Rotork Process Controls has launched a new range of compact, robust and reliable electric actuators for control valves, regulators and other continuous modulating applications. The CMA (Compact Modulating Actuator) extends the scope of Rotork’s proven technologies and the benefits inherent in the innovative Rotork CVA electric control valve actuator range. The CMA range increases the areas of flow control that can take advantage of these advanced features.

The Rotork CMA is available in linear, quarter-turn and multi-turn versions and a range of five compact sizes, facilitating the economical operation of numerous types of control valve, damper and pump stroke adjuster applications. Single-phase or DC electrical power supply is all that is required for control valve actuation, saving the on-going costs associated with the operation and maintenance of instrument air supplies.

The maintenance-free CMA drive train, permanently lubricated and protected in an IP67 watertight and, where required, explosionproof enclosure, can be mounted in any orientation. Accepting an industry-standard 4 -20mA command signal, the CMA delivers accurate and repeatable positional control. Resolution is 0.25% on linear and quarter-turn applications and 2 degrees on the multi-turn configuration.

Continuous and unrestricted modulating performance is provided by a brushless DC motor, magnetic contactless sensors and a lubricated for life drive train.

Please visit Rotork for details.

Yokogawa Electric Corporation announces that it will release an enhanced version of the DPharp EJA series pressure/differential pressure transmitters, one of its core sensor products, on June 20.

While remaining in the same price range, the enhanced DPharp EJA series transmitters will now offer significantly improved performance and functionality, bringing great cost benefits to our customers. As standard features, they will have the same high-speed response and multi-sensing functionality available with the high-end DPharp EJX series.

For further details on this please click Yokogawa

National Instrumentsrecently announced the NI PXIe-4357 RTD module, the latest addition to its SC Express sensor measurement family for PXI Express. The high-performance module is optimized for temperature measurements with Pt100 RTD sensors for a variety of thermal monitoring applications. The NI PXIe-4357 module integrates sensor-specific signal conditioning with 24-bit ADCs to sample all 20 channels at 100 S/s and offers typical accuracies of up to 0.09 degrees Celsius. To expand a system’s channel count, engineers can integrate additional NI PXIe-4357 modules or use other SC Express modules to add complementary sensor inputs including thermocouples, strain gages, accelerometers and FBG optical sensors to the same system.

For details on this product please click National Instruments

Zurich, Switzerland, Apr. 24, 2012 – ABB, the leading power and automation technology group, announced the release of several new products as part of its Symphony™ Plus total plant automation platform for the power generation and water industries.

The new products include a new high-performance process controller named Symphony Plus Control HPC800 and three interface modules that expand the connectivity of the controller to intelligent electronic devices using the PROFIBUS DP and HART communication protocols.

HPC800 joins existing Symphony Plus Rack controllers and is suitable for applications that require modular DIN rail packaging. It also features a fast ethernet-based plant network that makes it ideal for geographically distributed control applications in conventional or renewable power plants and water networks.

The new controller combined with PROFIBUS and HART enables integration of intelligent devices such as smart transmitters, actuators, motor control centers, flame scanners and other electronic products. By using the same function code algorithms as Symphony Plus, Harmony, and INFI 90, the HPC800 controller enables customers to effectively reuse their extensive library of ABB control solutions.

“These new products are designed to provide maximum system flexibility, reliability and efficiency” said Franz-Josef Mengede, head of ABB’s Power Generation business, a part of the company’s Power systems division. “The initiative supports ABB’s continued commitment to Symphony Plus and is part of our ‘evolution without obsolescence' approach of introducing new technology while protecting the long-term investment of customers by ensuring compatibility with preceding generations.”