News | August 8, 2007

GE Sensing's Differential Piston Gauge Offers Accurate Calibration

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Billerica, MA - In response to market demand for an accurate, easy-to-use differential pressure standard at high static pressures, GE Sensing introduces the Ruska Model 2482 differential piston gauge. Featuring a patented triple-piston assembly, this new primary standard is designed to calibrate virtually any differential pressure sensing device from 0 to 850 inH2O (2100 mbar) at line pressures up to 2900 psi (200 bar).

GE's Model 2482 is ideally suited as a calibrating instrument for a wide range of applications requiring best-possible accuracy at high line pressures, such as the calibration of pressure transmitters used in custody transfer measurements in the oil & gas industry, and turbine efficiency testing in the power generation sector. It can be used to calibrate the majority of hydraulic or pneumatic pressure devices, including other industrial or portable piston gauges, transducers, transmitters, gauges or pressure switches. It offers an accuracy of 40 ppm of reading + 0.0013 psi and its Windows-based menu-driven software both controls the piston gauge and provides the full range of necessary corrections and calculations.

The Model 2482 eliminates the traditional zeroing process through the use of a precision load cell, or digital force balance. The load cell supports the weight of the differential piston and serves as a null indicator to ensure the line pressure balance point. It also provides feedback to an active control system to ensure the differential pressure produced is maintained when changing the mass load. The effective area of the triple-piston assembly is not affected by the line pressure, which simplifies operation of the instrument by minimizing the computations needed for accurate results and therefore reduces uncertainty in output pressure.

About GE Sensing
GE Sensing is a leading innovator in advanced measurement and sensor-based technology solutions. GE Sensing designs and produces precision instruments and systems that measure temperature, pressure, liquid level, humidity, gas concentration, and flow rate for the most demanding customer applications. GE Sensing serves customers around the world in the aerospace, healthcare, transportation, process and industrial businesses.

Druck, General Eastern, Kaye, NovaSensor, Panametrics, Telaire, Thermometrics and Ruska are now part of one team, under one name: GE Sensing.

SOURCE: GE Sensing