GX-3R Pro Operator’s Manual Chapter 1: Introduction • 8
Chapter 1: Introduction
Overview
This chapter briefly describes the GX-3R Pro gas monitor. This chapter also describes the
GX-3R Pro Operator’s Manual (this document). Table 1 at the end of this chapter lists the
specifications for the GX-3R Pro.
About the GX-3R Pro
Using an advanced detection system consisting of up to four gas sensors, the GX-3R Pro personal
five-gas monitor detects the presence of combustible gas, oxygen (O
2
), carbon monoxide (CO),
hydrogen sulfide (H
2
S), and CO
2
or a super toxic gas simultaneously. The GX-3R Pro’s compact
size and easy-to-use design make 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-3R
Pro offers a full range of features, including:
• Simultaneous monitoring of one to five gases
• Liquid crystal display (LCD) for complete and understandable information at a glance
• Ultrabright alarm LEDs
• Distinctive audible/vibrating alarms for dangerous gas conditions and audible alarms for
unit malfunction
• Microprocessor control for reliability, ease of use, and advanced capabilities
• Data logging functions
• Alarm trend data
• STEL, TWA, and over range alarms
• Peak readings
• Built-in time function
• Lunch break feature
• CSA “C/US” classified as intrinsically safe (see Table on page 9)
WARNING: The Model GX-3R Pro detects oxygen deficiency, elevated levels of oxygen,
combustible gases, carbon monoxide, and hydrogen sulfide, all of which can be
dangerous or life threatening. When using the GX-3R Pro, 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-3R Pro as described in this manual.
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