REDWIRE Pressure transmitter by AST meets challenges of steel, aluminum sectors

March 30, 2023 REDWIRE is news you can use from leading suppliers. Powered by FRASERS.

The AST AST47SM steel- and rolling-mill pressure transmitter from Durham Instruments

AST measurement instrumentation is available in Canada through Durham Instruments, including the AST47SM steel- and rolling-mill pressure transmitter. This solution can perform in rugged environments and also meet the extreme challenges of the steel and aluminum sectors. Its pressure-port design is compatible with the high pressure spikes when the slab is entering and exiting a rolling mill. Among other applications that benefit from this pressure transmitter are roll forming, stamping, coolant systems, and pumps.

Internal protection against pressure spikes

The AST47SM steel- and rolling-mill pressure transmitter is a versatile tool that works for scenarios in a wide range of industries. Durham Instruments deems it suitable for use in general manufacturing, aerospace, automation, food processing, pharmaceuticals, forestry, education, the medical field, the military, mining, packaging, power generation, alternative energy, transportation, and research and development.

Among the design advantages of the AST47SM: Krystal Bond technology; no silicone oil, welds, or internal O-rings; high proof and burst pressure ratings; a special internal restrictor that maintains a high-frequency response of approximately one kilohertz; internal protection against pressure spikes; and sealing against water ingress. A ¼ BSPP male process connection is available, and customers can contact the AST factory for other options.

When used at a temperature of 25 degrees Celsius, this pressure transmitter offers an accuracy of plus or minus 0.1 per cent BFSL and a typical one-year stability of plus or minus 0.1 per cent of FS. It also has a proof pressure of five times the rated pressure and a burst pressure of either ten times the rated pressure or 20,000 pounds per square inch, whichever is lower. The AST47SM offers more than 100 million pressure cycles, and its accuracy includes non-linearity, hysteresis, and non-repeatability.

Other technical specifications:

  • Operating temperature: -40 to 85 degrees Celsius
  • Storage temperature: -50 to 125 degrees Celsius
  • Compensated range: zero to 70 degrees Celsius
  • TC zero and TC span: less than plus or minus ½ a per cent of FS
  • Output signal: 4-10mA, 0-5 volts, or 0-10 volts
  • Excitation: 10-28VDC or 15-30VDC
  • Reverse polarity protection: yes

For more information, contact Durham Instruments.


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