> H250 M40 1The modular variable area flowmeterCFM Continuous Float Monitoring • Modular design: from mechanical to signal outputs and fieldbus communication • Application diagnostics such as float blockade or pulsation detection • A device that meets all global Ex requirements • Sturdy, closed tube design for high resistance to pressure, temperature and medium

KROHNE – Measure the facts Welcome to KROHNE. As a leader in process measuring technology, we’re at home in a wide variety of industries worldwide. The name KROHNE has stood for innovative and reliable solutions since 1921. The company now offers a whole spectrum of instruments for flow, level, temperature and pressure measurement as well as process analysis. Our portfolio is rounded out by comprehensive services and consulting. Cost-effective and reliable variable area flowmeters are the first choice for the applications where a local indication is required to guarantee the redundancy of a measurement...

Proven quality from KROHNE From universal to one-of-a-kind: KROHNE‘s H250 variable area flowmeters cover the entire range of requirements in the process industry. At KROHNE, the modular device design of the H250 M40 combined with a flexible production structure form the basis for application and customer specific versions. As with every KROHNE variable area flowmeter, you can count on reliability and repeatability. Each device is individually calibrated for the respective application. And the robust metal version - available in a variety of materials - provides a high degree of resistance to...

intelligent Modularity Application-oriented and always ready for new tasks Modularity of electronics The H250 M40 is purely mechanical in design and this forms the basis for its flexible uses. Additional electronic modules can be added or replaced at any time, making it possible to scale the functionality at will. This way the device adapts easily to any changing requirements. Anything is possible, from analogue flow measurement without auxiliary power 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...

Electrical options 3 versions: • Potential-free reed switch • Can be combined with limit switches • HART® 7 certified communication • Internal interface to extension modules • Simple loop-check at push of button Totaliser with pulse output, limit switches and LCD ' Counter module with graphic display to indicate flow, counter reading, additional information and operating menu ' Power supply via sensor module ' Operation and parameter setting via internal microswitch or externally using a bar magnet PROFIBUS® PA or FOUNDATION™ ITK 6 fieldbus Power supply for entire device from 2-wire bus (16 mA...

Report application diagnostics via HART® 7 or the LCD/IO module CFM upgrades the existing electronic device diagnostics with float-specific application diagnostics. Continuous Float Monitoring (CFM) identifies: • Float blockages because of dirt or pressure bumps • Compressional vibrations • Pulsating flow during liquid measurements e.g. because of displacement pumps • Missing or incorrectly installed floats after maintenance •External, interfering magnetic DC fields FailureFloat is blocked a Out of specification Pulsating flow detected CFM - Continuous Float Monitoring Application-specific classification...

superior Performance The package for hazardous areas H250 M40 from KROHNE offers a universal Ex-design across a wide range of usage zones and protection types. Intrinsically safe electronics All electronic components are designed intrinsically safe and non-sparking and can be used in areas that are explosive due to the presence of gas or dust. As an option, the same components, featuring a safety housing, can be installed as explosion proof devices. One device can thus accommodate the different regional explosion protection strategies. H250 M40 is ATEX-, IECEx- and FM-approved for the USA and...

superior Performance Robust design for harsh process conditions The measuring principle allows for a robust, closed tube design without sensor feedthrough, as the height of the float is transferred to the indicator by way of a magnetic coupling. This enables high pressure versions that can withstand up to 900 barg/13,000 psig. All wetted, pressurised parts are made as standard of 1.4401/1.4404 and 316/316L dual certified stainless steel and meet the requirements of the NACE MR0175/MR0103 standard. To guarantee the longevity of the device even with chemically harsh products, it is possible to...

superior Performance Special indicator variants for extreme operating conditions With the indicator housing made of stainless steel, the H250 M40R withstands attacks from salt fogs and contaminated precipitates. It can be reliably used in corrosive atmospheres and is perfectly suited for use in spray water zones, such as in the food and beverage industries as well as in offshore or marine applications. As a high-temperature variant, the H250 M40HT measuring device is suitable both for very high product temperatures up to +400 °C/+752 °F as well as cryogenic applications down to –200 °C/–328 °F....

superior Performance Hygienic design for use in the food and pharma industries The H250F M40 is a variable area flowmeter with hygienic design for food and pharmaceutical applications. FDA, EC1935 and GB4806 compliant materials meet strict hygienic and legal regulations. A design with no dead spaces or stagnation zones as well as pickled and optional electropolished surface of the wetted parts with a surface roughness Ra <0.8 µm make it difficult for deposits to settle and facilitate proper cleaning. The outstanding properties of the H250F M40 are used in the pharmaceutical industry in areas...

superior Performance Standard measuring range The expanded measuring range provides more process information Depending on the technology, the standard measuring range span of the H250 M40 is 10:1. As an option, it is possible to refine the measuring range span – and this is worldwide unique for measuring devices in this category – to 100:1. This way the otherwise necessary additional measuring devices for small quantities are no longer necessary. Expanded measuring range