RKI Instruments GX-3R Four Gas Monitor

Order #: 72-R

Mfg #: 72-R

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(800) 633-0561
$595.00

RKI Instruments GX-3R Four Gas Monitor

Order #: 72-R

Mfg #: 72-R

$595.00

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.

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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.

Product Highlights

  • 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

Applications

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

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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