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EHDT-Serie - Hydraulic Deadweight Tester

Article-No.: EHDT-Serie

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• Primary standards with measuring ranges from 0.1 bar to 10,000 bar
• Ring weights and weight bell for a low center of gravity
• Two-stage spindle for little effort
• Overhead, transparent oil container for better monitoring
• Quick connections, no tools required
• Accuracy: 0.02% to 0.005% of reading
• Medium: Oil / Sebacate, Skydrol and other oils (depends on model)

Modell EHDT
Without motorization and without terminal for pressure calculation

Modell EHDT- M
With motorization, but without terminal for pressure calculation

Modell EHDT- MLC
With motorization, including terminal for pressure calculation

Hydraulic pressure balances are primary standards (piston pressure gauges) and are used to calibrate pressure gauges, pressure transmitters, pressure switches and secondary standards. The weighted piston-cylinder unit with cross-section "A" is subjected to pressure "p" by a spindle pump until an exact equilibrium with the applied ring weights "m" is achieved. The high-precision generated reference pressure p = (m x g) / A is transferred to the test item for calibration. The value "g" corresponds to the acceleration due to gravity. The hydraulic pressure compensator can be upgraded with an integrated double piston-cylinder unit in order to achieve an optimal pressure step in the low and high pressure range.

They consist of a pressure generator, a piston-cylinder unit and a set of weights. The capstan is used to generate pressure by pressing liquid through the piston. The pressure is compensated by the piston-cylinder unit, which compares the pressure values of the test instrument with the pressure generated by the standard. The pressure display is intended for pressure calibration.

The deadweight tester is robust, easy to operate and has a long-term stability.


Technical Data EHDT-Serie - Hydraulic Deadweight Tester *:

Unit Value

* subject to change without prior notice and errors excepted

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download EHDT-Hydraulic-Deadweight-Tester.pdf.pdf  [348 kB] EHDT Hydraulic Deadweight Tester
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EHDT-Hydraulic-Deadweight-Tester.pdf
download EHDT-Hydraulic-Deadweight-Tester.pdf.pdf  [348 kB] EHDT Hydraulic Deadweight Tester
348 kB
EHDT-Hydraulic-Deadweight-Tester.pdf