Astra Scientific Precision Pressure Gauge Calibrator - Astra Scientific
Astra Scientific Precision Pressure Gauge Calibrator
ASTRA SCIENTIFIC Product Name: Astra Scientific Precision Pressure Gauge Calibrator
ASTRA SCIENTIFIC Product Code: Fluid Mechanics Lab0032

Description and Specification for Lab Tenders

Astra Scientific Precision Pressure Gauge Calibrator.

DESCRIPTION:

The designed equipment is self-contained and portable, so it may be used in lecture theatre demonstrations or as a master calibrator for the laboratory.

Deadweight testers are the basic primary standard used worldwide for the accurate calibration of pressure gauges, pressure transducers etc. The instrument combines a low and high-pressure range provided by two pistons of different effective area.

Calibration is accurate to within ±0.025% of reading. A laboratory calibration certificate is supplied for each piston together with a traceable certificate of overall accuracy.

The pressure in the system is produced by means of a capstan-operated hydraulic ram, balanced by dead weight acting upon a piston of known area. Oil is used as the hydraulic fluid.

The pressure developed is applied to the gauge that is to be calibrated.

A spirit level and adjustable feet are provided to enable the operator to level the instrument. A flotation indicator mounted on the top plate removes the guesswork when floating the piston.

The instrument is supplied complete with necessary weights and a fitted carrying case. ⅛”, ¼”, ⅜”, ½” BSP and NPT female adaptors are included together with spare seals and a quantity of oil.

 

FEATURES:

  • The direct measurement of pressure (p=F/A)
  • Masses added are proportional to the target pressure
  • Calibration of pressure gauges by deadweight method to an accuracy better than 0.025% of reading
  • Dual pistons enable calibration over a wide range of pressures

SPECIFICATIONS:

  • Portable, self-contained deadweight precision pressure gauge calibrator
  • Calibration gauges with 1-1,200 bar range to ±0.025% of reading
  • Supplied complete with laboratory calibration certificate
  • Includes carrying case and weights
  • Minimum standard weight increment is 0.05 bar

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