Last updateTue, 02 Jan 2018 3am

Bunker fuel metering systems

Endress+Houser bunker fuel metering system is based upon the tried-and-tested Coriolis mass measurement, which has been used successfully in custody transfer applications in the oil and gas industry for decades. It eliminates problems with traditional measurements and ensures maximum transparency during the bunker procedure. This system, developed and patented by application specialists, ensures that air pockets are included correctly in the measurement when emptying tanks.

  • Confidence and profitability at the same time guaranteed thanks to accurate and indisputable billing of the supplied bunker fuel quantity
  • Increased transparency by monitoring simultaneously multiple process parameters during the entire fueling process and detecting air pockets, as well as potential "cappuccino effects" that occure when stripping tanks
  • Higher and sustainable efficiency with shorter idle times thanks to accurate direct mass measurement without converting volume
  • Unlimited security with a measuring system certified in accordance with MID (MI-005) and recognized for commercial use by the Maritime Port Authority (MPA) of Singapore
  • Time-saving because of simple operation and optimal control with an easy-to-understand control panel for tracking important parameters directly, or print them out at any time for consulting as evidence in case of ambiguities

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New I/O Breakout Boards from Opto 22 Increase Current Switching Up to 12x

New SNAP-UDC-HDB-G4 and SNAP-UDC-HDB breakout boards from industrial automation manufacturer Opto 22 boost the capabilities of 32-point SNAP digital I/O modules, simplify field wiring, and save panel space. With the SNAP-UDC-HDB-G4 breakout board, OEMs, machine builders, and automation professionals can connect 32-point SNAP digital I/O modules to higher loads and gain the reliability of fused outputs and isolated inputs, while the space-saving SNAP-UDC-HDB breakout board provides convenient spring-clamp connectors for up to 32 field devices, all in a small footprint. Both new breakout boards are part of Opto 22’s SNAP PAC System, which includes programmable automation controllers (PACs), Ethernet-based I/O systems, and PAC Project automation software.

The SNAP-UDC-HDB-G4 breakout board holds up to 32 popular and guaranteed-for-life Opto 22 single-point G4 digital I/O modules (sold separately). These modules can provide up to 3 amps current switching or sensing per point, fused outputs, isolated inputs, and per-point LED indicators, depending on the G4 modules selected. For example, using G4 digital output modules on the breakout board lets a SNAP-ODC-32-SNK 32-point module switch up to 12 times its regular current load of 0.25 amps. Spring-clamp connectors secure field wiring and reduce installation time.

“The SNAP-UDC-HDB-G4 breakout board lets us keep the original field wiring when we retrofit older thermoforming machines with modern SNAP PAC control systems,” says Chuck Phillips, Director of Electrical Engineering at Thermoforming Systems in Union Gap, Washington. “This reduces the labor and materials required,” he continues, “so we can submit lower and more competitive quotes for retrofit jobs.” Having G4 I/O modules on the breakout board is another benefit, says Phillips, pointing out that the single-point modules are convenient and easily changed if needed.

The SNAP-UDC-HDB breakout board consolidates wiring for a 32-point SNAP digital I/O module into a compact 4.0 in. x 3.3 in. (101 mm x 83 mm) board, which simplifies installation, reduces labor costs, and saves valuable space inside enclosures and machines. The SNAP-UDC-HDB board includes convenient per-point LED indicators that show point status and are invaluable for troubleshooting and maintenance. Easy-to-use spring-clamp connectors hold field wiring securely in place.

Supported I/O Modules and Required Cables

SNAP-UDC-HDB-G4 breakout boards connect to SNAP-IDC-32DN and SNAP-IDC-32N digital input modules, and SNAP-ODC-32-SNK and SNAP-ODC-32-SNK-FM digital output modules. SNAP-UDC-HDB breakout boards work with all SNAP 32-point digital input and output modules. Both breakout boards connect to these 32-point SNAP digital I/O modules using the SNAP-HD-BF6 cable, available separately from Opto 22.

Fairchild I/P transducers deliver high accuracy at very low pressures

Rotork Fairchild has launched a new range of compact low pressure I/P (electro-pneumatic) transducers for instrument, analytical and scientific control applications.

Precise pressure control, where output pressures must be accurately held at low pressures down to 70 mBar (1 psi), has traditionally been a difficult task for industrial instrumentation. The new Rotork Fairchild T7500 range of transducers is specifically designed for these low pressure control systems with set point accuracy of 0.1%, even at pressures of less than 100 mBar.

T7500 transducers accept supply pressures between 1.3 and 2 Bar (20 and 30 psi) with mA or VDC control signals to deliver critical high accuracy output ranges of 0-350 mBar (0-5 psi) and 0-1 Bar (0-15 psi). Flow configurations of 85 l/m or 200 l/m suit a wide range of application requirements. In addition, the T7500 can be ordered with DIN plug, NPT conduit or terminal block electrical connections styles to suit assembly requirements.

Applications in test and medical equipment, leak detection equipment and other precise scientific areas are ideal for the T7500 transducers. The rugged cast aluminium construction and vibration resistant internal componentry is designed to withstand the rigors of both portable and stationary mounted equipment often found in medical and test situations.

As part of Rotork Instruments, Fairchild provides a complete range of regulators, boosters, I/P transducers and other products. Rotork Instruments can also provide fully approved switchboxes, positioners, solenoid valves and other actuation and severe service components to complete the automated flow control package.

Utilize braking energy effectively: B&R expands its ACOPOS P3 servo

The new 2-axis modules from B&R's ACOPOS P3 series feed braking energy back into the mains. This function significantly improves the overall effectiveness of a machine. With just 500 watts of regenerative braking power, the function pays for itself in only a year.

A prime candidate for this function are machine tools, whose headstock spindle drives generate large amounts of braking energy that would otherwise go unused. The function is also well suited for conveyor systems that move heavy loads vertically. Without power regeneration, not only would the braking energy go to waste, but the resulting heat would require additional cooling and consume even more power.

Regenerative braking is implemented particularly efficiently in the new 2-axis modules from the ACOPOS P3 series. One of the axes is configured as the feedback path to return excess power to the mains.
Additional functions with ACOPOSmulti

Like the new ACOPOS P3, the active power supply modules from the ACOPOSmulti series also support regenerative braking. These models also offer other helpful functions such as stabilization of the DC bus voltage and compensation of the reactive power.

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Chinese pipelines select Rotork electro-hydraulic valve actuators for remote failsafe duty

Rotork pipeline.jpgRotork Skilmatic electro-hydraulic valve actuators have been ordered for increased safety ESD (Emergency Shutdown) duties on two new oil pipelines in China. Owned by the China National Petroleum Corporation, the Mahui and Yunnan Pipelines are attached to the network bringing oil and gas to China from offshore fields in the Bay of Bengal.

The Skilmatic actuators will be installed in automated and unattended valve chambers at pump stations, where they will provide isolating and failsafe ESD functions. These valves, known as ROSOV (Remote Operated Shut-off Valves), are designed to isolate sections of the pipelines in the event of a potential emergency. By providing swift and accurate valve movement in one direction and very reliable mechanical spring return movement in the failsafe direction, Rotork’s self-contained electro-hydraulic actuator design is successfully utilised for this type of critical application in many countries.

The Skilmatic actuator combines reliable failsafe performance with the benefits of Rotork IQ intelligent electric actuation technologies, facilitating remote supervision with a high level of asset management encompassing accurate control, monitoring and alarm signalling, operational data logging and diagnostics. The ESD function can be configured to operate on loss of mains power or control signal, with additional options including a second, independent ESD circuit and an ESD manual reset also available.

Designed for functional safety applications SIL 2 with a HFT 0 to IEC 61508:2010 the Skilmatic actuator is also offered with a partial stroke testing capability, enabling the valve to be function tested without interrupting the process - performed either locally or remotely from the control room. The actuator is available with worldwide hazardous area certification, whilst the double-sealed electric enclosure is watertight and dustproof in ratings up to IP68 (submersion at 7 metres for 72 hours.