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With the GX-2012, you have multiple tools in one instrument. Having 3 operating modes, the GX-2012 can be used for confined space, safety monitoring in it’s Normal Operating mode; for leak investigation in Leak Check mode; and for underground leak checking in Bar Hole mode.
When equipped with an optional TC sensor, the GX-2012 can measure 100% volume methane and dynamically auto range from % LEL to % volume. This is ideal for line purge testing. Built around high-quality micro-sensor technology, the GX-2012 is RKI’s smallest personal 1-5 sensor gas monitor with a built in sample pump.
Weighing only 12.3 ounces, the GX-2012 can monitor the standard confined space gases (LEL combustibles, Oxygen content, Carbon Monoxide, and Hydrogen Sulfide).
The GX-2012’s large LCD display shows all gas readings, battery level, current time, and will automatically backlight in alarm conditions. Standard alarm types include vibration, visual, and audible alarms, which can be set to latching or non-latching.
Controlled by a microprocessor, the GX-2012 continuously checks itself for sensor connections, low battery, circuit trouble, low flow, and calibration errors.
The GX-2012 can interchangeably operate on either a Li-ion battery pack or an alkaline battery pack. The batteries are simple to replace requiring no tools to access the removable battery compartment or pack.
| Gas Detected | Combustible Gases
(Methane as standard) | % Volume
Methane | Oxygen (O2) | Hydrogen Sulfide (H2S) | Carbon Monoxide (CO) | | Detection Principle | Catalytic combustion | Thermal conductivity | Galvanic cell | Electrochemical cell | | Detection Range | 0 ~ 100% LEL
0 ~ 500 / 1,000 / 2,000 / 5,000 ppm | 0 ~ 100% Vol. | 0 ~ 40% Vol. | 0 ~ 100 ppm | 0 ~ 500 ppm | Accuracy Statement
(whichever is greater) | ± 5% of reading or
± 2% LEL (LEL mode only) | ± 5% of reading or ± 2% of full scale | ± 0.5% O2 | ± 5% of reading or ± 2 ppm H2S | ± 5% of reading or ± 5 ppm CO | | Sampling Method | Internal sample pump, flow rate nominal 0.5 LPM, includes hydrophobic filter | | Display | Digital LCD with 7 segments, auto backlight during alarm | Preset Alarms
(User Adjustable) | 1st alarm 10% LEL
2nd alarm 50% LEL
Over alarm 100% LEL | No alarms for
% Vol. CH4 | Low alarm 19.5% High alarm 23.5% Over alarm 40.0% | 1st 5 ppm
2nd 30 ppm
TWA 10 ppm
STEL 15 ppm
Over 100 ppm | 1st 25 ppm
2nd 50 ppm
TWA 25 ppm
STEL 200 ppm
Over 500 ppm | | Alarms Types | Gas alarms: 1st and 2nd, STEL, TWA (user adjustable) and OVER
Trouble alarms: Sensor connection, low battery, low flow, circuit trouble and calibration error | | Alarm Methods | Gas alarms: Flashing lights, two tone buzzer, and vibration
Trouble alarms: Flashing lights, trouble displayed, intermittent buzzer, and vibration | | Operating Temp. & Humidity | -20°C to +50°C (-4°F to 122°F)
0 to 95% RH, non-condensing | | Response Time | Within 30 seconds (T90) | | Continuous Operation | Alkaline battery: 15 hours Li-Ion battery: 10 hours
70°F (21°C) | | Power Source | Li-Ion battery pack, or 3 “AA” Alkaline battery pack; interchangeable | | Safety Rating | ATEX, TIIS, IECEx, and CE or optionally: CSA classified as intrinsically safe. Class I, Division 1, Groups A, B, C, D, and CE
Note: Either ATEX (USA and worldwide) or CSA (Canada) version must be specified when ordering. | | Dimension & Weight | Approx. 143 (H) x 71 (W) x 43 (D) mm (5.6” H x 2.8” W x 1.6” D), approx. 350 g (12.3 ounces) | | Case Material | High dust & water resistant design. RFI shielded high impact plastic with protective rubber overmolding | | Controls | Five buttons: POWER / ENTER, DISPLAY, AIR, RESET, SHIFT | | Standard Accessories | • Belt clip • Rubber nozzle, 3.5” • Datalogging software
• 10” Probe • Manual • Quick reference card
• 10’ Hose • Training CD | | Optional Accessories | • SDM-2012 calibration stations • Calibration kit
• Li-Ion battery pack • AC or DC Charger
• Sample draw hoses (10’ standard, • Carrying case
up to 50’ max. available) | | Configurations | 1, 2, 3, 4, or 5 sensor units
Li-Ion or alkaline battery pack options | | Warranty | Two years material and workmanship |
Application
- Personal monitoring
- Confined space entry
- Refineries / petrochemical
- Chemical plants
- Hazardous material
- Water / wastewater treatment
- Fire services
- Mining
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Features
- Monitors ppm LEL, % volume methane, O2, CO and H2S
0 to 100% volume methane option
- Auto-ranging display of % LEL and % volume
- 3 Operating Modes: Normal, Leak Check, and Bar Hole
- ppm leak detector
- Adjustable display ranges
- Visual/audible pulses change with gas concentration
- CO display in Leak Check mode
- Bar Hole test mode for underground leak checks
- Internal sample drawing pump with up to 50'
- Vibration, visual and audible alarms
- Automatic backlight during alarms
- Lithium ion or alkaline battery packs (interchangeable)
- Intrinsically safe, ATEX/IECEx/CE or CSA/CE (optional)
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