H250 M40

Variable area flowmeter for liquids and gases

Modular design: from mechanical indicator to 4…20 mA/HART®7, FF, Profibus-PA and totalizer
Any installation position: vertical, horizontal or in descending pipes
Flange: DN15…150 / ½…6″; also NPT, G, hygienic connections, etc.

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The H250 M40 is the standard variable area (VA) flowmeter for the process and OEM industry. The VA meter combines mechanical flow measurement of liquids or gases with state-of-the-art communication capabilities. The device is modularly extendable. Additional electronic modules can be added or replaced at any time without process interruption. In this way, its functionality adapts to new requirements – from analogue flow measurement without auxiliary power to digital integration into a fieldbus system.

Product positioning

For liquids and gases

Measurement principle

Variable area float

Measured media

Liquids, Gases

Process pressure

max. 1000 barg/14500 psig

Process temperature

-196…+400°C/-320…+752°F

Materials Measuring tube

Austenitic stainless steel (1.4404/316L), Austenitic stainless steel (1.4435/316L), Austenitic alloy (2.4610/Alloy C4), Nickel alloy (2.4360/Alloy 400), Titanium alloy (3.7035/Ti-Grade 2), Austenitic stainless steel (1.4571/316Ti), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Nickel-chromium-molybdenum-niobium alloy (2.4856/Alloy 625), Austenitic stainless steel (1.4547/6Mo)

Gaskets

None

Process connection

Austenitic stainless steel (1.4404/316L), Austenitic stainless steel (1.4571/316Ti), Nickel alloy (2.4360/Alloy 400), Austenitic alloy (2.4610/Alloy C4), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Nickel-chromium-molybdenum-niobium alloy (2.4856/Alloy 625), Titanium alloy (3.7035/Ti-Grade 2), Austenitic stainless steel (1.4547/6Mo)

Flange connections

EN (1092-1): DN15…150

ASME (B 16.5): ½…6″

JIS (B 2220): 15…100A

Thread connections Female:

G½, G¾, G1¼, G1, G1½, G1¾, G2

½ NPT, ¾ NPT, 1 NPT, 2 NPT

Hygienic connections

Clamp (DIN 32676): DN15, DN25, DN32, DN40, DN50, DN80

Clamp (ISO 2852): 25, 40, 51, 76.1

Tri-Clamp: ½”, 1″, 2″; Threaded ferrule (DIN 11851): DN15, DN25, DN40, DN50, DN80

Threaded ferrule

(DIN 11864-1A,series C): 1″, 2″

Flange with groove

(DIN 11864-2): DN15, DN25, DN50, DN80

Threaded ferrule

(SMS 1146): 25 mm, 51 mm, 76 mm

Approvals/Standards

Certificates/Approvals Others CRN, NACE

Certificates/Approvals Ex ATEX, IECEx, NEPSI, EAC Ex, cFMus, INMETRO, KCs, PESO, JPNEx

Certificates/Approvals Hygienic FDA, EC 1935/2004, GB 4806

Certificates/Approvals Marine RINA

Certificates/Approvals Nuclear Nuclear qualification on request (e.g. acc. to ASME III, RCC-M/E, etc.)

Certificates/Approvals Safety SIL 2

Communication

Analogue outputs 4…20 mA

Discrete outputs Limit switches, Pulse

Digital outputs FOUNDATION™ Fieldbus, HART®, Profibus-PA

Features & Options

Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.

Simple, low-cost installation: able to measure and display without auxiliary power supply
Unique modularity and serviceability: Limit switches, 2-wire 4…20mA, totalizer with LCD and pulse output, fieldbus interfaces
NE 107 device and application diagnostics with CFM (Continuous Float Monitoring), e.g. for float blockade detection
Universal ex-concept: Explosion proof and intrinsically safe
Various stainless steel and alloy sensor materials
Optional stainless steel housing for corrosive atmospheres
Ingress protection IP66 and IP68 / NEMA4X and NEMA6, IP69K optional
Full scale value for liquids: 10…120,000 l/h / 5…32,000 GPH
Full scale value for gases: 0.7…2800 m3/h / 25…100,000 SCFH
Turndown ratio 10:1 (optional 100:1)
Maximum measuring error: ±1.6% (acc. to VDI/VDE 3513-2) or ±1.5% of full scale
Suitable for use in Safety Instrumented Systems with SIL 2, in redundant design (1oo2) also in SIL 3 applications (type A device)
Optional hygienic design for use in the food and pharmaceutical industry