Riken Keiki GX-3R Portable Gas Monitor

Overview of Riken Keiki GX-3R Portable Gas Monitor

This chapter briefly describes the GX-3R gas monitor. This chapter also describes the GX-3R Operator’s Manual . Table 1 at the end of this chapter lists thespecifications for the GX-3R.

About the GX-3R

Using an advanced detection system consisting of up to three gas sensors, the GX-3R

personal four-gas monitor detects the presence of combustible gas, oxygen (O2), carbon

monoxide (CO), and hydrogen sulfide (H2S) simultaneously. The GX-3R’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-3R offers a full range of features, including:

• Simultaneous monitoring of one to four 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

Category Portable gas detector

Type Multi gas

Target gas LEL/O2/CO/H2S

Detection range 0～100%LEL(HC/CH4)

0～40vol%(O2)

0～2000ppm(CO)

0～200ppm(H2S)

Sampling method Diffusion

Type of alarm Gas alarms, Fault alarms

Display of alarm Flashing light, buzzer, vibration

Explosion proof Intrinsically safe

Ingress proof rating IP66/68

Approvals ATEX, IECEx

Power source Direct charging Ni-MH battery pack

(Can be fast charged in just 180min)

Continuous operation Approx. 40 hours after full charge

(with long battery mode)

Dimensions & Weight Approx. 58(W) x 65(H) x 26(D) mm

Approx. 100g

Operating temperature & Humidity -40℃ to 60℃, (-40 to 140F)

Features:

Smallest & lightest 4 gas monitor

Simultaneous detection of LEL, O2, H2S, & CO

H2 Compensated CO sensor available

Simple 2-button operation

Audible, visual, & vibration alarms with 3 user adjustable levels

25 hours of operation with lithium-ion battery

Water and dust resistant design (IP66/68)

Non-compliance indicator for calibration and testing adherence

Dual-filament LEL sensor for enhanced resistance to silicone poisoning

Electrochemical O2 sensor with 3 to 5-year lifespan

Combo micro sensor for H2S and CO detection

± 5% accuracy for precise readings

Digital LCD display for easy monitoring

Accessories include clip-on sampling pump and calibration station

Three-year warranty for peace of mind