Transmitter features 10 Vdc analog output.
Press Release Summary:
Operating from -10 to +40¡ÆC at up to 95% RH, AST3IS isolation amplifier is designed for use with strain-gage transducers in hazardous areas without Zener barriers. DIN-rail mount unit has ADC capable of up to 8,300,000 counts. With built-in support for RS-485 and MODBUS RTU, transmitter can communicate with process control host without external hardware or additional software. Unit accepts up to six 350 §Ù, ATEX-approved load cells and is approved to ATEX II GD.
Original Press Release:
Vishay Nobel AST 3IS Transmitter Supports up to Six 350-Ohm Load-Cell Transducers, Provides A/D Conversion of Over 8 Million Counts, Features Analog Output of 10 VDC
ATEX-Approved AST 3IS can be used in hazardous areas without Zener barriers
MALVERN, PENNSYLVANIA - September 28, 2005 - Vishay Intertechnology, Inc. (NYSE: VSH) announces the introduction of the Vishay Nobel AST3IS transmitter. The AST3IS is a high-performance isolation amplifier designed for use with strain-gage transducers in hazardous areas without the need for Zener barriers. This eases earthing design and installation, and reduces costs and maintenance for process weighing systems in applications such as chemical and pharmaceutical manufacturing.
In addition being suitable for use near inflammable materials and in other hazardous environments, the AST 3IS transmitter also achieves higher temperature stability than previous generation models. The AST3IS features a patented analog-to-digital converter capable of up to 8,300,000 counts. It features a DIN-rail mount for easy and compact mechanical integration. By building in support for popular communication protocols including RS-485 and MODBUS RTU, the AST 3IS transmitter can communicate with a common process control host without requiring external hardware or additional software. Fieldbus communication is possible via the GATE 3S module available separately. The AST 3IS accepts up to six ATEX-approved load cells of 350 ohms each, and is approved to ATEX II GD.
The AST 3IS operates from -10 ¡Æ to +40 ¡ÆC, at up to 95% relative humidity. It is also IP20 ingress-resistant, further enhancing usability in a wide range of environments and applications. The AST 3IS unit features a patented analog-to-digital converter for superior resolution and conversion speed, and has analog as well as digital outputs that allow designers to optimize accuracy and response time. Two relay outputs are provided, with short response time allowing the AST 3IS to be used in high-precision level control applications.
Easy set-up and calibration is an additional feature of the AST 3IS. It can be achieved by using the AST 3IS user interface directly, or by using the deltaCOM configuration tool via a remote PC. DeltaCOM runs on Microsoft Windows operating systems including Windows 95 and Windows NT4.
About Vishay Nobel
Vishay Nobel is part of the Vishay Transducers division of Vishay Measurements Group. Vishay Measurements Group develops, manufactures, and markets a broad range of sensors for a wide variety of test and measurement applications. These include electrical resistance strain gages for both stress analysis testing and transducer manufacturing applications, instrumentation, hybrid strain gage assemblies and transducers for OEM applications and certified load cells for electronic scales and other weighing applications. Vishay Measurements Group is part of Vishay Intertechnology.
About Vishay
Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Companys components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has operations in 17 countries employing over 25,000 people. Vishay can be found on the Internet at www.vishay.com.
Microsoft, Windows, Windows 95, and Windows NT4, are registered trademarks of Microsoft Corporation in the United States and other countries.
Usage in this press release of the Microsoft, Windows, Windows 95, and Windows NT4 names does not in any way express or imply Microsoft's affiliation with, sponsorship of, endorsement of, certification of, or approval of Vishay, Vishay Measurements Group, Vishay Transducers, or Vishay Nobel products.
