RKI Instruments Sample Draw Detector/XMTR Assembly, H2, 0 - 2000 ppm, 24VDC - GD-V7D-H2

Item #:

GD-V7D-H2

Brand:

RKI Instruments

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Description

GD-V7D-H2 Sample Draw Detector/XMTR Assembly, H2, 0 - 2000 ppm, 24VDC by RKI Instruments

Features

Compact & lightweight
Easy maintenance
Quick-fit sensor replacement
Compatible sensor for diffusion sampling and sample drawing detector heads
Long life sampling pump (GD-D8V series)
Explosion proof
Wide variety of accessories

*Please note we can only ship RKI products to customers within the United States

Specifications

GD-A8 & GD-D8 Specifications:

Model	GD-A8	GD-A8-18	GD-D8	GD-D8DC	GD-D8-AS
Gas sample method	Static diffusion		Magnetic-driven pump suction		Air aspiration
Gases to be detected	Hydrogen, general, combustible gases	Acethylene	General combustible gas
Detectable range¹⁾	0 ~ 100% LEL (LFL) or 0 ~ 50% LEL (LFL)
Response time²⁾	Within 20 sec.		Within 20 sec. with 1 m length of piping
Structure	Explosion proof
Approval No.	43642	43644	38169	C10395	38169
Kind of explosion class & ignition group of objective gases	d3aG4³⁾	d3a.cG4³⁾	d2G4³⁾
Operating conditions	-10°C ~ + 40°C, below 95% R.H.
Applicable cable and cable leading method	4-core cable permitted for explosion proof construction		6-crore cable permitted for explosion proof construction		Same as for GD-A8
	Pressure-proof packing method. Acceptable outer diameter of cable: 10.5 ~ 13Ø		Pressure-proof packing method or pressure-proof steel conduit method. Acceptable outer diameter of cable: 13 ~15 Ø
Utility required	–		For pump: GD-D8 AC100V, 4VA; GD-D8DC DC24V, 5W		Instrumentation air: 1 ~ 7.5kgf/cm²G Air consumption: 0.18Nm³/hr
Weight & Painting color	Approx. 0.9kg. Munsel N5		Approx. 3.5kg. Munsel N5
Others	Material of packing gland for GD-A8-18 is stainless steel (GD-A8 is bronze casting)		In case of corrosive gas detection, inner tubings are teflon-coated and piping union is of stainless steel make. Sampe flowrate: 0.8l/min and above
Applicable piping for outer connections	–		Outer diameter: 8 Ø Inner diameter: 6 Ø; Copper or stainless

List of Combustible Gases & Vapours

Name of gas	Chemical formula	Explosive range	Molecular weight (Air = 1)
Acethylene	C2H2	1.5 ~ 100	0.90
Acetone	(CH3)CO	2.15 ~ 13	2.00
Benzene	C6H6	1.2 ~ 8.0	2.70
Butadiene	C4H6	1.1 ~ 12.5	1.87
Butane	C4H10	1.5 ~ 8.5	2.05
Butanol	C4H9OH	1.4 ~ 11.3	2.55
Buthyl acetate	CH3CO2C4H9	1.4 ~ 8.0	4.01
Buthylene	C4H8	2.0 ~ 9.6	1.93
Cychloexane	C6H12	1.3 ~ 8.3	2.90
Ethane	C2H6	3.0 ~ 15.5	1.04
Ehanol	C2H5OH	3.3 ~ 19	1.59
Ethyl acetate	CH3CO2C2H5	2.1 ~ 11.5	3.04
Ethylene	C2H4	2.7 ~ 34	0.97
Ethylene oxide	C2H4O	3.0 ~ 100	1.52
Ethyl ether	(C2H5)2O	1.7 ~ 36	2.55
Gasoline		1.4 ~ 7.6	3 ~ 4
Hexane	C6H14	1.2 ~ 7.4	2.79
Hydrogen	H2	4.0 ~ 75.6	0.07
i-butane	i-C4H10	1.8 ~ 8.5	2.01
Methane	CH4	5.0 ~ 15.0	0.55
Methanol	CH3OH	5.5 ~ 44	1.11
Methyl acetate	CH3CO2CH3	3.1 ~ 16	2.56
Methyl ethyl ketone	CH2C2H5CO	1.8 ~ 11.5	2.48
o-xylene	C6H4(CH3)2	1.0 ~ 7.6	3.66
Pentane	C5H12	1.5 ~ 7.8	2.50
Propane	C3H8	2.0 ~ 9.5	1.56
Propylene	C3H6	2.0 ~ 11.7	1.49
Stylene	C6H5CHCH2	1.1 ~ 8.0	3.59
Toluene	C6H5CH3	1.2 ~ 7.0	3.18
Vinyl chloride	CH2CHCI	3.8 ~ 29.3	2.16