RKI Instruments INC RKI Instruments GX-3R Confined Space 4 Gas Personal Gas Detector 72-RA-C

RKI Instruments

GX-3R Confined Space 4 Gas Personal Gas Detector 72-RA-C

The GX-3R is the worlds smallest 4 gas monitor weighing only 3.52 ounces and can comfortably be clipped within a worker’s breathing zone (2.2” W x 2.55” H x 1.02” D). It simultaneously monitors and displays LEL combustibles; O2; CO (Hydrogen compensated CO also available); and H2S.

FEATURES:

• Simultaneous detection of 4 gases.
• Smallest & lightest 4 gas monitor.
• Simple 2-button operation.
• Non-Compliance Indicator.
• Alarms: audible; visual; & vibration.
• 3 user adjustable alarm levels.
• Impact resistant body with removable rubber boot.
• Large LCD Auto-backlit display.
• 25 hours of operation (Lithium-ion battery).
• Field replaceable sensors & filters.
• Water and dust resistant design; IP66/68.
• 3 Year warranty.

APPLICATIONS:

• Personal monitoring.
• Confined spaces.
• Refineries/petrochemical.
• Utilities.
• Oil and Gas.
• Water/Wastewater.
• Fire Services.
• Construction.

SPECIFICATIONS:

Gas Detection Specifications (Part 1)
Gas Detected	Sensor Slot	Detection Principle
(CO) H2 Compensated	1	EC
Carbon Monoxide (CO)	1	Dual EC
Hydrogen Sulfide (H2S)	1	Dual EC
H2S Only	1	EC
Combustible Gases (Methane as standard)	2	Catalytic combustion
Oxygen	3	EC
Gas Detection Specifications (Part 2)
Gas Detected	Detection Range (Increments)	Accuracy Statement
(CO) H2 Compensated	0 ~ 2;000 ppm (1 ppm)	± 5% of reading or ± 2 ppm CO
Carbon Monoxide (CO)	0 ~ 2;000 ppm (1 ppm)	± 5% of reading or ± 5 ppm CO (whichever is greater)
Hydrogen Sulfide (H2S)	0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S (whichever is greater)
H2S Only	0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S (whichever is greater)
Combustible Gases (Methane as standard)	0 ~ 100% LEL (1% LEL)	± 5% of reading or ± 2% LEL (whichever is greater)
Oxygen	0 ~ 40% Vol. (0.1%)	± 5% of reading O2
General Specifications
Sampling Method	Diffusion sampling standard (hand aspirator or clip-on motorized pump optional).
Display	Digital LCD displays with 7 segment plus 14 segment plus icon.
Preset Alarms (User Adjustable) Overscale Alarm (Non-Adjustable)
1st alarm: 25.0 ppm2nd alarm: 50.0 ppm3rd alarm: 1200.0 ppmTWA alarm: 25.0 ppmSTEL alarm: 200.0 ppmOver alarm: 2000.0 ppm
1st alarm: 5.0 ppm2nd alarm: 30.0 ppm3rd alarm: 100.0 ppmTWA alarm: 1.0 ppmSTEL alarm: 5.0 ppmOver alarm: 200.0 ppm
1st alarm: 10% LEL2nd alarm: 25% LEL3rd alarm: 50% LELOver alarm: 100% LEL
Types of Alarms	Gas Alarm: 3 Increasing alarms; STEL; TWA; overscale alarm. O2 decreasing/increasing.
	Trouble Alarm: Sensor disconnection; low battery; circuit error; calibration range error.
Display of Alarm	Gas Alarm: Flashing LEDs; continuous buzzer (100 db @ 30 cm); flashing gas value; vibration.
	Trouble Alarm: Flashing LEDs; intermittent buzzer (95 db @ 30 cm); display of error message.
Operating Temp. & Humidity	-20°C ~ +50°C [ -4°F ~ +122°F ]; 10 to 90% RH; non-condensing (continuous environment).
	-40°C ~ +60°C [ -40°F ~ +140°F ]; 0 to 95% RH; non-condensing (temporary environment; 15 minutes).
Response Time	Within 30 seconds (T90)
Power Source	Lithium-ion battery; Approx. 25 hours after a 3 hour full charge.
Approvals	ATEX; CSA
Dimension & Weight	2.2” W x 2.55” H x 1.02” D (Approx. 58 W x 65 H x 26 D mm); 3.52 ounces (approx. 100 g) without rubber booth.
	2.4” W x 2.63” H x 1.06” D (Approx. 61 W x 67 H x 27 D mm); 3.70 ounces (approx. 105 g) with rubber booth.
Case Material	Explosion proof; dust and water resistant to IP-66/68 (2m;1h) approval. Drop height 23 ft.
Controls	Two buttons: POWER / MODE; AIR
Datalogging	Logs user ID; station ID; Calibration & Bump Test history; Alarm Events & Alarm Interval Trends.
Warranty	Three years material and workmanship.
Accessories
Standard Accessories	• Alligator clip
	• Protective rubber boot		• A/C Charger		• Calibration Adapter
	Optional Accessories	• SDM-3R calibration station
		• RP-3R Clip-on sampling pump with 4” rubber nipple; 10’ hose and probe (up to 40’ hose available)		• Padded carrying case for GX-3R and accessories		• USB to IrDA downloading cable for datalogger

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