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Deadweight Tester CPB5000 Ranges 0.03 bar to 1000 (1200) bar 2.9 to 15000 psi

Deadweight Tester CPB5000 Pressure Balance Primary Standard for Pressure Datasheet Operating Manual

• Ranges from 0.03 bar to 100 bar:
  pneumatic operated
  0.435 psi to 1500 psi
• Ranges from 02. to 400 bar, with integr. separator
  test item applied with air, piston with oil
• Ranges from 0.2 bar to 1000 (1200) bar:
  hydraulic operated
  2.9 psi to 15000 psi
• Accuracy (total uncertainty of measurement) up to ±0.008% of measured value
• A basement can be fitted with individual measuring systems (piston/cylinder-units). Fast and safe replacement of the measuring systems (no tools needed)
• Self-sustaining complete system, also suitable for on-site measurements / calibrations
• Options: DKD Certificate of Calibration, Intelligent Calibration Module IKM for easy Transmitter calibration and automatic calculated corrections

Deadweight Tester (Pressure Balances) are the most accurate instruments for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of pressure, according to its definition as a quotient of force and area, and the use of high-quality materials result in small uncertainties of measurement and an excellent long-term stability of five years. For these reasons, deadweight testers have already been used in calibration laboratories of industry, national institutes and research labs for many years. Due to the integrated pressure generation and the purely mechanical measurement principle, the CPB5000 deadweight testers are ideally suited for on-site use as well as service and maintenance purposes.

The new concept for a customised CPB5000 assembly enables you to set up a compact complete system at a favourable price, consisting of an universal basement and the measuring systems (piston/cylinder-units). The high-quality sensitive piston/cylinder-units are well protected in a special housing. Fast and uncomplicated changes of the measuring range are possible using a flat spanner, optional without having to use any tools.

The core of the CPB5000 is a piston/cylinder system of tungsten carbide. Besides this high-quality material, which primarily stands out for its small temperature coefficient, the workmanship of the system is a measure of the final accuracy of the pressure balance. Several refinement processes ensure a high-quality and even surface with small graps of only a few micrometer.

In order to generate the individual test points, the piston/cylinder system is weighted with mass-loads, which are also calibrated and specially adapted to the respective application. Depending on the measuring range of your device under test you can fit the instrument basement with the corresponding piston/cylinder system. The pressure is set via an integrated pump or, if an external pressure supply is available, via control valves (pneumatic models). For fine adjustment an adjustable volume with precision spindle is available. The weight applied is proportional to the desired pressure and provided by using optimally graduated weights. As soon as the measuring system reaches quilibrium, there is a balance of forces between pressure and wheel weights. Due to the excellent quality of the system this pressure remains stable over several minutes, so that for instance adjustments of your device under test can be carried out without any problems.

Intelligent Calibration Module IKM Datasheet Operating Manual Especially when highly accurate measuring values with uncertainties of measurement of less than 0.025% are required, complicated mathematics calculations and corrections used to be necessary.

With this optional addition to the system all critical ambient parameters are registered and automatically corrected. Furthermore, a calibrator function for pressure transmitters is integrated, so that a voltage can be supplied to the sensor and the sensors signals can be measured without any problem.

More optional Accessories Set of trim-masses for generating intermediate values (weights 2 mg to 100 g) Oxytester (Purifier) for measuring instruments where the filling medium should not come into contact with the deadweight tester Dirt trap for test objects that are very dirty in order to avoid the penetration of dirt particles into the deadweight tester Set of adapters in a tool case with 5 most commonly used threaded adapters and a spanner (flats 32 and flats 14) Cleaning Kit "CPB5000-PN-RS" for pneumatic pistons Cleaning Kit "CPB5000-HY-RS" for hydraulic pistons

Set of Adapters   Oxytester & Dirt trap

Included in Standard Supply

• Basement with robust protective cover
• Inlet pressure pump and spindle pump
• Clamp for specimens
• One piston/cylinder system
• Set of stainless steel weights in carrying case

Technical Data:

Accuracy (uncertainty):
±0.015% of measured value (%RD). The accuracy is charachterised by the deviation span, which is the sum of the systematic error and the uncertainties of measurement. Longterm stability is not taken into account. Please note that corrections might be required if the instrument is used without the optional Intelligent Calibration Module - see operating manual.
As an option, systems with increased accuracies up to 0.008% of reading are available

Recommended accessory: Hand Suction Pump HAP 02 Datasheet for suction of fluids, e.g. oil, water, break fluid, etc. Perfect for the suction of the operation fluid of deadweight tester (e.g. before transport etc.).

Other Deadweight Tester models:

• CPB5000-HP:
  High Pressure Deadweight tester, up to 4000 bar / 60000 psi
    
• CPB5000-DP:
  Differential Pressure Deadweight Tester
    
• LDW 1000:
  Deadweight Tester "Low Cost", Accuracy ±0.025%