Explosion Proof - Intrinsically Safe Scales

Explosion Proof Scales
Model	BenchMark SL 882IS	BenchMark 882IS	Roughdeck SS 882IS	RL1200 IS
Price From	$2,475.80	$2,726.10	$4,540.40	$3,422.65
Capacity x Readability	2 x 0.0004 lb 5 x 0.001 lb 10 x 0.002 lb 20 x 0.004 lb 30 x 0.006 lb 50 x 0.01 lb 100 x 0.02 lb	50 x 0.01 lb 100 x 0.02 lb 150 x 0.03 lb 200 x 0.04 lb 250 x 0.05 lb 300 x 0.06 lb 500 x 0.1 lb 1000 x 0.2 lb	1000 x 0.2 lb 2000 x 0.4 lb 5000 x 1 lb 10000 x 2 lb	1000 lb x 0.5 lb 500 kg x 0.2kg
Size	10 x 10 in 12 x 12 in	12 x 18 in 18 x 18 in 18 x 24 in 24 x 24 in	2.5 x 2.5 ft 3 x 3 ft 4 x 4 ft 4 x 5 ft 5 x 5 ft 5 x 7 ft	24 in x 18 in
Type	Bench Scales	Bench Scales	Floor Scales	Portable Beam Scale
Legal for Trade	YES	YES	YES	YES
APPROVALS	FM	FM	FM	FM
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Model	EK-EP Explosion Proof	EK-AEP Explosion Proof	EK-EP Explosion Proof
Price from	$1,295.00	$975.20	$1,512.00
Capacity x Resolution	300 x 0.01 g 12 kg x 1 g	300g x 0.01g 3000 g x 0.1 g 12 kg x 1 g	20 x 0.002 lb 150 x 0.01 lb 200 x 0.02 lb 500 x 0.05 lb
Pan Size	dia 110 mm 133 x 170 mm	dia 110 mm 133 x 170 mm	9.8 x 9.5 in 13.0 x 16.7 in 15.4 x 20.9 in 15.4 x 20.9 in
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Model	MSI	Rice Lake
	MSI-4260-IS	RL1200 IS
Price From	$6,234.80	$3,422.65
Capacity x Readability	500 x 0.2 lb 2000 x 1.0 lb 5000 x 1.0 lb 10,000 x 2.0 lb 20,000 x 5.0 lb 30,000 x 10 lb 50,000 x 10 lb 70,000 x 20 lb 100,000 x 20 lb	1000 lb x 0.5 lb 500 kg x 0.2kg
Pan Size	-	8 x 8 Inch 10 x 10 Inch 12 x 12 Inch 15 x 15 Inch
Type	Intrinsically Safe Crane Scales	Intrinsically Safe Industrial Scales
Legal for Trade	YES	YES
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Series	Minebea Intec
	Signum Ex	Combics IS-X	Combics Floor	Combics Flat Bed
Price From	$4,347.90	$6,013.55	$10,001.35	$17,703.65
Capacity x Readability	1.3 x 0.000002 lb 6.8 x 0.00002 lb 13.5 x 0.00002 lb 75 x 0.0002 lb 6.8 x 0.00002 lb 13.5 x 0.00002 lb 75 x 0.0002 lb	6.8 x 0.00002 lb 13.5 x 0.00002 lb 35 x 0.0002 lb 75 x 0.0002 lb 141 x 0.002 lb 141 x 0.0002 lb 330 x 0.002 lb 660 x 0.005 lb	15 x 0.0005 lb 30 x 0.001 lb 60 x 0.002 lb 150 x 0.005 lb 200 x 0.01 lb 300 x 0.01 lb 600 x 0.02 lb 1500 x 0.05 lb 3000 x 0.1 lb 6000 x 0.2 lb	330 x 0.01 lb 660 x 0.02 lb 1320 x 0.05 lb 2200 x 0.1 lb 3300 x 0.1 lb 6600 x 0.2 lb
	0.62 kg x 0.001 g 3.1 kg x 0.01 g 6.1 kg x 0.01 35 kg x 0.1 g	3.1 kg x 0.01 g 6.1 kg x 0.01 g 16 kg x 0.1 g 34 kg x 0.1 g 64 kg x 1 g 34 kg x 0.1 g 150 kg x 1 g 300 kg x 2 g	6 x 0.0002 kg 15 x 0.0005 kg 30 x 0.001 kg 60 x 0.002 kg 100 x 0.005 kg 150 x 0.005 kg 300 x 0.01 kg 600 x 0.02 kg 1500 x 0.05 kg 3000 x 0.1 kg	150 x 0.005 kg 300 x 0.01 kg 600 x 0.05 kg 1000 x 0.05 kg 1500 x 0.05 kg 3000 x 0.1 kg
Pan Size	5 inch dia 7.1" x 7.1" 13.7" X 9.7"	7.1 x 7.1 in 15.8 x 11.8 in 32 x 24 in	10 x 10 in 12 x 12 in 18 x 18 in 24 x 24 in 30 x 30 in 36 x 36 in 48 x 48 in	23.6 x 23.6 in 31.5 x 23.6 in 31.5 x 31.5 in 39.4 x 23.6 in 39.4 x 31.5 in 39.4 x 39.4 in 49.2 x 39.4 in 49.2 x 49.2.4 in 59.1 x 49.2 in 59.1 x 59.1 in 78.7 x 59.1 in
Legal for Trade	-	-	-	-
Type	Intrinsically Safe Industrial Scales	Intrinsically Safe Industrial Scales	Intrinsically Safe Floor Scales	Intrinsically Safe Flat Bed Scales
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Series	Sartorius
	PMA Evolution	PMA HD	PMA Power	PMA 7501-X
Price From	$2,838.60	$3,610.50	$7,503.20	$1,895.00
Capacity x Readability	1000 x 0.05 g 7500 x 0.1 g	2200 x 0.01 g	35000 x 0.1 g	7500 g x 0.1 g
Pan Size	233 mm dia	180 mm dia	350 x 240 mm	9" dia
Ex approval/zone	Ex Zone 1	Ex Zone 1	Ex Zone 1	Ex Zone 1
Type	Intrinsically Safe Paint Mixing Scales	Intrinsically Safe Paint Mixing Scales	Intrinsically Safe Paint Mixing Scales	Intrinsically Safe Paint Mixing Scales
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Explosion Proof Floor Scales

Series	Minebea Combics 2	Minebea Combics Ex	Rice Lake RL1200-IS	Rice Lake Roughdeck-IS
Price From	$6,013.55	$17,703.65	$3,422.65	$4,540.40
Capacity x Readability	15 x 0.0005 lb 30 x 0.001 lb 60 x 0.002 lb 150 x 0.005 lb 200 x 0.01 lb 300 x 0.01 lb 600 x 0.02 lb 1500 x 0.05 lb 3000 x 0.1 lb 6000 x 0.2 lb	330 x 0.01 lb 660 x 0.02 lb 1320 x 0.05 lb 2200 x 0.1 lb 3300 x 0.1 lb 6600 x 0.2 lb	1000 x 0.5 lb	1000 x 0.2 lb 2000 x 0.4 lb 5000 x 1 lb 10000 x 2 lb
Pan Size	10 x 10 in 12 x 12 in 18 x 18 in 24 x 24 in 30 x 30 in 36 x 36 in 48 x 48 in	23.6 x 23.6 in 31.5 x 23.6 in 31.5 x 31.5 in 39.4 x 23.6 in 39.4 x 31.5 in 39.4 x 39.4 in 49.2 x 39.4 in 49.2 x 49.2.4 in 59.1 x 49.2 in 59.1 x 59.1 in 78.7 x 59.1 in	24 x 18 in	2.5 x 2.5 ft 3 x 3 ft 4 x 4 ft 4 x 5 ft
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What is meant by "Intrinsically Safe"?

Through the use of special components, materials, ratings and component layouts, all electric circuits and inter-connected cables are designed so that

a) no spark or
b) thermal effect is capable of causing ignition under fault conditions.

Intrinsically safe equipment can be isolated by Zener barriers from non-intrinsically-safe circuits for data transfer to the safe area

Basic principles of intrinsic safety:

• Voltage limitation
• Current limitation
• Limitation of storable energy

Advantages of intrinsically safe protection

• Equipment can be calibrated and maintained without removing power
• General purpose wiring methods can be used for connection to power
• No safety permits are required since the area does not need to be “shut down" for servicing

Classification of Hazardous Locations in the United States

Class

• Class I - locations in which hazardous concentrations of flammable gases or vapors exist
• Class II - locations which are hazardous due to the presence of combustible or electrically conductive dust of fibers

Division

• Division 1 - present continuously, intermittently or periodically during normal operating conditions
• Division 2 - not present under normal operating conditions, but as a result of equipment failure, breakdown of containers or abnormal operation of ventilating equipment

Groups

• Group A - atmospheres containing acetylene
• Group B - atmospheres containing hydrogen, gases or vapors of equivalent hazard such as natural gas
• Group C - atmospheres containing ethyl ether vapors, ethylene or cyclopropane
• Group D - atmospheres containing gasoline,hexane, naptha, benzine, butane, propane, alcohol, acetone, benzol, lacquer solvent vapors or other natural gases