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The Model 2482 is a high precision standard that provides unsurpassed performance in the field of differential pressure metrology at high static line pressures. Designed to calibrate virtually any differential pressure sensing device, the 2482 combines exceptional accuracy along with speed and ease of use. Featuring a triple-axis piston assembly this primary standard provides both pneumatic and hydraulic differential pressure calibrations to 850 inH20 (2100 mbar) at line pressures up to 2900 psi (200 bar).
A precision load cell supports the differential piston assembly and serves to quickly and accurately zero the standard at elevated line pressures. Until now, this has been a time consuming and technique dependent process. Supplied with Windows based menu driven software to control the piston gauge and provide the full range of corrections and calculations, the 2482 is the ideal standard for calibrating transmitters used in applications such as turbine efficiency testing and custody transfer measurements.
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The model 2485 Hydraulic Piston Gauge is a high precision standard that provides unsurpassed performance in the field of hydraulic piston pressure gauge metrology. This instrument can be used to calibrate virtually any pressure device including other industrial or portable piston gauges, transducers, transmitters, gauges, or pressure switches. Available in either of two standard media configurations, the Model 2485 can also be used in multiple media systems to facilitate calibrations of a wide variety of instrumentation in use today.
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The Model 7250LP Low Pressure Digital Pressure Calibrator, part of the versatile Series 7250 family, is specifically designed to meet the demanding performance requirements of calibrating low pressure sensors, transducers, mechanical gauges, portable calibrators and their plug-in modules. To accommodate bi-directional devices, the 7250LP can be supplied to operate in both positive and negative gauge modes. Available in three different range combinations with two ranges in a single instrument: • 10 inH2O and 30 inH2O(25 and 75mbar) • 20 inH2O and 60 inH2O(50 and 150mbar) • 35inH2O and 100 inH2O(87 and 250mbar) The 7250LP provides a precision of 0.005% of reading from 10% to 100% of the maximum range. For example, the 10/30 inH2O 7250LP provides a precision of 0.005% of reading when measuring pressure from 30 to 3in H2O (75 to 7.5mbar). Changing ranges is automatic both upscale and downscale and does not require operator intervention. Since the 7250LP utilizes a true differential sensor, the reference port can be connected to the test system eliminating unwanted pressure disturbances due to room drafts caused by HVAC systems.
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