Good DCS

Epro PR6423/10R-040 CON021 Brand New And Original

Description

To avoid this, sensors of the PR 9266/.. family have additional lifting coils to adjust the centre position of the seismic element by feeding a lifting current of up to 7mA into that coil. When using sensors of the PR 9268/.. family, lifting currents may be fed directly into the measuring coil. However, this current must be decoupled from the measuring signal. Measuring amplifiers of the MMS 6000 family are designed to support this operation and to supply lifting currents for absolute bearing vibration sensors

The measuring element of the absolute bearing vibra tion sensors PR 9266 and PR 9268 consist of a seismic mass with a coil, suspended on membrane springs and moving in the circular gap of a permanent magnet. The membrane springs lead the measuring element in the longitudinal direction (=measuring direction). The sensors are operated above the resonance frequency, which is between 4 and 13 Hz, depending on the type. The seismic mass remains at rest and due to the vibration of the sensor housing, an electric signal proportional to the vibration velocity is generated. epro – transducers are dynamic sensors with the measuring coil as part of the seismic element, moving in the field of the permanent magnet. Damping of the measuring elements is realised by damping cylinders resp. by exter nal wiring and set to a value of approx. 0,6, resulting in a very linear characteristic over the entire frequency range. Measurements below the resonance frequency can be made with corresponding corrections of the amplitude responses. In case of too high vibration amplitudes, mechanical limit stops reduce the maximum amplitude of the seismic systems. Each transducer is designed for one meas uring direction (vertical or horizontal). Deviations of these directions will result in rest positions of the seis mic mass different to the normal positions which effects a reduction of the maximum vibration amplitude and the generation of additional spurious resonance’s

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for many years, is a professional engaged in large-scale system (distributed control system, programmable controller, redundant fault-tolerant control systems, robot control system, large servo control system is the central feeding system plastic molding auxiliary equipment and automation of whole plant planning) imported automation system such as spare parts, modules, sales and system integration of high-tech enterprises. The company is equipped with professional technicians to provide customers with better service.

Our Supply Range

1. Allen-Bradley 1756/1769/1771/1785 Series (1769-L30ERMS,1769-L30ER-NSE,1769-L33ERMS,1756-L61,1756-L62,1756-L73）
2. ABB 800xA/Bailey INFI90/DSQC/ Series (07KT98 WT98,07KT97 WT97,DSQC679,IMASI23,IMDSO14...)
3. Bently Nevada 3500/3300 Series (3500/42M ,3500/22M,3500/95.3500/15)
4. Schneider Modicon Series (140CPU65150,140CPU67060,140CRA ,140CPS)
5. GE IC693/IC697/IC698/IS200/DS200 Series (IC693CPU363,IC697PWR711,369-HI-0-0-0-0,DS200ADGIH1AA)
6. SIEMENS MOORE/S5 Series (6ES7 cards,6ES5,6DD,6DP)
7. Westinghouse/OVATION (1C31194G01,1C31197G01,5X00106G01,1C31125G02...)
8. ROSEMOUNT: (3008,3664,3805E.3704E,3700A 4351B...)
9. FOXBORO (FCP270,FBM203,FBM204,FBM217,FMB231...)

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2.Packing in professional anti-static bag.
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