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Summary

This video tutorial introduces the Budenberg hydraulic dead weight tester, highlighting its role in accurately calibrating pressure gauges across a wide range of pressures, from 0.01 bar to over 2,600 bars. Key features include a dual-range piston cylinder unit that simplifies low and high-pressure testing, ensuring efficiency and precision. The setup process involves leveling the unit, filling the reservoir, and properly adjusting valves to achieve desired pressure readings. Renowned for their reliability and robustness, Budenberg testers also offer extensive technical support and accessories, making them a preferred choice in the field of pressure calibration.

Takeaways

• 🔧 Hydraulic dead weight testers are used to calibrate the accuracy of pressure gauges and transducers, accommodating a wide range of pressures from 0.01 bar to over 2,600 bars.
• 🛠️ Key components include mass set weights, valves for pressure control, a reservoir for the liquid, a gauge to be tested, and a piston cylinder unit for accuracy.
• 💧 The setup involves ensuring the piston cylinder unit is level, filling the reservoir with mineral oil, and removing trapped air from the system.
• ⚙️ Calibration is done by adjusting the screw press to generate pressure and monitor gauge readings for accuracy.
• 🔄 For pressures up to 140 bar (2,000 PSI), valve A remains open while valve B is closed during calibration.
• ⬆️ For higher pressures, switch valve settings and follow similar calibration steps to ensure accurate pressure generation.
• 📏 The dual range piston cylinder unit allows for testing both low and high pressures with a single device, enhancing efficiency.
• 💡 Pressure is calculated using the formula: Pressure = Force / Area, where area is the cross-sectional area of the pistons.
• ✅ Berenberg dead weight testers are recognized for their accuracy, reliability, and longevity, making them a preferred choice in calibration.
• 🌍 World-class technical support and a range of accessories are available to enhance the functionality and efficiency of dead weight testers.

Q & A

What is the primary purpose of dead weight testers?

Dead weight testers are mainly used to test the accuracy of pressure gauges and pressure transducers.

What are the pressure ranges that can be tested using pneumatic and hydraulic dead weight testers?

Pneumatic dead weight testers can calibrate pressures as low as 0.01 bar, while hydraulic dead weight testers can handle pressures over 2,600 bars.

What are the main components of a Budenberg hydraulic dead weight tester?

The main components include mass set weights, valves to control pressure, a reservoir to contain liquid, a gauge for testing, a piston cylinder unit, a floating action screw press, and leveling feet.

How is the piston cylinder unit leveled in a dead weight tester?

The piston cylinder unit is leveled using a spirit level, adjusting the four corner feet until it is even.

What is the procedure for filling the reservoir with mineral oil?

To fill the reservoir, remove the filler plug, ensure valves A and B are open, rotate the screw press clockwise to fill it with the appropriate mineral oil, then rotate the screw press fully anticlockwise to draw the oil into the system.

What should be done to calibrate a pressure gauge for pressures up to 140 bar?

Close valve B and leave valve A open. Rotate the screw press clockwise to generate pressure until the handle becomes stiff, indicating the pressure limit has been reached.

What distinguishes the dual range piston cylinder unit from single units?

The dual range piston cylinder unit allows calibration for both low and high pressure using a single unit, saving time and costs compared to using separate units for each pressure range.

What is the formula used to define pressure in a dead weight tester?

Pressure is defined as pressure equals force over an area, where the area is the cross-sectional area of the pistons involved.

What advantages do Budenberg dead weight testers offer?

Budenberg testers provide calibration accuracy based on actual readings, reliability, robustness, and longevity, along with world-class technical support and a wide range of cost-effective accessories.

Where can one find more information on Budenberg dead weight testers?

More information can be found by visiting the Budenberg official website.