6 • Introduction
GX-2009 Operator’s Manual
Introduction
Using an advanced detection system consisting of four gas sensors, the GX-2009 personal
four-gas monitor detects the presence of combustible gas, oxygen (O
2
), carbon monoxide
(CO), and hydrogen sulfide (H
2
S) simultaneously. The GX-2009’s compact size and easy-to-
use design makes it ideally suited for a wide range of applications, including sewage treatment
plants, utility manholes, tunnels, hazardous waste sites, power stations, petrochemical
refineries, mines, paper mills, drilling rigs, and fire fighting stations. The GX-2009 offers a
full range of features, including:
•
Simultaneous four-gas monitoring and display of combustible gases, O
2
, CO, and H
2
S
•
Backlit LCD (liquid crystal display) for complete and understandable information at a
glance
•
Distinctive audible/vibrating alarms for dangerous gas conditions and audible alarms for
unit malfunction
•
Microprocessor control for reliability, ease of use, and advanced capabilities
•
Resistance to RF (radio frequency) interference
•
Datalogging including interval trend data and alarm trend data
•
STEL/TWA and over range alarm display
•
Peak hold readouts
•
Built-in time function
•
Lightweight and compact high impact plastic case
•
Rotatable alligator clip for “hands-free” gas monitoring, belt clip optional
•
CSA classified for Class I, Division I, Groups A, B, C, and D hazardous atmospheres
WARNING: The GX-2009 detects oxygen deficiency and elevated levels of oxygen,
combustible gases, carbon monoxide, and hydrogen sulfide, all of which can
be dangerous or life threatening. When using the GX-2009, you must follow
the instructions and warnings in this manual to assure proper and safe
operation of the unit and to minimize the risk of personal injury. Be sure to
maintain and periodically calibrate the GX-2009 as described in this manual.
NOTE:
Only the combustible gas detector portion of this instrument has been assessed for
performance.
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