Confined Space Monitor GX-2009
The Confined Space Monitor GX-2009 is the world’s smallest as well as lightest personal 4-gas monitor. Weighing only 130 grams, it fits in the palm of your hand. The GX-2009 represents the latest evolution of gas detection technology. The GX-2009 simultaneously monitors and displays combustibles Oxygen (O2), Carbon Monoxide (CO2) as well as Hydrogen Sulphide (H2S). It is a compact 70(H) x 75(L) x 25(D)mm (approx.) design.
Advancements include dual audible alarm ports and alarm LED’s on 3 sides of the instrument. This ensures that alarm conditions are obvious from multiple perspectives especially in high noise environments. Other features include a water-resistant and dust-proof design with IP 67 rating, an impact resistant rubber over-mold body that is RFI resistant in addition to a large capacity data logging system. User benefit from these features as standard.
The GX-2009 is designed around Riken Keiki’s compact and proven sensors. These Sensors utilise catalytic combustion, electro-chemical as well as galvanic sensor technologies. These miniaturized sensors are manufactured with the same high quality control that has made Riken Keiki’s sensors as well as instruments the most reliable and long lasting monitoring devices in the industry.
An optional multi-charger is available. Operators charge multiple devices together saving considerable time. 
SDM-2009 is a single module calibration station allows users to calibrate, bump test, charge, and archive data. It works either independently or can be directly connected and controlled from a PC. Up to ten units can be connected together.
The GX-2009 is very popular with users as a confined space monitor in Petrochemical, Marine and Oil and Gas industries in addition to applications in waste water , sewage and many others.
| Gas Detected | Combustible Gases (Methane as standard) | Oxygen (O2) | Hydrogen Sulfide (H2S) | Carbon Monoxide (CO) |
| Detection Principle | Catalytic combustion | Galvanic cell | Electrochemical cell | |
| Detection Range (Increments) | 0 ~ 100% LEL (1% LEL) | 0 ~ 40.0% Vol. | 0 ~ 100.0 ppm (0.5 ppm) | 0 ~ 500 ppm (1 ppm) |
| (0.1% Vol.) | ||||
| 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) | ||||
| Sampling Method | Diffusion sampling standard / hand aspirator or motorized pump optional | |||
| Display | Digital LCD displays all four gases simultaneously, with auto backlight | |||
| Preset Alarms | 1st alarm 10% LEL | Low alarm 19.5% | 1st alarm 5 ppm | 1st alarm 25 ppm |
| (User Adjustable) | 2nd alarm 50% LEL | High alarm 23.5% | 2nd alarm 30 ppm | 2nd alarm 50 ppm |
| Overscale alarm | Over alarm 100% LEL | Over alarm 40.0% | TWA alarm 1 ppm | TWA alarm 25 ppm |
| (Non-adjustable) | STEL alarm 5 ppm | STEL alarm 200 ppm | ||
| Over alarm 100 ppm | Over alarm 500 ppm | |||
| 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 | ||||
| Display of Alarm | Gas Alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), flashing gas value, vibration | |||
| Trouble alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), display of error message | ||||
| 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; | |||
| ATEX / 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) | |||
| Case Material | High impact over molded rubber. Dust and water resistant with IP-67 approval. | |||
| Controls | Two glow in the dark buttons: POWER / MODE, AIR | |||
| Datalogging | Standard with all instruments. Stores 8 alarm trend sessions where readings are recorded 30 minutes | |||
| before and after an alarm event. 3,600 data point capacity with a log time range of 10 to 300 hours | ||||
| (based on programmable interval times); and stores up to 100 calibration records. | ||||
| Required Accessories | Battery charger | |||
| Standard Accessories | Alligator clip | |||
| NiMH batteries (set of 2) | ||||
| Charging station with 115/220 VAC power supply | ||||
| Optional Accessories | Belt Clip | |||
| Padded carrying case for GX-2009 and accessories | ||||
| Charging station, 115/220 VAC powered for 2, 3, 4, or 5 instruments | ||||
| Charging station with 12 VDC power supply and vehicle adapter plug | ||||
| 12 VDC adapter with vehicle plug (does not include charger base) | ||||
| RP-2009 pump with 4″ rubber nipple, 10′ hose and probe (up to 40′ hose available) | ||||
| Hand aspirated sample draw with 10′ hose and probe (up to 40′ hose available) | ||||
| USB to IrDA downloading cable | ||||
| SDM-2009 single calibration station | ||||
| 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, H2S | ||||
| Warranty | Two years material and workmanship | |||
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