CPB3800HP Dead-Weight Tester

Applications

  • Primary standard for calibrating the pressure scale in a hydraulic range up to 2,600 bar (40,000 lb/in²)
  • Reference instrument for factory and calibration laboratories for the testing, adjustment and calibration of pressure measuring instruments
  • Complete, stand-alone system, also suitable for on-site use

Special features

  • Total measurement uncertainty up to 0.01 % of reading
  • Dual-range piston-cylinder system 2,600 bar (40,000 lb/in²) with fully automated changing between ranges
  • Factory calibration includes traceability to national standards, as standard, with UKAS calibration possible as an option
  • Masses manufactured from stainless steel, can be adjusted to local gravity

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Description

Proven primary standard

Pressure balances (dead-weight testers) are the most accurate instruments available on the market. They are used for the calibration of electronic or mechanical pressure measuring instruments.

Features

  • Direct measurement of the pressure (p = F/A)
  • Use of high-quality materials
  • Very small measurement uncertainty
  • Excellent long-term stability
  • Used for years in factory and calibration laboratories in industry, national institutes, and research laboratories

Stand-alone operation

Due to its integrated pressure generation and the purely mechanical measuring principle, the model CPB3800HP is ideal for on-site use for maintenance and service.

Basic principle

Pressure is defined as the quotient of force and area. The core component of the CPB3800HP is therefore a very precisely manufactured piston-cylinder system, onto which a mass load is applied in order to generate the individual test points.

The mass load is proportional to the target pressure and this is achieved through optimally graduated masses. As standard, these masses are manufactured to the standard gravity (9.80665 m/s²), though they can be adjusted to a specific location and also UKAS calibrated.