
blister
agent detection.
There is a newer version called the M90-D1.
Description
Uses Ion Mobility Spectrometry (IMS,
Wiki))
to
determine
the
presence of toxic vapors. There is an
Americium-241 (Wiki)
radioactive source that's used to ionize the incoming vapor so
that the
drift times of the various compounds can be measured.
Weight with battery 15 pounds.
Dimensions: 11"L x 4"W x 11"H.
Components
M90 Detector Unit
|
|
Battery Case
|
|
M90-RH2 Remote Alarm Unit
|
|
M90-MP1 Main Power Supply
|
|
M90-BC Battery Charger
(Ni-Cad
only)
|
|
M90-MP1 Vehicle Power
Supply
|
|
M90-IT2 Inlet Tube
|
|
M90-FT/S Filter Tool
|
|
M90-CC Communications Cable
|
|
Sample kit containing 2
stimulants (nerve & blister)
|
|
M90-CB Carrying Bag
|
|
DC Power
Uses the same batteries as the
PRC-25 or
PRC-77,
or
the
257477BA 10 "D" cell
Battery
Adapter.
M90
p/n
|
Common
p/n
|
Hours
|
M90-LB
|
BA-5598/U
|
16
|
M90-NB
|
Ni-Cad
Battery ___???___
|
8
|
M90-MB
|
BA-4386
|
16
|
Patents
5047723 Method for detection of
foreign matter contents in gases, Pertti
Puumalainen, Sep 10, 1991,
324/464,
73/28.02,
324/71.3,
250/287,
324/459
Marked inside the M90.
Works in a way similar to an ionization smoke detector, but
instead of just measuring the current in a single ionization
chamber there are input and output chambers and the current is
read in all of them to figure out what chemicals are in the gas.
7071465
Ion mobility spectrometry method and apparatus, H Henderson Hill,
Jr.,
M Tam (Washington State U), Jul 4, 2006,
250/286 ;
250/281;
250/282; 250/288
Links
Temet - Environics -
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