GX-3R Confined Space 4 Gas Monitor

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Smallest & lightest 4 gas monitor

Simultaneous detection of 4 gases; LEL, O2, H2S & CO

H2 Compensated CO sensor available

Simple 2-button operation

Alarms: audible, visual, & vibration

3 user adjustable alarm levels

25 hours of operation (Lithium-ion battery)

Water and dust resistant design, IP66/68

3 Year warranty
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.

The GX-3R represents the latest evolution of gas detection technology utilizing a new generation of micro sensors. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. The new O2 sensor is electrochemical with a 3 to 5 year life span. H2S and CO are now available in a combo micro sensor.

Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds in the following conditions; if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. The 30 second interval is adjustable.

OSHA defines the breathing zone as a ten inch radius around the worker’s nose and mouth, and requires that worker exposure monitoring air samples be collected in the breathing zone. Air sampling filters may be attached to the collar or lapel. Traditionally this means only a single gas monitor would be small enough for a worker to practically wear a gas monitor ‘In the breathing zone’. Now there is a 4 gas monitor smaller than many single gas monitors.
Personal monitoring

Confined spaces

Refineries/petrochemical

Utilities

Oil and Gas

Water/Wastewater

Fire Services

Construction

Gas Detected	(CO) H2 Compensated	Carbon Monoxide(CO)	Hydrogen Sulfide(H2S)	H2S Only	Combustible Gases (Methane as standard)	Oxygen
Dual Sensor
Sensor Slot	1	2	3
Detection Principle	EC	Dual EC	EC	Catalytic combustion	EC
Detection Range (Increments)	0 ~ 2,000 ppm (1 ppm)	0 ~ 200.0 ppm (0.1 ppm)	0 ~ 100% LEL (1% LEL)	0 ~ 40% Vol. (0.1%)
Accuracy Statement	± 5% of reading or ± 2 ppm CO	± 5% of reading or ± 5 ppm CO (whichever is greater)	± 5% of reading or ± 2 ppm H2S (whichever is greater)	± 5% of reading or ± 2% LEL (whichever is greater)	± 0.5% of reading O2
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 ppm 2nd alarm: 50.0 ppm 3rd alarm: 1200.0 ppm TWA alarm: 25.0 ppm STEL alarm: 200.0 ppm Over alarm: 2000.0 ppm	1st alarm: 5.0 ppm 2nd alarm: 30.0 ppm 3rd alarm: 100.0 ppm TWA alarm: 1.0 ppm STEL alarm: 5.0 ppm Over alarm: 200.0 ppm	1st alarm: 10% LEL 2nd alarm: 25% LEL 3rd alarm: 50% LEL Over 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, IECEx, MED
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	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
Standard Accessories	Alligator clip, protective rubber boot, charger, and 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
Warranty	Three years material and workmanship

Part #	Description
07-6057	Sensor gasket, GX-3R
07-6058	Sensor case o-ring, GX-3R
10-1086	Screw with flat and lock washers, M2 x 4 phillips
10-1087	Screw, GX-3R sensor cap & battery pack, 3/16 phillips
13-0112RK	Wrist strap
13-0124	Alligator clip with installation screws
13-0125	Belt clip with installation screws
20-0332	Rubber boot for GX-3R
21-1950	LCD protective film for GX-3R/GX-3R Pro
21-1962	Bottom cover (sensor cap), GX-3R
21-1963	Sensor retainer, GX-3R
21-1967	Rear case assembly with Li-ion battery, GX-3R
21-1968	Front case with overlay, GX-3R
29-0715	Label, case sensor, CO, LEL, O2, GX-3R
33-0183	Sensor dust filter with internal gasket for GX-3R
33-0183-10	Sensor dust filters with internal gasket for GX-3R, 10-pack
33-0553	Buzzer protection cover for GX-3R
33-7130	Scrubber disk filter for H2S/CO sensor 5-pack
33-7131	Scrubber disk filter for LEL sensor, 5-pack
33-7132	Scrubber disk filter, charcoal, for CO & H2 comp CO sensor, GX-3R/GX-3R Pro, 5-pack
33-7133	Humidity filter disk for H2S sensor, GX-3R/GX-3R Pro, 5-pack
51-1142	LCD module with cable, for GX-3R
57-2098	Li-Ion battery with battery board
ESR-A1DP-COHS	Sensor, H2S/CO combo for GX-3R/GX-3R Pro
NCR-6309	Sensor, LEL for GX-3R/GX-3R Pro
ESR-X13P-OXY	Sensor, O2 for GX-3R/GX-3R Pro
ESR-A13I-H2S	Sensor, H2S for GX-3R/GX-3R Pro
ESR-A13P-CO	Sensor, CO, GX-3R/3R Pro
ESR-A1CP-CO-H	Sensor, CO with H2 compensation for GX-3R/GX-3R Pro

GX-3R Confined Space 4 Gas Monitor

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Southern Alabama Safety LLC