High Pressure Deadweight Tester CPB5000-HP
Total uncertainty of measurement down to 0.02 % of reading
Factory calibration certificate as standard, traceable to National Standards, DKD/DAkks calibration certificate available as an option
High long-term stability with a recommended recalibration cycle of 5 years
Masses manufactured from stainless steel and aluminium, local gravity adjustment possible at no additional charg
Proven primary standard
Pressure balances are the most accurate instruments for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of pressure, (P = F/A) and the use of high-quality materials, result in small measurement uncertainties and an excellent long-term stability of five years (Recommendation in accordance with the German Calibration Service DKD/DAkkS). For these reasons pressure balances have already been used in the calibration laboratories of industry, national institutes and research laboratories for many years.
Self-contained operation
Due to the integrated pressure generation and the purely mechanical measuring principle, High Pressure Deadweight Tester CPB5000-HP is ideally suited to on-site use as well as service and maintenance purposes
Basic principle
Pressure is defined as the quotient of force and area. Correspondingly, the core of High Pressure Deadweight Tester CPB5000-HP is a very precisely manufactured piston cylinder system, which is loaded with masses in order to generate the individual test points. The weight applied is proportional to the desired pressure and accomplished by using optimally graduated weights. These weights are manufactured to standard gravity (9.80665 m/s²) although, for fixed location usage, they can be adjusted to a customer-specified local gravity.
Primary standard for defining the pressure scale in a range up to 5,000 bar Reference instrument for testing, adjusting and calibrating pressure measuring instruments in factories and calibration laboratories Self-contained, complete system also suitable for on-site measurements/calibration