40 Flow Level Pressure
Flow Meter Obtains GOST-R Certification
New Level Meter Introduced
KROHNE (Germany), a global technology specialist in the development, manufacture and distribution of accurate, reliable and cost effective measuring instruments for the process industries, announces the new OPTIFLEX 2200 C/F level meter for liquids and solids, which features software-based dynamic parasite rejection (DPR) technology that eliminates false reflections caused by environmental disturbances and product build-up. The 2-wire device is the newest addition to KROHNE’s time domain reflectometry (TDR) guided radar level meters.
OPTIFLEX 2200 C/F is a cost-effective device for tank and silo applications in the chemical industry, as well as in the oil and gas, energy, waste water, mining or pulp and paper sectors. It is ideal for replacing traditional level meters that require higher maintenance, including displacer, RF capacitance, conductive and pressure level meters.
Available with a variety of probes to measure liquids up to 137 feet (40 meters) and solids up to 66 feet (20 meters), the OPTIFLEX 2200 C/F can handle process temperatures up to 570°F (300°C) and pressures up to 580 psg (40 bar).
Unlike other level meters, the OPTIFLEX 2200 C/F provides a remote converter that can be installed up to 328 feet (100 m) from the probe. The snap coupling system permits removal of the housing under process conditions. The level meter complies with the requirement of the safety integrity level SIL 2 and can be used for switch or transmitter function in safety-related systems.
Because the state-of-the-art TDR technology used in the OPTIFLEX 2200 measures level independent from such physical property variations as dielectric constants, pressure or density, the meter is not affected by variations in product characteristics.
Reader Reply Card No 125
McCrometer (USA) is pleased to announce that the advanced differential pressure V-Cone Flow Meter, offering a proven track record for precision flow measurement in rugged environments, has obtained GOST-R Certification and now officially meets Russian national technical standards.
GOST-R certification is a strict approval process to ensure the accuracy of reporting and metrology. It assures McCrometer customers in the Russian market that the V- Cone will accurately and reliably report fluid flows. Typical applications include: oil/gas custody transfer, energy consumption and efficiency, and more.
Designed for accurate and reliable fluid measurement in rugged, space-challenged environments, the V-Cone Flow Meter supports a wide range of oil/gas production and other process industry applications. The V-Cone’s highly compact, no-moving parts design simplifies installation, virtually eliminates maintenance and recalibration, while offering a long life and low life-cycle costs.
McCrometer’s versatile V-Cone Flow Meter is compatible with the demanding standards set by the oil/gas industry. It relies on an advanced differential pressure (DP) flow technology designed with built-in flow conditioning to achieve an accuracy of +0.5%, with a repeatability of +0.1%. It operates over a flow range of 10:1, and comes in line sizes from 0.5 to 120 inches.
With its unique ability to self-condition flow, the V-Cone Flow Meter is a real space-saver, eliminating the need for long up/down stream straight pipe runs required by other dP technologies, such as orifice plates and Venturi tubes. It can be installed virtually anywhere in a piping system or be easily retrofit into an existing piping layout, providing significant installation flexibility and initial cost savings.
Unlike traditional DP instruments such as orifice plates and Venturi tubes, the V-Cone Flow Meter’s design is inherently more accurate because the flow conditioning function is built-into the basic instrument. The V-Cone conditions fluid flow to provide a stable flow profile that increases accuracy. It features a centrally-located cone inside a tube. The cone interacts with the fluid flow and reshapes the velocity profile to create a lower pressure region immediately downstream.
The pressure difference, which is exhibited between the static line pressure and the low pressure created downstream of the cone, can be measured via two pressure sensing taps. One tap is placed slightly upstream of the cone and the other is located in the downstream face of the cone itself. The pressure difference can then be incorporated into a derivation of the Bernoulli equation to determine the fluid flow rate.
The cone’s central position in the line optimises the velocity of the liquid flow at the point of measurement. It forms very short vortices as the flow passes the cone. These short vortices create a low amplitude, high frequency signal for excellent signal stability. The result is a highly stable flow profile that is repeatable for continuously accurate flow measurement. All of this is possible with a minimal straight pipe run of 0 to 3 diameters upstream and 0 to 1 diameters downstream from the flow meter.
Reader Reply Card No 129 Annual Buyers’ Guide 2013 •
www.petro-online.com Differences in Control
High flexibility and reliability are the important characteristics of the PAD differential pressure transducer made by automation specialists KOBOLD Messring GmbH (Germany). This reliable measuring instrument is just as suited to recording absolute and differential pressure as it is to measuring filling levels and flow rates. A multitude of measuring ranges from –1 to over 400 bar and the overpressure models up to 800 bar provide solutions for a wide range of applications.
Tried-and-tested capacitive or piezoresistive sensors ensure high reference accuracy of within ±0.075% of the calibrated measuring range as well as long-term stability. The membrane, which comes into contact with the media during the process, is made of proven, hard-wearing materials (stainless steel, Hastelloy C, tantalum, or Monel) and can withstand process temperatures of up to 120°C. Special multi-level connecting flanges make it
possible to install the pressure transducer vertically without separate fitting pieces or different mounting plates. The protection class is IP 67. ATEX approval will soon be available.
The measuring process is monitored and evaluated using a high-quality microprocessor. This includes the automatic compensation of ambient temperature and process variables, sensor calibration and zero-point adjustment, filtering and damping, continual self-diagnosis and adjustment, as well as data transfer and LCD display. The analogue and frequency output relays the measurement values. Operation and integration in automation systems can also take place using the HART protocol.
Reader Reply Card No 126
Termal Mass Flow Meter Features ATEX Zone 1 Flameproof Approvals
Sage Metering (USA) have announced Sage RIO – their ATEX Zone 1 Thermal Mass Flow Meter approved for II 2G Ex d IIB+H2 T6 Gb Hazardous service for Gas Flow.
The RIO is suitable for Heavy Industrial and Environmental applications, and features the popular Sage In-Situ “Field Zero Calibration Check”. Wide turndown, drift free operation and high contrast graphical display of Flow Rate, Totalised Flow and Temperature are signatures of the Sage Metering technology.
The RIO features a bright, high contrast, photo-emissive OLED (Organic LED) display of Flow Rate, Total and Temperature in an explosion proof, dual-sided NEMA 4X enclosure. The Flow Rate is also displayed graphically in a horizontal bar graph format. Customer wiring is easy, with a separate rear compartment and easy-to-access, well-marked terminals. Powered by 24 VDC (115VAC/230VAC optional), the DC power dissipation is under 2.5 watts. Outputs include 4 – 20 mA proportional to mass flow rate, pulsed outputs of totalised flow, and full Modbus compliant RS485 Communications (HART optional).
Sage RIO has a T6 rating suitable for gases with ignition temperatures as low as 85°C (185°F). Insertion Styles (for pipes from 1” up to 36”) or In-Line Styles (up to 4” with Flow Conditioners) are available (flanges optional). Common applications include Flare Gas Monitoring, Natural Gas Measurement in Industry (to reduce energy usage, cost accounting or improve combustion efficiency) and Landfill & Digester Gas Flow (helps reduce GHG emissions).
Reader Reply Card No 127
Compact Liquid Flow Meter Without Moving Parts
Mass Flow ONLINE B.V., an ecommerce channel from Bronkhorst (Netherlands), presents a new liquid flow meter, available via their internet store. MAG-VIEW is a compact, high quality yet economic device for measuring liquid flow rates in applications where flow sensors with moving parts cannot be applied. It’s interference free operation, combined with a long-life cycle and independence to the inlet and outlet pipework, makes MAG-VIEW the perfect solution even in compact machines and installations. The meter can be used for continuous measurement or for batching and dosing applications.
The MAG-VIEW series operates on the magnetic inductive principle and is therefore suitable for electrically conductive liquids with a
minimum conductivity of 50 µS/cm. The frequency of the pulse output signal and the optional analogue output (4-20 mA) are proportional to the flow. The flow meters feature fast response, low pressure drop and a weatherproof (IP65) enclosure. The instruments can be supplied in three models: for 1…20 l/min, 2…40 l/min and 10…200 l/min.
Reader Reply Card No 128
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