The ultimate in
gas leak detection
Gas Hunter
™
The First Responders Best Friend In The Field
• Multiple functions: seven instruments
in one small package
• Simple operation
• Auto-zero at start up
• Auto-ranging in combustible gas mode
• 3 ranges of sensitivity – PPM, LEL and
% gas by volume
• State-of-the-art patented sensor
technology: one combustible sensor
for PPM thru 100% gas by volume
• Confined space protection for 3 gases
• Audible and visual alarms
Gas Hunter™–
On the lookout for leaks.
Gas Hunter™–
On the lookout for leaks.
• Pressure and draft measurements
• Ambient and air-free carbon monoxide
capability
• Superior on-board diagnostics
• Intrinsically safe
• Compatible with Bacharach’s docking station
• Low cost of ownership
• Manufacturer of instruments for the natural gas
industry for over 50 years
• Made in the U.S.A.
• Backed by Bacharach’s commitment to quality,
service and reliability
In the field, the Gas Hunter does the job of seven individual
instruments to optimize technician efficiency in leak survey operations
and customer service calls. It is able to sniff out combustible gases
from part per million levels to 100% volume through auto-ranging.
Sensitive and compact, it requires minimal operator training.
Bacharach – Leading manufacturer of high-quality instruments for the natural gas industry for over 50 years
In the field, the Gas Hunter does the job of seven individual
instruments to optimize technician efficiency in leak survey operations
and customer service calls. It is able to sniff out combustible gases
from part per million levels to 100% volume through auto-ranging.
Sensitive and compact, it requires minimal operator training.
Seven Instruments in One Small, Rugged Package
Air-Free Carbon Monoxide
In some situations, ambient measurement of carbon monoxide alone may
not be adequate. ANSI Z21.1 standard requires an Air-Free calculation for
appliance emissions in furnace flues, oven vents and space heaters. Both
ambient and air-free carbon monoxide measurement are readily available in
the Gas Hunter.
Confined Space Entry
In the safety mode, audible and visual alarms are activated at OSHA preset
levels for combustibles (in the lower Explosive Level), carbon monoxide and
oxygen (in enriched and deficient atmospheres). The Gas Hunter serves
as a trusty watchdog for technicians working in vaults, trenches or other
confined areas.
Pressure Monitor
Who is to say that a combustible gas detector must be limited to just
detecting gas? The addition of low range (0.0 to 27.7" wc) pressure function
further separates the Gas Hunter from the competition. Aside from one
less tool to carry to the worksite, this function eliminates the use of messy
liquid monometers and erratic spring gauges. It gives the service tech the
convenience of quick, accurate gas pressure checks on regulators
and appliance manifolds.
Draft Gauge
In the flue mode, the Hunter offers yet another tool alternative in the
0.00 to negative 28
" of water column draft function. This enables the service
technician to utilize a more accurate and sophisticated method to check draft
in hot water tanks and furnace flues.
Leak Search
The PPM range of the Gas Sampling mode offers visual, segmented
bar-graph, and audible detection of natural gas leaks from 50 ppm to
2,500 ppm. The Hunter serves as an excellent tool for tracking
down small leaks; replacing messy soap bubble solutions and broadband MOS type instruments.
Leak Survey
Higher concentrations of natural gas are easily measured from 0.2 to 100%
volume gas with no operator intervention. Auto-ranging makes leak
investigations and bar-holing operations simple through Bacharach’s
patented sensing technology. This minimizes operator training and
eliminates confusing range settings, over-range messages and damage to
catalytic sensors as a result of high gas concentration exposure.
Carbon Monoxide Calls
The 0-1000 ppm carbon monoxide function eliminates yet another
instrument that the First Responder must carry on the job. Residential
CO surveys are reliably and easily performed with the Gas Hunter. In
addition, oxygen and combustible gas levels
are monitored simultaneously,
but displayed through
individual readings.
Bar-holing application
Leak search application
55-8001 Gas Hunter Kit includes: 4’ polyurethane
coiled hose with 10” aluminum probe
assembly. 3 AA alkaline batteries, laminated
methane/pressure reference
card and 2 inlet filters.
55-3001 30” plastic bar hole probe
3474-1210 30” aluminum bar hole probe
55-0063 Water trap/filter assembly for
barholing applications
55-8005 Flue probe assembly with sample and
draft lines, a water trap/filter assembly and
quick connect fittings
24-1107 Water trap/filter assembly for flue
probe 55-8005
07-1644 Filters, package of 3 for 24-1107 water trap
and 55-0063 water trap
55-7100 Foam filters for standard 10" aluminum
probe assembly and barhole probes.
Box of 10
55-7400 Charcoal filters for standard 10"
aluminum probe assembly and barhole
probes. Box of 10
55-0045 Inlet filters for instrument (package of 2)
55-0046 Gas samping tubing coupler
55-0038 Pressure tubing assembly with
1/8” quick connect socket
55-0087 Soft carrying case w/strap
55-0039 Hard ABS plastic carrying case
55-8002 Calibration kit (less calibration gas)
includes on-demand regulator, 3 feet
of 1/4" tubing, and a quick-connect female
fitting
55-0068 Calibration gas, 2.5% Methane,
100 ppm CO, 18.5 O
2
in Nitrogen,
103 L Tank
55-0060 Calibration gas, 100% Methane,
58 L Tank
51-7131 Calibration gas, zero air, 20.9% O
2
in air,
103 L Tank
51-1121 Calibration gas, 2.5% Methane in air,
103 L Tank
51-1994 Calibration gas, 100 ppm Carbon
Monoxide in air, 103 L Tank
55-0040 Combustible gas sensor
54-7001 Oxygen sensor
54-7003 Carbon monoxide sensor
Part #
Description
Specifications
Ordering Information
©June 2002, Bacharach, Inc., all rights reserved. All information herein is
subject to verification. Product Catalog 4161. 6/02 5M HMC. Printed in U.S.A.
The Gas Hunter includes a 10" gas
sampling probe, coiled gas tubing with
quick-connect fittings, 2 inlet filters, 3
AA batteries and a pocket size pressure
and gas conversion card. In addition, a
wide range of accessories are available
such as a hard carrying case, a soft
carrying case, a service line pressure
kit, a flue probe, a water trap and 30"
barhole probes.
Size
4.7 x 2.3 x 4.35 inches (11.9 x 5.8 x 10.9 cm)
Batteries
3 - AA disposable alkaline batteries
Measurement
Ranges
Natural Gas
PPM: 0 - 2500 ppm
LO%: 0.2 to 5.0%
vol. gas
HI%: 0 to 100%
vol. gas
Accuracy
Natural Gas
LO%: ± 0.3% gas
HI%: ± 3% gas
Pressure
± 3% or ± 0.2 in H
2
O
of reading, whichever
is greater
-4 to +122˚ F (-20 to 50˚ C)
10 to 90% R.H. (non-condensing)
Operating
Environmental
Conditions
Weight
29 ounces (822 grams) without probe assembly
Warm Up Time
1 minute
Response Time
Gas: 20 seconds to 95% of final value
O2: 20 seconds to 95% of final value
CO: 20 seconds to 95% of final value
Pressure: < 3 seconds to 95% of final value
Battery Life
Typically 6-8 hours of continuous operation
Agency
Approvals
MET lab certified to UL913 and CSA C22.2-157,
intrinsically safe for use in Class I, Division 1,
Groups A, B, C & D hazardous areas
Warranty
1 year, including sensors
Carbon Monoxide
0 - 1000 ppm in
1 ppm increments
Oxygen
0.0 - 25.0% vol.
CO Air-Free
0 - 9,999 ppm
Pressure/Draft
Pressure: 0.0 - 27.7 in H
2
O
Draft: autoranges between
–0.01 to –0.99,
–1.0 to –9.9
–10 to –28 in H
2
O
Carbon Monoxide
± 5% of reading or
± 3ppm, whichever
is greater
Oxygen
± 0.5% O
2
Case Material
Anodized aluminum extrusion with rubber
bumpers on end caps
Calculated
Ranges
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