Multi Gas Monitor GX-2012 Riken Keiki
Specifications
Gas Detected	Combustible Gases	% Volume	Oxygen ( O₂ )	Hydrogen Sulfide (H₂S)	Carbon Monoxide (CO)
	( Methane as standard )	Methane
Detection Principle	Catalytic combustion	Thermal conductivity	Galvanic cell	Electrochemical cell
Detection Range	0 ~ 100 % LEL	0 ~ 100 % Vol.	0 ~ 40 % Vol.	0 ~ 100 ppm	0 ~ 500 ppm
	0 ~ 500 / 1,000 / 2,000 / 5,000 ppm
Accuracy Statement	± 5 % of reading or	± 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
( whichever is greater )	± 2 % LEL ( LEL mode only )
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	1st alarm 10% LEL	No alarms for	Low alarm 19.5% High alarm 23.5 % Over alarm 40.0 %	1st 5 ppm	1st 25 ppm
( User Adjustable )	2nd alarm 50 % LEL	% Vol. CH₄		2nd 30 ppm	2nd 50 ppm
	Over alarm 100 % LEL			TWA 10 ppm	TWA 25 ppm
				STEL 15 ppm	STEL 200 ppm
				Over 100 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