7
may also be used to charge the battery.
The Charging Indicator will glow red while the
Model 950-ASH is charging. Battery is fully charged
when the Charging Indicator glows green.
Complete charge time is up to 24 hours.
NOTE: charging via computer USB port may take longer.
USB Charging Wall Plug Power Cube and Mini-USB Cord
TROUBLESHOOTING
●
When turned ON, the needle on the Analog Meter
fully defl ects:
The Sensor may be contaminated or the atmosphere
may be contaminated. The 950-ASH is an extremely
sensitive instrument and care must be taken to
ensure no hydrocarbon or accelerant residue
remains in or located near the Sensor.
• When initially turning the detector ON, be sure
Detection Range Control is rotated completely
counterclockwise without turning OFF.
• Allow unit to warmup. The Power Indicator will
glow steady Blue when ready.
• Turn the Purge feature ON to clear the Sensor and
allow any absorbed contaminant or residue to be
burned off .
• Allow the detector to remain ON for several
minutes in a clean, draft-free environment.
• Set the Sensitivity.
●
Sensor will not respond to hydrocarbons or
accelerants:
•
Some hydrocarbons and accelerants have odor
additives that can be mistaken for hydrocar-
bon or accelerant vapor. You may be noticing
this odor after all of the hydrocarbon/accelerant
vapor has completely volatilized away and only
the odorizer remains.
• The hydrocarbon or accelerant might not be
vaporizing due to many factors including
temperature and type of hydrocarbon or acceler-
ant.
• Allow suffi
cient time for a true reading. It
may be necessary to wait several minutes for
accumulation of airborne vapor for detection.
●
Inconsistent readings:
• Sensor can absorb hydrocarbons/accelerants
that may cause an erratic response. This may
be due to extended periods of storage or a
contaminated atmosphere. Move to an area
known to be free of contaminants and use the
Purge feature to clear the Sensor.
HYDROCARBON, ACCELERANTS and GASES
DETECTED by MODEL 950-ASH
Partial list of common hydrocarbons and accelerants
that can be detected by the Model 950-ASH includes,
but is not limited to:
Fuels:
Kerosene • Gasoline • Diesel Fuel.
Hydrocarbons and their derivatives:
Methane • Ethane
• Propane • Butane • Pentane • Hexane • Heptane •
Octane • Propylene • Benzene • Toluene • Xylene
• Ethylene Oxide.
Halogenated Hydrocarbons:
Methyl Chloride • Methylene Chloride • Ethyl Chloride
• Ethylene Chloride • Ethylidene Chloride • Trichlo-
roethane • Vinylidene Chloride • Trichloroethylene •
Methyl Bromide • Vinyl Chloride.
Alcohols:
Methanol/
Ethanol • n-Propanol • Isopropanol • n-Butanol
• Isobutanol.
Ethers:
Methyl Ether • Ethyl Ether
Ketones:
Acetone • Methyl Ethyl Ketone.
Esters:
Methyl
Acetate • Ethyl Acetate • n-Propyl Acetate • Isobutyl
Acetate.
Nitrogen Compounds:
Nitro Methane • Mono
Methyl Amine • Dimethylamine • Trimethylamine •
Mono Ethyl Amine • Diethyl Amine.
Inorganic Gases:
Ammonia • Hydrogen • Hydrogen Cyanide.
