Riken Keiki GX-2009 MultiGas Detector

RKI is proud to offer the smallest and lightest 4-gas monitor with an MSHA approval. MSHA (Mine Safety and Health Administration) approval allows this version of the GX-2009 to be used in underground mines, tunnels and excavations under MSHA jurisdiction. The GX-2009 Mining Version simultaneously monitors and displays % volume combustibles, oxygen, carbon monoxide, and hydrogen sulphide.

Application

  • Personal monitoring
  • Confined spaces
  • Refineries/petrochemical
  • Utilities
  • Hazardous material
  • Water/wastewater
  • Fire services
  • Construction

The GX-2009 is designed around RKI’s compact and proven sensors, utilizing catalytic combustion, electrochemical and galvanic sensor technologies. Each miniaturized sensor is manufactured with the same high quality control that has made RKI sensors and instruments the most reliable and long lasting monitoring devices in the industry.

Gas Detected Combustible Gases (Methane as standard) Oxygen (O2) Hydrogen Sulfide (H2S) Carbon Monoxide (CO)
Detection Principle Catalytic combustion Galvanic cell Electrochemical cell Electrochemical cell
Detection Range (Increments) 0 ~ 100% LEL (1% LEL) 0 ~ 40.0% Vol. (0.1% Vol.) 0 ~ 100.0 ppm (0.5 ppm) 0 ~ 500 ppm (1 ppm)
Accuracy Statement ± 5% of reading or ± 2% LEL (whichever is greater) ± 0.5% O2 ± 5% of reading or ± 2 ppm H2S (whichever is greater) ± 5% of reading or ± 5 ppm CO (whichever is greater)

Product Specifications

Type Parameter
Sampling Method
  • Diffusion sampling standard / hand aspirator or motorized pump optional
Display
  • Digital LCD displays all four gases simultaneously, with auto backlight
Types of Alarms
  • Gas Alarm: 2 Increasing alarms, STEL, TWA, overscale alarm. O2 decreasing/increasing. Trouble alarm: Sensor disconnection, low battery, circuit error, calibration range error
Operating Temp. & Humidity
  • -4°F to 122°F (-20°C ~ +50°C), 0 to 95% RH, non-condensing (splash resistant)
Response Time
  • Within 30 seconds (T90
Continuous Operation
  • 20 hours after a 3 hour full charge (14 hours after 90 min charge)
Power Source
  • Direct charging NiMH batteries, set of 2
Safety Design / Approvals
  • IECEx zone 0 Ex ia IIC T4; ATEX II 1G Ex ia IIC T4; (optional MSHA version also available) c CSA us classified, as intrinsically safe. Class I, Division 1, Groups A, B, C, D
Dimension & Weight
  • 2.7” H x 3” W x 1” D (Approx. 70 H x 75 W x 25 D mm), 4.6 ounces (approx. 130 g)
Required Accessories
  • Battery charger
Configurations
  • 4 gas, LEL / O2 / H2S / CO
  • 3 gas, LEL / O2 / H2S
  • 3 gas, LEL / O2 / CO
  • 2 gas, LEL / O2
  • 2 gas, O2 / H2S
  • 2 gas, O2 / CO
  • Single gas LEL, O2, CO, or H2S<br
Warranty
  • Two years material and workmanship