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.

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Quick Overview

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, & bar hole Leak check mode: PPM leak detector, detects down to 100 ppm CH4 Adjustable display ranges: 500/1000/2000/5000 ppm Visual / audible pulses change with gas concentration CO display in leak check mode, ideal for residential investigations Barhole test mode for underground leak checks Status indicators: Pump active, microprocessor status and battery level Internal sample drawing pump with up to 50 foot range Vibration, visual, and audible alarms Automatic backlight during alarms Bump test and calibration reminder with lock out option Lithium ion or alkaline battery packs (interchangeable) Alarm latching or non-latching High impact, dust and water resistant design Up to 600 hours of datalogging with alarm trends Snap-logging - on demand data recording TWA and STEL readings with lunch-break mode Intrinsically safe, ATEX/IECEx/CE or CSA/CE (Optional) 2 year warranty

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Details

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

Additional Information

Manufacturer: RKI Instruments

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GX-2012 Product Datatsheet	GX-2012 Spanish Datatsheet	SDM-2012 Datatsheet
GX-2012 Operator's Manual	GX-2012 CSA Operator's Manual	GX-2012 Datalogger Management Program Operator's Manual
GX-2012 Quick Check Cylinder Supplement	Quick Reference Card	Spanish Quick Reference Card
GX-2012 Spare Parts non CSA	GX-2012 Spare Parts CSA version

	Part #	Description
1.	17-1001RK	Tapered rubber inlet nozzle, 4”, RP-6 / GX-2003 / GX-2012 / Gas Tracer
2.	21-1833RK	Filter holder, clear plastic, GX-2003
3.	33-1031RK	Cotton balls, filters for probe, bag of 25
4.	33-0159RK	Teflon filter disc, 10 pieces, RP-6 / GX-2003
5.	33-1112RK	Wire mesh disk filter, RP-6 / GX-2003 / GX-2012, 10 pack
6.	21-1890RK	Top cover assembly, GX-2012 / Gas Tracer
7.	30-0022RK	Pump replacement for GX-2012 and RP-2009, with cable and connector
8.	21-1889RK	Main case assembly, GX-2012
9.	07-6024RK	Battery pack gasket, GX-2012 / Gas Tracer
10.	07-6025RK	Main case gasket, GX-2012 / Gas Tracer
11.	51-1125RK	LCD display, GX-2012 / Gas Tracer
12.	57-2043RK	CPU PC board assembly, GX-2012
13.	49-1406RK	Battery, lithium, CR 1220, for main PCB, GX-2012 / Gas Tracer
14.	30-1053RK	Vibration motor, GX-2003 / GX-2012 / Gas Tracer
15.	10-1090RK	Tap tight screw M2x4.5 mm, phillips self-tapping
16.	57-2041RK	Sensor PC board assembly, GX-2012
17.	07-6026RK	Sensor gasket, GX-2012 / Gas Tracer
18.	33-7114RK	Filter disk, H2S scrubber, 5 pack, for combustible diffusion port
19.	33-7102RK	Filter, charcoal, for CO sensor, pack of 5 GX-2009 / GX-2012 / Gas Tracer / GX-2001
20.	21-1892RK	Sensor cap assembly, GX-2012
21.	13-0118RK	Belt clip, GX-2012 / Gas Tracer
22.	49-1615RK	Batter pack, lithium ion, GX-2012 / Gas Tracer
23.	49-1616RK-01	Alkaline Battery pack cover with gasket, GX-2012 / Gas Tracer
24.	49-1616RK-02	Alkaline Battery pack without cover with gasket, GX-2012 / Gas Tracer
25.	13-0112RK	Wrist strap
26.	10-1108RK	Screw M2 x 16
27.	10-1093RK	Screw M2 x 6 SUS304
28.	10-1091RK	Screw M2 x 5 SUS
29.	10-1092RK	Truss screw M2 x 5
30.	OS-BM2	O2 sensor OS-BM2
31.	NC-6264A NC-6264B (CSA version)	LEL sensor (non CSA) LEL sensor for GX-2012 CSA
32.	ES-1821	CO sensor ES-1821
33.	ES-1827I	H2S sensor ES-1827I
34.	TE-7561	VOL sensor TE-7561
35.	SH-8641	PPM sensor SH-8641, Gas Tracer
36.	49-1616RK	Alkaline Battery pack without batteries with gasket, GX-2012 / Gas Tracer