europascal BH4-5000B is an automatic hydraulic deadweight tester for precise generation and measurement of high pressures from 40 to 5,000 bar. Designed for demanding high-pressure calibration applications, the system combines the proven physical measurement principle of a piston gauge with modern electronic operator assistance, automatic pressure calculation and motorized weight rotation.

With an accuracy of 0.02 % of reading, optionally available down to 0.008 % of reading, the europascal BH4-5000B is particularly suitable for calibration laboratories, quality assurance, research and development and industrial applications requiring reliable, reproducible and traceable high-pressure generation.

The hydraulic deadweight tester uses oil as the pressure medium and incorporates a high-quality single piston-cylinder assembly manufactured from tungsten carbide. The integrated electronic system assists the operator throughout the calibration procedure. Functions include dynamic visualization of the piston position, real-time calculation and display of the pressure generated by the applied masses, different pressure units, measurement recording and transfer of results to a computer.

The fundamental measurement principle makes the europascal BH4-5000B an excellent reference system for high-pressure calibration. Reference pressure is determined from accurately known physical quantities including mass, local gravitational acceleration and the effective area of the piston-cylinder assembly.

At europascal, we provide complete solutions for professional pressure calibration. In addition to high-pressure deadweight testers, we can assist you with suitable adapters, accessories and customized calibration solutions.

For regular calibration and metrological traceability of your pressure standards and measuring equipment, use the europascal Calibration Service.

Your Benefits at a Glance

• Automatic hydraulic deadweight tester
• Pressure range from 40 to 5,000 bar
• Standard accuracy of 0.02 % of reading
• Enhanced accuracy down to 0.008 % of reading available on request
• Single piston-cylinder assembly
• Hydraulic operation with oil
• Piston made from tungsten carbide
• Cylinder made from tungsten carbide
• Integrated electronic calculator
• Dynamic visualization of piston position
• Real-time calculation of generated pressure
• Automatic display of generated pressure
• Multiple pressure units with the same weight set
• Operator assistance during calibration
• Motorized weight rotation
• Recording of calibration results
• Transfer of results to a computer
• Stainless steel weight sets
• Configuration for standard or local gravity
• Suitable for high-pressure calibration
• Designed for professional calibration laboratories
• Suitable for industrial pressure metrology
• Ideal as a high-pressure reference standard

Ideal for Demanding Calibration Applications

The europascal BH4-5000B was developed for applications where very high hydraulic pressures must be generated precisely and used as reference values for calibration and testing.

The physical operating principle of a deadweight tester provides an important metrological advantage. Reference pressure is generated from accurately characterized physical quantities instead of relying exclusively on an electronic pressure sensor.

This makes deadweight testers important reference standards in professional pressure metrology.

Typical applications for the europascal BH4-5000B include:

• Calibration laboratories
• DAkkS-accredited calibration laboratories
• Factory calibration laboratories
• Quality assurance
• Research and development
• Production testing
• Mechanical engineering
• Plant engineering
• Hydraulic systems
• Energy industry
• Process industry
• Service and maintenance
• Pressure instrument manufacturing
• High-pressure technology

The system can be used to calibrate suitable high-pressure measuring instruments such as mechanical pressure gauges, digital pressure gauges, pressure sensors, pressure transmitters and other hydraulic pressure instruments.

Pressure Calibration from 40 to 5,000 bar

The europascal BH4-5000B provides a measuring range from:

40 to 5,000 bar

This corresponds to approximately:

600 to 72,500 psi

The wide high-pressure range makes the BH4-5000B particularly suitable for applications that exceed the capabilities of conventional pneumatic pressure calibration systems.

It provides a mechanical reference for calibration points throughout demanding hydraulic pressure ranges and is therefore suitable for laboratories that regularly work with high-pressure measuring equipment.

Accuracy of 0.02 % of Reading

The standard accuracy of the europascal BH4-5000B is:

0.02 % of reading

For applications with higher metrological requirements, an enhanced configuration with an accuracy down to:

0.008 % of reading

is available on request.

The percentage-of-reading specification is advantageous across the wide pressure range because the accuracy is related to the actual generated pressure rather than only to the full-scale pressure.

The appropriate configuration should be selected according to the required measurement uncertainty and the specifications of the devices under test.

Proven Deadweight Tester Principle

The operating principle of the europascal BH4-5000B is based on the fundamental pressure relationship:

p = F / A

where:

p = generated pressure
F = force acting on the piston
A = effective piston area

Calibrated masses generate a defined gravitational force.

This force acts on the effective area of the piston-cylinder assembly. The hydraulic system is pressurized until the piston reaches its correct operating position.

At equilibrium, the pressure generated by the system can be calculated from the applied force and the effective piston area while taking the relevant correction quantities into account.

This principle provides excellent long-term stability and makes piston gauges particularly valuable as pressure reference standards.

Tungsten Carbide Piston-Cylinder Assembly

The piston-cylinder assembly is the metrological core of the europascal BH4-5000B.

Both the piston and cylinder are manufactured from:

Tungsten carbide

This material provides excellent mechanical properties for high-pressure metrology.

The BH4-5000B uses a single piston-cylinder assembly optimized for high-pressure operation up to 5,000 bar.

The robust design supports reliable long-term operation in professional calibration environments.

Hydraulic Operation with Oil

The europascal BH4-5000B operates hydraulically using oil as the pressure medium.

Hydraulic operation is particularly suitable for generating very high pressures because liquids have much lower compressibility than gases.

The pressure medium transfers the generated pressure between the pressure generator, piston-cylinder assembly and connected device under test.

Correct handling of the hydraulic system is important for reliable measurements. The system should be properly filled, contamination should be avoided and trapped air should be minimized.

Integrated Electronic Calculator

A major advantage of the BH4 series is the integrated electronic calculator.

The europascal BH4-5000B therefore combines the traditional physical reference principle of a deadweight tester with electronic assistance.

The system provides:

• Dynamic piston-position visualization
• Real-time pressure calculation
• Automatic pressure display
• Multiple pressure units
• Operator assistance
• Measurement recording
• Control report support
• Transfer of results to a computer

This reduces the amount of manual calculation required during routine calibration and makes the pressure balance easier to operate.

Dynamic Piston Position Visualization

Correct piston position is essential for reliable deadweight tester operation.

The integrated electronics of the europascal BH4-5000B provide dynamic visualization of the piston position.

This helps the operator recognize whether the piston is within the appropriate operating range.

Instead of relying exclusively on manual observation, the electronic assistance provides additional information during the calibration process.

This is especially useful for repetitive laboratory calibration procedures.

Automatic Pressure Calculation

The pressure generated by a precision deadweight tester depends on more than the nominal values marked on the masses.

For demanding measurements, relevant influence quantities must be considered.

The integrated calculator of the europascal BH4-5000B supports real-time calculation of the pressure generated by the deadweight tester.

The calculated pressure can be displayed directly to the operator, simplifying calibration procedures and reducing manual calculation effort.

Multiple Pressure Units

The integrated calculator also allows different pressure units to be displayed using the same set of weights.

This is particularly useful for calibration laboratories working with devices that use different pressure units.

Depending on the application, pressure values can therefore be evaluated in the required engineering unit without changing the fundamental physical reference.

Weight sets can also be configured according to the required pressure unit.

Motorized Weight Rotation

The europascal BH4-5000B features motorized operation of the weight system.

The weight set is driven by an electric motor.

Rotation is important during deadweight tester operation because it helps reduce friction effects between the piston and cylinder.

The motorized system therefore reduces manual intervention and supports repeatable operating conditions during calibration.

This is one of the features that distinguishes the BH4 series from more manually operated pressure balances.

Recording and Data Transfer

Modern calibration laboratories require more than precise pressure generation.

Measurement results also need to be documented and processed efficiently.

The europascal BH4-5000B supports the recording of calibration results and their transfer to a computer.

This can simplify documentation and integration into established laboratory workflows.

The combination of a mechanical pressure reference with electronic data handling provides significant advantages for repetitive calibration applications.

Local Gravity Compensation

The pressure generated by a deadweight tester depends on the gravitational force acting on its masses.

Consequently, local gravitational acceleration influences the actual generated pressure.

The europascal BH4-5000B can be configured according to the local gravity at its installation location.

The internationally defined standard gravitational acceleration is:

9.80665 m/s²

For high-accuracy calibration, however, the actual local value can be considered.

This is particularly important when the pressure balance is used as a reference standard in a professional calibration laboratory.

Stainless Steel Weight Sets

The europascal BH4-5000B uses high-quality stainless steel masses.

The weight set can be configured according to the required pressure range and pressure unit.

Stainless steel provides good durability and dimensional stability for long-term laboratory use.

Correct handling and periodic calibration of the mass set are essential for maintaining the metrological performance of the complete pressure balance.

Calibration of Pressure Gauges

One of the most common applications of the europascal BH4-5000B is the calibration of high-pressure gauges.

The device under test is connected to the hydraulic system and subjected to defined reference pressures.

The indication of the pressure gauge is compared with the pressure generated by the deadweight tester.

Depending on the calibration procedure, several increasing and decreasing pressure points can be generated.

This allows the user to evaluate characteristics such as:

• Indication deviation
• Repeatability
• Hysteresis
• Zero behavior

The wide pressure range up to 5,000 bar makes the system particularly suitable for specialized high-pressure gauges.

Calibration of Pressure Sensors and Transmitters

The BH4-5000B can also provide the hydraulic reference pressure for calibration of pressure sensors and pressure transmitters.

The pressure balance generates the reference pressure while suitable electrical measurement equipment records the output signal of the device under test.

Typical output signals can include:

• 4–20 mA
• Voltage
• Digital signals

This allows the complete pressure measurement chain to be evaluated at several defined pressure points.

Flexible Expandability

The europascal BH4-5000B can be adapted to different requirements within a calibration laboratory.

Important configuration factors include:

• Required pressure range
• Required accuracy
• Pressure units
• Local gravitational acceleration
• Device-under-test connections
• Hydraulic adapters
• Calibration requirements
• Data handling requirements

Suitable accessories and connection components allow the system to be adapted to different devices under test and laboratory environments.

europascal can assist users in configuring the complete high-pressure calibration system according to their individual requirements.

Technical Highlights

The europascal BH4-5000B combines high-pressure capability with modern electronic operator assistance:

• Automatic hydraulic deadweight tester
• Pressure range from 40 to 5,000 bar
• Approximately 600 to 72,500 psi
• Standard accuracy 0.02 % of reading
• Enhanced accuracy down to 0.008 % of reading on request
• Single piston-cylinder assembly
• Tungsten carbide piston
• Tungsten carbide cylinder
• Oil as pressure medium
• Integrated electronic calculator
• Dynamic piston-position visualization
• Automatic pressure calculation and display
• Multiple pressure units
• Operator assistance during calibration
• Motorized weight rotation
• Recording of calibration results
• Computer data transfer
• Stainless steel weight sets
• Local gravity configuration available
• Designed for professional high-pressure calibration

Technical Specifications

Why Choose the europascal BH4-5000B?

The europascal BH4-5000B combines the established physical measurement principle of a hydraulic deadweight tester with modern electronic operator assistance.

Its pressure range from 40 to 5,000 bar makes it particularly suitable for high-pressure applications that extend far beyond conventional pneumatic calibration systems.

A standard accuracy of 0.02 % of reading, with enhanced accuracy down to 0.008 % of reading available on request, provides the metrological performance required for demanding pressure calibration.

The integrated calculator simplifies practical operation by dynamically displaying piston position and calculating the pressure generated by the applied masses in real time.

Motorized weight rotation further reduces manual intervention and supports reproducible operating conditions.

Recording and computer transfer of calibration results help integrate the pressure balance into modern laboratory workflows.

The tungsten carbide piston-cylinder assembly provides the robust mechanical foundation required for high-pressure operation, while stainless steel masses and configurable gravity compensation support long-term use as a professional pressure reference.

The europascal BH4-5000B is therefore an excellent solution for calibration laboratories, quality assurance departments, pressure instrument manufacturers and industrial users requiring precise and traceable pressure generation up to 5,000 bar.

At europascal, we can assist you in selecting the appropriate configuration, accuracy class, mass set, pressure units, adapters and accessories for your individual high-pressure calibration application.

For professional calibration and metrological traceability of deadweight testers, pressure gauges, pressure sensors and pressure transmitters, use the europascal Calibration Service.

Additional calibration and measurement solutions are available through the europascal English website.

Discover more europascal Aremeca products here.

Manufacturer information about the europascal BH4-5000B is available on the official Aremeca Instrumentation website.

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