INDICATORS & SWITCHES DP Instruments Nuclear Switches Orifice Meters Temperature Switches Transmitters

763A Gage Pressure Transmitter

The 763A gage pressure transmitter utilises a Bourdon tube transducer type C and offers a 4-to 20-mA or 10-to 50-mA yield message for transmission to distant viewing, controlling or reading equipment. It is suitable for a multitude of safety associated tasks in nuclear power producing stations, including stress of the pressurizer and stress of the steam generator. The transmitter is suggested for applications that usually function over 75 percent of the factory-calibrated period or for applications needing zero suppression. The tool is intended to function for a restricted moment beyond its ordinary working climate requirements under the negative circumstances experienced during and after an event in the containment of a nuclear power plant. These negative surroundings include serious adjustments in atmospheric stress, heat and moisture, seismic events, and exposed to radiation.
The 763A transmitter is mechanically actuated by a Bourdon tube transducer of type C and fitted with an electronic circuit for detecting gage pressure and translating it to a 4-to 20-mA or 10-to 50-mA yield. The Bourdon C-type pipe is an arc-shaped metal pipe that is cross-section elliptical and closed at one edge. The reverse edge, which is closed, is connected to the origin of stress. The pressure placed inside the pipe influences its form and acts on the sensing element.
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763A

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SKU: CSC76 Categories: ,

Description

SPECIFICATIONS

763A Gage Pressure Transmitter

To run the transmission circuit, a controlled DC energy distribution is needed. The 763A transmitter’s electronic components are located in a rough, pressurized box to avoid steam intrusion. An EGS ® quick-disconnect plug ensures the stability of electrical links and particularly engineered radiation-resistant electronic components minimize degradation connected with nuclear radiation exposure. A normal enclosure cover allows simple entry to zero-span adaptation checks.A wire is welded to the Bourdon tube’s loose bottom and to a strain gauge frame.

Pressure fed to the Bourdon tube appears to bend the pipe, which splits the strain gauge column proportionally. Motion of the beam’s loose side transfers pressure to one strain gage, expanding its strength and compression to the other, reducing its strength. The two gauges create a bridge circuit and the transmitter electronics condition the bridge yield stream and convert it to a 4-to 20-mA or 10-to 50-mA yield stream. The input wave is transferred to distant transmitting equipment via a two-wire transmission loop.

 

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