Krohne H250 M40 Metal Variable Area Flowmeter for Machinery

Product Description

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Krohne H250 M40 metal variable area flowmeter for Machinery

Product Introduction

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.

The H250 M40 is available in various materials and in many different versions. The sturdy all-metal flowmeter can be also used in applications with high pressures (up to 1000 barg / 14500 psig), temperatures (-196…+400°C / -320…+752°F) or aggressive media. It even allows installation in horizontal or descending pipes up to DN150 / 6". A special version for use in hygienic applications is also available. The H250 M40 is intrinsically safe and explosion-proof. Certain variants of the flowmeter with limit switch or analogue output are suitable for use in Safety Instrumented Systems (SIS). Electronic device diagnostics and additional application diagnostics are available to increase application reliability, e.g. the detection of a float blockage due to impurities or pressure surges and the reporting of pulsating flow or gas compression oscillations of the float.

The H250 metal variable area flowmeters cover the entire range of requirements of the process industry. The modular device design and flexible production structure form the basis for application and customer-based device versions.

The basis of the H250M40 is its purely mechanical design.
Additional electronic modules can be added or replaced at any time without interrupting the process.
This way, the functionality of the device adapts to any changed requirements.
From analogue flow measurement without auxiliary  power up to digital integration into a fieldbus system.
Simply screw off the cover, insert the module until it clicks, screw the cover back on and that's it. It is just as easy to replace the measuring scale in the event of a change in application.

Features
 

Simple, low-cost installation: measurement and indication also without auxiliary power supply

Modular scalability: from mechanical to analogue to fieldbus

Universal Ex concept: Exi, Exec, Exd and Ext

Suitable for use in safety-related SIL2 applications

CFM application diagnostics for detection of float blocks and pulsation

Any installation position: vertical upward, horizontal, vertical downward

Robust measuring tube construction for high process temperatures and extreme operating pressures

Choice of material: stainless steel, Hastelloy®, titanium, Monel®, Inconel®, PTFE/TFM etc.

Many connection variants: flanged, screwed, clamped, weld-on ends etc.

Extended measuring span: up to 100 : 1

High application safety, even with extremely low flows

Low Flow option down to full scale 1.5l/h/ 0.4GPH liquid or 16Nl/h/ 0.6SCFH gas

Industries
 
Can be used in all industrial sectors, for example:
Chemicals
Petrochemicals
Pharmaceuticals
Machinery
Food & Beverage
Oil & Gas
Iron, Steel & Metal
Power plants
Pulp & Paper
Water & Wastewater
Marine

Applications
 
Nitrogen inerting to avoid explosive atmospheres
Measurement of additives such as catalysts, tensides, anti-foaming and anti-corrosion agents
Measurement of chlorine, sulphur and ethylene compounds
Measurement of distilled or demineralised water
Monitoring of lubricating and cooling agents for process pumps and rotating machines
Monitoring of sealing systems on compressors
Gas measurement for industrial furnaces
Hygienic applications in the food industry and in pharmaceuticals



Technical datas
 

Measurement accuracy	Max. permissible error H250 /RR /HC /F	1.5% of full scale range
		1.6% of measured value according to VDI/VDE3513-2 (qG = 50%)
	Max. permissible error H250/C (ceramic, PTFE), H250H, H250U, H250 (100 : 1), H250 Low Flow	2.0% of full scale range
		2.5% of measured value according to VDI/VDE3513-2 (qG = 50%
easurement repeatability	H250 /RR /HC /F	0.25%
	H250H, H250U, H250 (100 : 1)	0.50%
Operating conditions	Temperature
	Max. operating temperature TS	-196...+300°C/ -321...+572°F Depending on the version (refer to nameplate)
		Higher temperatures up to +400°C/+752°F are on request.
	Mechanical indicators	For detailed information on product and ambient temperatures refer to Temperatures for mechanical indicators without auxiliary power on page 11.
	Devices with electrical components	For detailed information on product and ambient temperatures refer to Temperatures for devices with electrical components on page 12.
	Pressure
	Max. operating pressure PS, max. test pressure PT	Depending on the version (refer to nameplate)
	Min. required operating pressure	2 times greater than pressure loss (refer to measuring ranges)
	Pressure tightness (vacuum) H250/C	For detailed information refer to Pressure tightness (vacuum) H250/C on page 14.
	Pressure/temperature for the optional heating of the measuring cone
	DN15...DN50	PS = 40barg/ 580psig, TS = 300°C/ 572°F
	DN80...DN100	PS = 25barg/ 363psig, TS = 300°C/ 572°F
	Ingress protection
	M40, M40R	IP66/68 according to EN60529, NEMA 4/4X/6 according to NEMA 250
	M40R	IP69K according to DIN40050-9
	Float damping during gas measurement recommended
	DN15...25/ 1/2...1"	Operating pressure <0.3barg/ 4.4psig
	DN50...100/ 2...4"	Operating pressure <0.2barg/ 2.9psig

Product certifications
 

ATEX/ IECEx/ UKEx
M40 mechanical	II2GD IIC Ex h II3GD IIIC Ex h
M40 electrical	II2G Ex ia IIC T6 Gb II2G Ex db IIC T6 Gb II3G Ex ec IIC T6 Gc II2D Ex tb IIIC T70°C Db II2D Ex ia IIIC T85°C Db
FM (US/C)
M40 electrical	IS Class I Div 1, Class I Zone 1 AEx ia/Ex ia XP Class I Div 1, Class I Zone 1 AEx d/Ex d NI Class I Div 2, Class I Zone 2 AEx nA/Ex nA DIP Class II / III Div 1, Class II/III Zone 21 AEx tb Certified electrical safety for ordinary location / general purpose
NEPSI
M40 mechanical	Ex ia, Ex d, Ex ec, Ex t
CCOE/PESO
M40 electrical	Ex ia, Ex d
EAC
M40 mechanical	Ex c
M40 electrical	x ia, Ex d, Ex nA, Ex t
INMETRO
M40 electrical	Ex ia, Ex d, Ex ec, Ex t
KGS
M40 electrical	Ex ia, Ex d, Ex ec, Ex t

 

Packing and Shipping

We have extensive cooperation with EMS, TNT,DHL, UPS, Fedex, etc. We will deliver the goods you need to your designated location as soon as possible



Our company





Why chose us:
Question 1:
How long will you give me reply?
We will contact you with 2 hours.
Question 2:
Could i get samples?
Yes,we have materials in stock to help you get the samples ASAP.
Question 3:
How about the quality?
We have the certification ISO9001 CE SIL ROSH EX.
Question 4:
What about the price?
You get what you pay for,we will give you best price with best quality products.
Question 5:
What aout the delivey time?
We have materials in stock,Strong executive team to make sure you get the goods ASAP.
Question 6:
Could i visit your factory
Yes,of course.

ShangHai ZhaoDi Automation Instruments co.,ltd is a professional company specializing in production automation instruments and matching. ZhaoDi has strong technical strength and researchs account over 40% of the total number of company, with well- developed prodection facilities and strong processing capacity .ZhaoDi product include flowmeter series,liquid level instruments series, temperature sensor series and pressure series and diaplay instruments and so on,. All products are certified with certification such as ROHS,ISO,CE,EX,etc

ZhaoDI products have been widely used in power,petro,chemical,metallurgy,papermaking,medicine,city heating,food,textile and sewage treatment industries.
ZhaoDi keeps on :Quality First,Faith First.we truely hope all domestic and foreige customers contact us freely and we will also develop more high quality and cheap product that meet you need.

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