GX-3R Confined Space 4 Gas Monitor
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
Literature & Manuals
GX-3R Product Datatsheet
GX-3R Quick Reference Guide
GX-3R Manual
GX-3R Manual TIIS approved version
GX-3R Datalogging Manual
IrDA Cable Driver Installation Guide
IRDA Reprograming Instructions (step by step procedure)
GX-3R Software
Datalogging Software for GX-3R (06228) ZIP file
Certificates / Approvals
TIIS Certificate
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
