Dead Weight Pressure Gauge Calibrator

Dead Weight Pressure Gauge Calibrator

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

FEATURES:
A bench top unit comprising a simple Dead weight Pressure Calibrator with weights
Pressure sensors, manometers or Bourdon gauges other than those supplied can be calibrated over the range 20 kNm-2 to 200 kNm-2
Bourdon gauge with inlet and outlet valves
Set of weights
The direct measurement of pressure (p=F/A)
Masses added are proportional to the target pressure
Calibration of pressure gauges by deadweight method to accuracy better than 0.025% of reading
Dual pistons enable calibration over a wide range of pressures
Precision machined piston and cylinder with leveling screws
Educational software available as an option
 
SPECIFICATION:
Portable, self-contained deadweight precision pressure gauge calibrator
Calibration gauges with 1-1,200 bar range to ±0.025% of reading
Includes carrying case and weights
Minimum standard weight increment is 0.05 bars.