Ultra Electronics, Nuclear Sensors & Process Instrumentation
- PO Box 300
- Round Rock, TX 78680-0300
- Tel. Toll Free: 800-880-9333
- Tel.: 512-434-2800
Ultra Electronics, Nuclear Sensors & Process Instrumentation is a business name of Weed Instrument Co., Inc.
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Ultra Electronics, Nuclear Sensors & Process Instrumentation
In November 2008, Weed Instrument Co., Inc was acquired by Ultra Electronics Holdings plc. Ultra Electronics, which employs over 3,000 people worldwide, focuses on high integrity sensing, control, communication and display systems with an emphasis on integrated Information Technology solutions. The Group concentrates on obtaining a technological edge in niche markets, with many of its products and technologies being market leaders in their field. For additional information on Ultra Electronics, please visit: www.ultra-electronics.com
There have been no personnel or organizational changes at Weed Instrument as a result of the acquisition and the company continues to operate from its Round Rock, Texas facility. While the legal name of Weed Instrument Co., Inc. is being retained, to leverage the global brand of Ultra Electronics, the trading name of Weed Instrument and its website address have been changed to:
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Fiber Optic Networking
Fiber optic signal transmission for process monitoring and control has been progressively adopted in recent years. In critical applications, such as safety shut down systems, with very high requirements for data availability, it has become the transmission technique of choice. This is due to the many advantages that fiber optic signal transmission offers over copper based systems:
- Maximum resistance to interference, even in applications with extreme levels of electromagnetic interference
- High grade electrical isolation between stations
- Long transmission distances with extremely high data rates
- The number of stations is not limited by the electrical properties of the communication interface employed
- Improved security and reliability
This results in a significant gain in performance and immunity to interference for the data communication infrastructure, without having to allow for complex surge protection measures, shielding and equipotential bonding concepts.
Ultra Electronics, NSPI fiber optic modems provide complete physical layer network solutions for both open standard networks and the communication/control networks of most of the major global PLC and control system suppliers. Our standard digital protocols and analog signals include:
- Digital: Industrial Ethernet, Profibus, Modbus, Modbus Plus, ControlNet, DeviceNet, Data Highway Plus, DH-485, Genius, Remote I/O, RS232/484, Reliance R-Net
- Analog: 4-20mA, 0-10V
Ultra Electronics, NSPI has developed and qualified various fiber optic modems for nuclear power generation applications.
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Nuclear Qualified Analog Fiber Optic Data Link
The Ultra Electronics, NSPI nuclear qualified analog fiber optic data link is designed to convert a 0-10VDC signal into a fiber optic signal for transmission, via a fiber optic cable, up to 10,000 ft (3,000 m). Once received, the fiber optic signal is then converted back into a direct proportional analog 0-10VDC signal via a receiver unit. No field adjustments are required, simply apply power, connect the two units with fiber optic cable and supply the input signal to the transmitter.
Our analog fiber optic data link has been qualified to meet the seismic requirements of IEEE 344-1987 and mild environment requirements of IEE 323-1974/1983.
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Nuclear Qualified Analog Fiber Optic Contact Closures
The Ultra Electronics, NSPI fiber optic contact closures can be used to transmit contact closure data up to 16,000 ft (5,000 m) with 200µm cable. The DIN-Rail mount enclosures enable easy installation on industry standard hardware. The FOT-CC transmitter provides a closed contact signal to the FOR-CC receiver, which activates a single pole, double throw relay.
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