Macnaught Hazard Zone Overview

Macnaught MX Intrinsically Safe Flow Meters were designed, certified and approved for most fluid Hazard Zone Atmospheres. Macnaught Hazard Meters are for clean process fluids and do not measure gases of fluids with solids. Clean Process Liquids only. The MX Hazard Meter offering provides inline .5% Volumetric Accuracy with .03% Repeatability.

• In Stock Sizes ¼” thru 4” .13 GPH to 320+ GPM
• No Flow Conditioning - put the meter where you want it
• Large in-stock inventory of Hazard Meters and Displays
• Quick response to Hazard Meter inquiries

NFPA 70 NEC Location Classes, Divisions, and Groups Class I definition: Flammable gases or vapors may be present Div 1 definition: Ignitable concentrations of hazards exist under normal operation and/or where the hazard Is caused by frequent maintenance or repair work or frequent equipment failure Div 2 definition: Ignitable concentrations of hazards exist under abnormal operation conditions Group A: Acetylene Group B: Hydrogen, Butadiene, Ethylene, Oxide, Propylene Oxide, and Acrolein Group C: Ethylene, Cyclopropane, Ethyl Ether Group D: Acetone, Ammonia, Benzene, Butane, Ethanol, Gasoline, Hexane, Methane, Methanol, Naphtha, Natural Gas, Propane, and Toluene

Hazard Zone / Class FAQ

Q: Can I use a piece of equipment approved for use in a Division 1 hazardous location in a Division 2 hazardous location? A: Yes. If equipment has been approved for use in a Division 1 hazardous location, it can be used in a Division 2 hazardous location, providing it is in the same class and group. Q: Can equipment approved for a Class I hazardous location be used in a Class II hazardous location? A: No. Equipment approved for use in Class I hazardous locations cannot be used in Class II hazardous locations. Q: Are Divisions and Zones equivalent to one another? A: When comparing Divisions and Zones, Division 2 is equivalent to Zone 2, but Division 1 is equivalent to either Zone 0 or 1

Intrinsically Safe Quick Specs / Downloads

Macnaught Intrinsically Safe Flow Meters and Displays meet all major Global Ex ia CID1 approvals and certifications and supersede CID2 requirements.

FM-US and FM-CA, ATEX and IECEx approved and certified.

Important: Safety Barrier is provided by others

Entity Parameters to size Barrier: Ui = 20V, Ii = 60mA, Pi = 200mW, Ci = 150nF, Li = 150uH

Macnaught MX Ex ia Quick Specifications:

FM-US and FM-CA Certification Markings:

Class 1, Division 1 GROUP ABCD T4 resp. T5 Class 1, Zone 0, AEx/Ex ia IIC T5…T4 T5 @ -25°c ≤Tamb ≤+70°c

ATEX and IECEx:
II 1 G Ex ia IIC T4…T6 Ga

MX Hazard Manual > Download PDF

F018 Intrinsically Safe Display with 4-20mA and Pulse Output > Download PDF

Notes:
MX Intrinsically Safe Sensor Type: Magnet Inductive Proximity Sensor w Namur Connection
Operating Voltage: 8VDC-15VDC
Standard Cable Length: 2 and 15 Meters
Minimum Temp: -13F
Omni Polar NPN I.S. Sensor is available as option

Large ExD Meter and Display Inventory in Ontario Stock