RKI GX-3R Confined Space 4 Gas Monitor (LEL, O2, H2S & CO)

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.

Meets or Exceeds ATEX,  CSA, IECEx, MED

Features:

• Smallest & lightest 4 gas monitor: 2.2" W x 2.55" H x 1.02" D, 3.52 ounces
• 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
• Stealth mode for law enforcement
• 3 Year warranty
• Simultaneous detection of 4 gases:
  • LEL, O2, H2S & CO
  • H2 Compensated CO sensor available
• 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
• Standard Accessories: Alligator clip, protective rubber boot, charger, and calibration adapter
• Datalogging: Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Interval Trends
• Case Material: Dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
• Power Source: Lithium-ion battery, Approx. 25 hours after a 3 hour full charge
• Response Time: Within 30 seconds (T90)
• 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)

Sensors Specifications: 

(CO) H2 Compensated:

• Sensor Slot: 1
• Detection Principle: EC
• Detection Range (Increments): 0 ~ 2,000 ppm (1 ppm)
• Accuracy Statement: ± 5% of reading or ± 2 ppm CO
• Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable): 1st alarm: 25.0 ppm / TWA alarm: 25.0 ppm / STEL alarm: 200.0 ppm / Over alarm: 2000.0 ppm

Carbon Monoxide (CO):

• Sensor Slot: 1
• Detection Principle: Dual EC
• Detection Range (Increments): 0 ~ 2,000 ppm (1 ppm)
• Accuracy Statement: ± 5% of reading or ± 5 ppm CO (whichever is greater)
• Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable): 1st alarm: 25.0 ppm / TWA alarm: 25.0 ppm / STEL alarm: 200.0 ppm / Over alarm: 2000.0 ppm

Hydrogen Sulfide (H2S):

• Sensor Slot: 1
• Detection Principle: Dual EC
• Detection Range (Increments): 0 ~ 200 ppm (0.1 ppm)
• Accuracy Statement: ± 5% of reading or ± 2 ppm H2S (whichever is greater)
• Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable): 1st alarm: 5.0 ppm / TWA alarm: 1.0 ppm / STEL alarm: 5.0 ppm / Over alarm: 200.0 ppm

Combustible Gases (Methane as standard):

• Sensor Slot: 2
• Detection Principle: Catalytic combustion
• Detection Range (Increments): 0 ~ 100% LEL (1% LEL)
• Accuracy Statement: ± 5% of reading or ± 2% LEL (whichever is greater)
• Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable): 1st alarm: 10% LEL / Over alarm: 100% LEL

Oxygen:

• Sensor Slot: 3
• Detection Principle: EC
• Detection Range (Increments): 0 ~ 40% Vol. (0.1%)
• Accuracy Statement: ± 0.5% of reading O2