Automated Primary Standards

Automated Primary Standards - APX50 Absolute Automatic Balance

Absolute Automatic pressure balance is very well suited for the calibration of absolute Dead-Weight Testers., Digital Pressure Gauges, Barometers and any accurate Sensor or Transmitters such as Quartz Sensors. This standard is now the new world wide absolute pressure reference.

Specification

• Primary standard
• Pure gas range from 10kPa up to 2MPa
• Highest level achievable uncertainty of measurement ≤ 7ppm of reading, with k=2, from LNE
• Absolute or gauge pressure high accuracy measurement
• Fully automatic mass loading, including small masses down to 0.1g
• Alternative to high accuracy mercury columns
• Sensitivity ≤ 1ppm
• Stability ≤ 1ppm/year
• Smallest mass down to 1g
• Repeatability ≤ 1ppm from 100kPa
• Medium: Clean, dry gas

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Automated Primary Standards - 50 000-ll Automatic Pressure Balance

Fully automatic pressure balance, which incorporates automatic pressure generation up to 500MPa and automatic mass-loading down to 0.1g. The 50 000-II also incorporates the latest pressure generation technology derived from the GPSIII controller, giving an automated primary pressure standard, capable of operating at high speeds required in modern production facilities.

Specification

• Primary standard
• Gas range from 150kPa up to 100MPa
• Oil range from 150kPa up to 500MPa
• High level achievable uncertainty of measurement ≤ 30 ppm of reading with k=2.
• Absolute or gauge pressure measurement.
• Fully Automatic mass loading, including small masses down to 0.1 g.
• Indefinite spin and float times.
• Integral Piston temperature monitoring.
• Integral Piston Position monitoring.
• Piston can be changed in seconds.

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Automated Primary Standards - 60 000-ll Automatic Pressure Balance

A simplified version of the 50 000-II, the 60 000-ll series pressure balances provides the user with all of the automated functionality of it's "big brother", but with a minimum mass handling down to 1kg. The 60 000-II also incorporates the latest pressure generation technology derived from the GPSIII controller, giving an automated primary pressure standard, capable of operating at high speeds required in modern production facilities.

Specification

• Primary standard
• Gas range from 150kPa up to 100MPa
• Oil range from 150kPa up to 500MPa
• Measurement Uncertainties to <30ppm of reading with k=2.
• Fully automated mass loading of 100kg mass set down to 1kg
• Pressure sequence control can be local or remote
• Indefinite spin and float times
• Integral Piston temperature monitoring.
• Integral Piston Position monitoring.
• Piston can be changed in seconds

Download Data Sheet