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Rflo-VC211L Electronic Volume Corrector
The VC211L™ is an advanced, high accuracy,
single stream flow computer specially designed to
meet the emerging requirements of gas
distribution utilities.
It defines a new standard for ease of use while
delivering unmatched levels of performance and
flexibility.
The VC211L incorporates wide range of features
which not only meets the local metering
requirements, but also provides a complete
solution for the gas distribution utilities to achieve
fast, efficient and cost effective network operation
and management.
• Approved by NMI for legal metrology
• EN 12405 compliant
• AGA 5, AGA 7, AGA 8, GERG
• ISO 6976 calculations
• Complies with ISO 12213-3
• Certified for use in hazardous locations
• F l e x i b l e gas chromatograph connection
• Remote upload/download of gas information
• 1 year history of Vm, Vc, Vb, M, E, P and T
• Hierarchical alarm and early warning structure
• 64 bit normal and disturbed accumulators
• Min, max, average data storage
• Multi level data safety and security
• Connects to all common turbine types
• Dual high and low pulse inputs
• AGA 7 compliant meter correction
• Allows direct NAMUR sensor connection
• System-wide distribution of gas information
• 4 communication ports
• 1 isolated RS232/RS485
• port for remote connections
• MODBUS master and slave support
• Easy access thru Internet
• Local and remote configuration
• and programming software
• 32 bit RISC based high performance design
• AGA 8 detailed calculations in 30 msec
• Expandable memory
• High isolation, precision I/O
• 24 bit analog input resolution
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VC211LL is a durable, maintenance-free, advanced electronic volume
corrector specially designed for applications where power and
communication lines are costly or unavailable.
With its battery powered design and its embedded communications
interface, it meets all types of volume correction and reporting needs
without any maintenance for at least 5 years.
Embedded GSM hardware enables wide area coverage with various
operators worldwide.VC211LL supports GPRS and EDGE, for reporting,
remote access, configuration, and transmission of control commands.
Approved for Legal MetrologyVC211L™ has compatible gas measurements for EN 12405 which is approved by Holland NMI. This approval includes that the product is fully functional and suitable for hard environments.
Broad Calculation RangeMain calculation standards are AGA 5, AGA 7, AGA 8, GERG, ISO 6976 and ISO 12213-3 which include mass, energy, volume, density, calorific value, relative density and compressibility values.
Pipeline MonitoringVC211LL can be used for monitoring critical pipelines, supplying majority of gas to the cities and to prevent seller from loss of money due to different pressure, tempreature and gas content.
Key Customer MonitoringVC211LL is ideal for monitoring, logging and reporting of various parameters of key customers of gas utilities which consume majority of gas such as hospitals, hotels, factories, and industrial zones.
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The Nova-Flow Series of flow computers is a family of highly flexible, modular flow computers designed for
basic rate and total flow display, batch control for liquid and gas flow measurement, as well as for
thermal energy measurement. With more than 500,000 unique configurations possible, the potential
applications for these devices is almost limitless.
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The lightning fast Thermo Scientific AutoEXEC flow computer and remote telemetry unit integrates measurement and control functionality for both natural gas and petroleum liquids. This highly accurate hybrid system efficiently calculates flow on four to 32 runs at an unprecedented rate of 10 times per second. It features unsurpassed expandability, USB connectivity and security, giving users unbeatable flexibility and functionality.
Powered by a 32-bit processor, the AutoEXEC natural gas and petroleum liquids flow computer operates at greater than 300 million instructions per second (MIPS), making it the fastest flow computer on the market today. This computational speed, in combination with its 32-bit floating point capabilities, give the system unequalled power. It solves complicated AGA and API equations rapidly and accurately on up to 32 runs simultaneously.
The AutoEXEC features:
- A preloaded default configuration
- USB connectivity via three ports: host, slave-device and on-the-go (OTG)
- Secure access controls, authentication and built-in encryption.
- Built-in lightning protection on each board.
- A processor that operates at the widest temperature range in the industry: -40 C (-40 F) to 85 C (185 F).
- AO accuracies of ±0.1% over the full temperature range.
The standard AutoEXEC includes a CPU board, power supply and an enclosure with six available board slots. Optional boards can be added to increase input/output as necessary and each board has its own 32-bit ARM 7 industrial grade processor, enabling the most rapid communication to the motherboard.
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The flowcom compensates for flowmeter errors due to pressure or temperature variations and computes mass or standard volume flow rates for gases, steam or liquids. It can even do so for a pair monitoring stations. It also computes heat transfer rates and thermal-energy contents for heat transfer media or refrigerants.
As a two channel version, the flowcom can calculate balances between supply and return lines.
A particular advantage of the flowcom: It does not operate based on problematic equations, but integrates a number of permanently stored tables of the mass densities and enthalpies of commonly employed media.
Flowcom will compensate the infloence of temperature and pressure on virtually each flowmeter such as integrating pitot tubes, orifices, venturis, vortex meters, mag meters, ultrasonic flowmeters, PD-meters…
The flowcom communications software runs under Windows.
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With more than a quarter of a million units in operation, in applications around the world, Cameron is the undeniable leader in the design and manufacture of totalizers and flow analyzers. The NuFlo MC Family of Flow Analyzers delivers a broad range of functionality and capability from the straightforward MC-II Totalizer, which provides rate and flow, to the MC-III EXP Flow Analyzer, which utilizes Modbus® communications to download extensive archival logs in less than a minute. The MC Family of Flow Analyzers is ideal for use with Cameron's comprehensive line of turbine meters and performs equally well with all turbine brands on the market today.
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