Riken Keiki GX-6000 Portable Multi Gas Monitor

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Riken Keiki GX-6000 Portable Multi Gas Monitor

  • Up to 6 gases can be detected and displayed simultaneously.
  • VOC can be detected by adoption of the PID sensor.
  • Multi languages can be displayed (English and others).
  • Measurement in a dark place is safely done with the LED light.
  • Equipped with panic alarm & man down alarm function.
  • Detect benzene selectively (Benzene select mode).

Product Description

Riken Keiki GX-6000 Portable Multi Gas Monitor

The GX-6000 is a game changer. This powerful hand-held instrument is capable of simultaneously monitoring up to 6 gases. In addition to the standard 4 confined space gases which include combustibles, O2, CO, & H2S, the GX-6000 has 2 additional smart channels that accept PID, IR or super toxic sensors. Equipped with a strong internal sample pump, a man-down alarm, a panic alarm, an LED flashlight, and large auto rotating LCD display, the GX-6000 can operate as a single gas PID unit or a multifunctional tool utilizing all 6 channels. The GX-6000 with a PID sensor will come equipped with a library of over 600 VOC gases to choose from as standard. Choosing from the library is easy with a personalized favorites list of 30 commonly used VOC’s as well as a list of 8 of the most recently used VOC’s. A benzene-specific version is available using a pre-filter tube for detecting low levels of benzene. Four PID sensors are available, 10.0 eV, 10.6 eV (low or high range), and 11.7 eV. Any combination of two PID sensors can be installed. GX-6000 PID sensors are also resistant to humidity.

The GX-6000 has a rugged design built for the nastiest environments. It is equipped with a removable impact-resistant rubber boot and a dust and water resistant enclosure with an IP-67 rating. With 5 bright LED lights on 3 sides of the instrument, alarms are easily seen from a variety of perspectives. With vibration and loud audible alarm, GX-6000 will easily alert users when needed.

Sensors available: CL2, CO, CO2, HCN, H2S, NH3, NO2, PH3, SO2, and VOC (volatile organic compounds) Ammonia, Chlorine, Hydrogen Cyanide, Nitrogen Dioxide, Phosphine, Sulfur Dioxide, Carbon Dioxide, Methane, Hydrocarbon, Hydrogen Sulfide, Carbon Monoxide, and Oxygen Monitor.

6 Operating Modes

  • Normal Mode
  • Barhole Mode
  • Inert Mode
  • Leak Check
  • Snap Log Mode
  • Benzene Specific


  • Confined Space Entry
  • Hazmat Response Teams
  • Arson Investigation
  • Remediation Site
  • Perimeter Monitoring
  • Leak Detection
  • Landfill Monitoring
  • Winery Tank Entry

Features Riken Keiki GX-6000 Portable Multi Gas Monitor

  • 5 Operating modes
  • Smallest 6 gas sample draw
  • 2 Interchangeable smart sensor slots
  • 4 PID options: 10.6 (2 ranges) eV, 10.0 eV, and 11.7 eV lamps
  • PID library of over 600 VOCs — Easily switch target VOC from customizable user list or a recently used list
  • Benzene specific version
  • PPM Leak Check mode
  • LEL sensor protection mode
  • Man-down alarm
  • Panic alarm • Auto display rotation
  • Peak-bar display
  • LED Light source
  • Internal sample pump
  • Light weight, small, rugged IP-67
  • Interchangeable battery packs
  • Operates up to 14 hours
  • Field replaceable sensors, batteries, filters and pump
  • Intrinsically safe ATEX / IECEx / cCSAus

Specifications Riken Keiki GX-6000 Portable Multi Gas Monitor

Gases & Detectable Ranges
GasMeasuring RangeReading IncrementAlarm Set PointsAccuracy (which ever is greater)
PID Sensors
10.6 Lamp600 VOC’s0 – 50,000 ppb1 ppb: (< 5000 ppb) 10 ppb: (> 5,000 ppb)A1: 5,000 ppb± 10% of reading, ± 1 digit
A2: 10,000 ppb
0 – 6,000 ppm0.1 ppm: (< 600 ppm) 1 ppm: (> 600 ppm)A1: 400 ppm
A2: 1,000 ppm
10.0 LampBenzene Specific0.1 – 50 ppm0.01 ppm (0 ~ 10 ppm) 0.1 ppm (10 ~ 50 ppm)No Alarms
300 VOC’s0 – 100 ppm0.01 ppm (0 ~ 10 ppm) 0.1 ppm (10 ~ 100 ppm)A1: 5 ppm A2: 10 ppm
11.7 LampHigh Voltage Lamp0 – 1000 ppm0.1 ppmA1: 400 ppm
A2: 1,000 ppm
Oxygen (O2)0 – 40.0% Vol.0.1% Vol.A1: 19.5 Vol.± 0.5% O2
A2: 23.5 Vol.
Electro Chemical
Carbon Monoxide (CO)0 – 500 ppm1 ppmA1: 25 ppm± 5% of reading or ± 5 ppm
A2: 50 ppm
TWA 25 ppm
STEL 200 ppm
Hydrogen Sulfide (H2S)0 – 100.0 ppm0.5 ppmA1: 5.0 ppm± 5% of reading or ± 2 ppm
A2: 30.0 ppm
TWA 1.0 ppm
STEL 5.0 ppm
Toxics (EC Sensors)
Ammonia (NH3)0 – 400.0 ppm0.5 ppmA1: 25 ppm± 10% of reading or ± 5% of full scale
A2: 50 ppm
Chlorine (Cl2)0 – 10.00 ppm0.05 ppmA1: 0.5 ppm
A2: 1.0 ppm
Hydrogen Cyanide (HCN)0 – 15.0 ppm0.1 ppmA1: 5 ppm
A2: 10 ppm
Nitrogen Dioxide (NO2)0 – 20.00 ppm0.05 ppmA1: 3 ppm
A2: 6 ppm
Sulfur Dioxide (SO2)0 – 99.90 ppmA1: 2 ppm
A2: 5 ppm
IR Sensors
Carbon Dioxide (CO2)0 – 10,000 ppm20 ppmA1: 5,000 ppm± 5% of reading or ± 2% of full scale
TWA 5,000 ppm
0 – 10.00% Vol.0.02%A1: 0.50% Vol
A2: 3.00% Vol
STEL 3.00% Vol
TWA 0.50% Vol
Methane (CH4)0 – 100% LEL 0 – 100% Vol.1% LEL/ 0.5% VolA1: 10% LEL A2: 50% LEL
Hydrocarbons0 – 100% LEL 0 – 30% Vol.
Hydrocarbons (CH4, std)0 – 100% LEL1% LELA1: 10%LEL± 5% of reading or ± 2% LEL
A2: 50%LEL
Common Specifications
Alarm TypesGas alarmMan-downTrouble
Low and high adjustable1st – self reset 2nd – latchingLow flow Sensor connection Low battery Circuit error Calibration range
Sample MethodSample draw pump, flow rate 0.45 LPM, 50 foot sample range
DisplayDigital LCD, autobacklight, peak bar display, auto display rotation, and customize order of gases
Audible Alarm95 dB at 1 ft.
LanguagesEnglish, Spanish, French, German, Italian, Japanese, Korean, Portuguese, Russian
Continuous Operation14 hours on Lithium-ion battery pack. Complete recharge in 3 hours. 8 hours Alkaline battery pack (3 AA size within each pack)
Operating Temp. & Humidity-4°F to 122°F (-20°C ~ +50℃), 0- 95% RH non condensing
Dimensions2.6” W x 7.8” H x 2” D (H200 x W68 x D52 mm) 14 ounce (400g) (with lithium battery pack)
Case MaterialDust and water resistant with IP-67 approval (exclude sample hose and probe)
Safety Design / ApprovalsExplosion proof: IECEx , ATEX , TIIS , cCSAus Explosion class :Ex ia IIC T4 Ga Others: CE Marking
  Standard Features2 Smart sensors slots auto recognize sensor changes Library of over 600 VOC’s User defined VOC list. Up to 30 frequently used Recent VOC list for last 8 selected gases Pump and circuit status indicators User & station ID selection menu Datalogging (interval, alarm trend, station and user ID) Snap logging – on demand data logging Demand zero / Auto zero BUMP and CAL expiration alarm Flashlight IrDA communication LEL sensor protection mode
Standard Accessories• Rubber boot • Belt clip • Hand strap • Tapper nozzle• Probe with hydrophobic & dust filter 3’ teflon lined hose • Benzene pre-filter tubes and holder (benzene versions)
Optional Accessories• SDM-6000 calibration station • Bundles with instrument carrying case and accessories • Flexible probes • Up to 50 foot sample hoses • Filter set • IrDA cable


Riken Keiki GX-6000 – Datasheet

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Additional Information


Riken Keiki




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