Description
RKI is proud to offer the smallest and lightest 4-gas monitor with an MSHA rating, the GX-2009 MSHA. Weighing only 4.6 ounces, it fits in the palm of your hand.
The GX-2009 MSHA simultaneously monitors and displays % volume methane, oxygen, carbon monoxide, and nitrogen dioxide. Equipped with dual audible alarm ports and alarm LED’s on 3 sides of the instrument, so that alarm conditions are obvious from multiple perspectives especially in high noise environments. Other features include a water resistant and dustproof design with IP 67 rating, an impact resistant rubber over-mold body that is RFI resistant, and a large capacity data logging system included as standard.
Other standard features are vibration alarm, auto-calibration, calibration and bump test lock out or reminder control, STEL / TWA readings, peak hold, auto backlighting at alarm on a large LCD display, and it even tells the time! All of these controls and features are operated through 2 simple glow-in-the dark, glove friendly buttons. The NiMH battery set will operate for 20 hours and will fully charge in 3 hours.
A huge capacity data logging function is a standard feature on all GX-2009 instruments. The data logging software will store up to 100 calibration records and is Windows 10, 8, 7, XP and Vista compatible. To simplify maintenance and record keeping, the GX-2009 MSHA has the SDM-2009 single calibration station available. The SDM-2009 calibration station can operate as a stand-alone system or connect to a computer along with up to 10 other SDM-2009 units.
MSHA (Mine Safety and Health Administration) certification allows the GX-2009 to be used in underground mines, tunnels and excavations under MSHA jurisdiction.
MSHA Datasheet for more information GX2009, GX 2009
Applications
- Mining
- Underground construction
- Tunneling
- Any application where an MSHA approved gas
monitor is required
Secifications
| Gas Detected | Combustible Gases (Methane as standard) | Oxygen (O2) | Nitrogen Dioxide (NO2) | Carbon Monoxide (CO) | Hydrogen Sulfide (H2S) |
| Sensor | Catalytic combustion | Galvanic cell | Electrochemical cell | ||
| NC-6264B | OS-BM2 | ES-1826-NO2 | ES-1821 | ES-1827i | |
| Detection Range (Increments) | 0 ~ 5% vol (0.05% vol) |
0 ~ 40.0% vol (0.1% vol) |
0 ~ 20 ppm (0.1 ppm) | 0 ~ 500 ppm (1 ppm) | 0 ~ 100.0 ppm (0.5 ppm) |
| Accuracy Statement | ± 5% of reading or ± 0.1% vol (whichever is greater) |
± 0.5% O2 | ± 5% of reading or ± .5 ppm NO2 (whichever is greater) |
± 5% of reading or ± 5 ppm CO (whichever is greater) |
± 5% of reading or ± 2 ppm H2S (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 (User Adjustable) Overscale alarm (Non-adjustable) |
1st alarm 0.5% vol 2nd alarm 2.5% vol Over alarm 5% vol |
Low alarm 19.5% High alarm 23.5% Over alarm 40.0% |
1st alarm 1 ppm 2nd alarm 3 ppm TWA alarm 1 ppm STEL alarm 5 ppm Over alarm 20 ppm |
1st alarm 25 ppm 2nd alarm 50 ppm TWA alarm 25 ppm STEL alarm 200 ppm Over alarm 500 ppm |
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| 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 |
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| 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 |
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| 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 | MSHA classified | ||||
| Size & 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. |
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| Required Accessories | Battery charger | ||||
| Standard Accessories | Alligator clip 13-0116RK NiMH batteries (set of 2) 49-1609RK Charging station with 115/220 VAC power supply (also available without power supply, 49-2170RK) 49-2170RK-01 Product CD (includes datalogging software) 71-8002RK |
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| Optional Accessories | Belt Clip 13-0117RK Padded carrying case for GX-2009 and accessories 20-0112RK-01 Charging station, 115/220 VAC powered for 2, 3, 4, or 5 instruments 49-2170RK-XX Charging station with 12 VDC power supply and vehicle adapter plug 49-2171RK 12 VDC adapter with vehicle plug (does not include charger base) 49-2020RK Hand aspirated sample draw with 10’ hose and probe (up to 40’ hose available) 81-1160RK USB to IrDA downloading cable 47-5027RK SDM-2009 single calibration station 81-SDM2009-01 |
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| Configurations | • 4 gas, CH4 / O2 / NO2 / CO • 3 gas, CH4 / O2 / NO2 • 2 gas, CH4 / O2 • 1 gas, CH4 • 4 gas, CH4 / O2 / H2S / CO • 3 gas, CH4 / O2 / CO |
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| Warranty | Two years material and workmanship | ||||
GX-2009 LEL/Oxy/CO/H2S MSHA Operator’s Manual
