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AccuSense Model ASM Delivers Remarkable Performance
Our new AccuSense Model ASM pressure transducer sets a new standard for accuracy and performance. The Model ASM meets the ever increasing demand for greater accuracy to accomodate the technological advancements of today's complex test systems.
Well suited for high-tech industrial, laboratory and aerospace applications, vacuum systems, dynamometers and engine test cells, the ASM delivers  remarkable performance. The ASM offers 0.05% Full Scale (End-Point Accuracy) or 0.1% of Reading accuracy ensuring stable, repeatable and precise pressure readings throughout the testing process. The output is virtually unaffected by wide shifts in environmental temperature. The ASM total error band is <+/- 0.25% of full scale, virtually eliminating thermal error. This exceptional performance is achieved by combining Setra's unique electronic circuitry with its patented digital sensor.
Exceptional Overpressure Protection
Some test systems may experience pressure spikes that would affect the performance of most pressure transducers, but Setra's Model ASM offers standard overpressure protection up to 2X proof pressure and a patented high overpressure protection option that enables up to10X proof pressure.
Designed to Suit Your Test Application
Combined with the exceptional performance of this unit, pressure ranges are offered from 0 to -14.7 PSIV up to 1000 PSI in gauge or absolute pressures and choice of 0 to 5Vdc, 0 to 10 Vdc, or 4 to 20 mA output. A wide range of pressure and electrical connectors are also offered, maximizing the adaptability of the ASM to a wide variety of test system applications.
The AccuSense Model ASM features
outperform the competition:
- Exceptional 0.05% FS End-Point Accuracy
- Excellent thermal performance
- Custom patented digital sensor
- 10X proof pressure overpressure protection option
- A wide range of pressure and electrical connections
- Secure Calibration Module (Accessory)
- Secure and simple field calibration
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End Point Accuracy vs. Best Fit Straight Line
Model ASM specifies Non-Linearity as End-Point Method which is the relationship of the calibration curve to a specified straight line through its endpoints (e.g., Zero and Full Scale). Best-Fit Straight Line (BFSL) method is the relationship of the calibration curve to a calculated straight line that minimizes the error but does not pass through the end points. BFSL method effectively cuts the End-point value in half.
For a given Non-linearity specification, a product specified with End-Point Non-linearity will provide greater accuracy (i.e. lower uncertainty) than a product specified using BFSL method. The End-Point specification is more meaningful during re-calibration processes where the end-points become Zero and Full Scale outputs.
Best Fit Straight Line Method Example: +/- 0.025% Full Scale |
End Point Method Example: +/- 0.05% Full Scale | |
Tough pressure sensor provides inside
look at volcano...
Shishaldin Volcano  | In the middle of the cold North Pacific, 675 miles from anchorage, is Alaska's Shishaldin volcano. It's one of more than 40 active volcanoes in the Aleutian Islands and part of the celebrated Ring of Fire, a zone of frequent earthquakes and volcanic eruptions. Despite the remote setting Shishaldin and the other Aleutian volcanoes pose a very serious threat. It's a threat that scientists, armed with modern technolgy, are hoping to eliminate.
The dangers come from the location of a key corridor for international air
Model 239 Pressure Transducer | traffic above the volcanoes. The U.S. Geological Survey estimates that at least 10,000 passengers and millions of dollars of cargo fly over the volcanoes in the North Pacific every day. Volcanic eruption plumes and ash clouds not only disrupt air traffic but also put aircraft at risk. For example, airplanes that have entered clouds of ash have sustained extraordinary damage and even engine failure. KLM747 lost all four engines when it unknowingly entered a cloud of ash that had blown into its path from Alaska's Redoubt volcano. Smoke and strong odor of sulfur filled the cockpit and cabin as the crippled jet fell more than two miles before the crew was able to restart the engines. The aircraft needed $80 million in repairs...read on... |
