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    GX-3R Four Gas Monitor

    GX-3R Four Gas Monitor

    Features

    • Smallest & lightest 4 gas monitor
      • 2.2″ W x 2.55″ H x 1.02″ D, 3.52 ounces
    • Simultaneous detection of 4 gases
      • LEL, O2, H2S & CO
      • H2 Compensated CO sensor available
    • 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
    Contact RKI Sales

    Description

    GX-3R Four Gas Monitor callouts

    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.

    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.

    Gas Detected

    (CO)
    H2 Compensated

    Carbon Monoxide(CO) Hydrogen Sulfide(H2S) H2S
    Only

    Combustible Gases
    (Methane as standard)

    Dual Sensor

    Sensor Slot

    1

    2

    Detection
    Principle

    EC Dual EC EC

    Catalytic combustion

    Detection Range
    (Increments)

    0 ~ 2,000 ppm
    (1 ppm)

    0 ~ 200.0 ppm
    (0.1 ppm)

    0 ~ 100% LEL
    (1% LEL)

    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)

    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 (Pending)
    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
    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

    Features

    • Smallest & lightest 4 gas monitor
      • 2.2″ W x 2.55″ H x 1.02″ D, 3.52 ounces
    • Simultaneous detection of 4 gases
      • LEL, O2, H2S & CO
      • H2 Compensated CO sensor available
    • 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

    Application

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

    Specifications

    Gas Detected

    (CO)
    H2 Compensated

    Carbon Monoxide(CO) Hydrogen Sulfide(H2S) H2S
    Only

    Combustible Gases
    (Methane as standard)

    Dual Sensor

    Sensor Slot

    1

    2

    Detection
    Principle

    EC Dual EC EC

    Catalytic combustion

    Detection Range
    (Increments)

    0 ~ 2,000 ppm
    (1 ppm)

    0 ~ 200.0 ppm
    (0.1 ppm)

    0 ~ 100% LEL
    (1% LEL)

    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)

    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 (Pending)
    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
    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

    Video


    This video is also available on YouTube and CD (by request)

    Downloads

    GX-3R Software

    download
    Datalogging Software for GX-3R (06036)

    Literature & Manuals

    GX-3R datasheet
    GX-3R Product Datatsheet
    GX-3R datasheet
    GX-3R Manual
    GX-3R datalogging manual
    GX-3R Datalogging Manual