Environmental Protection

Krohne Announces H250 M40 Variable Area Flowmeter Has Been Approved for North America Hazardous Areas

Intrinsically safe and explosion-proof installations covered with one device

KROHNE, Inc., a global technology leader in the development, manufacture and distribution of accurate, reliable and cost effective level and flow measurement products for the process industries, announces that KROHNE has received North American approval for use of the H250 M40 variable area flowmeter in hazardous areas. Since its introduction in 2011, the H250 M40 has achieved more than 30 approvals worldwide for hazardous gas and dust areas, including usFMc for the United States and Canada, ATEX, IECEx, NEPSI, INMETRO, KGS, GOST-R and PESO/CCOE.

The H250 M40 combines the major explosion protection types in one device. It can be used in any suitable application that requires intrinsically safe (IS) or non-incendive (NI) wiring strategies, as well as for dust-ignition or explosion proof installations. The worldwide approvals make the H250 M40 flowmeter the best choice for large international companies that have a stringent explosion protection strategy for all plants but also require local approvals. OEMs can also now fulfill different customers' requirements with a single device. In addition, the H250 M40 is the first variable area flowmeter with stainless steel housing and an explosion proof (Ex-d/XP) enclosure, making it ideal for the oil and gas industry

All available H250 M40 flowmeter indicator options can be supplied with specific approvals, onsite, and without interrupting the process. These purely mechanical flow indicators can easily be upgraded with 1 or 2 limit switches (NAMUR, transistor, or reed), a 4...20mA signal output with HART, a graphical LCD with totalizer and pulse output, as well as a digital, bus-powered communication interface using FOUNDATION Fieldbus or the PROFIBUS (Process Field Bus) PA standard. All approvals can be publicly accessed using the KROHNE download center.

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