The europascal BH4-3000B Automatic Deadweight Tester is a high-performance hydraulic pressure standard designed for precise and efficient calibration at high pressures. With a measuring range from 40 to 3,000 bar and an accuracy of 0.02 %, the BH4-3000B combines the proven physical measurement principle of a piston gauge with the advanced automation functions of the BH4 series.
The maximum pressure of 3,000 bar, equivalent to 300 MPa, makes the BH4-3000B particularly suitable for professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance, research laboratories and other applications requiring reliable generation of very high hydraulic pressures.
Unlike a conventional manually operated deadweight tester, the BH4 platform combines the physical pressure standard with electronic and automated functions. These include motorized operation, dynamic piston position visualization, automatic pressure calculation, operator assistance, recording of calibration results and computer data transfer.
The BH4-3000B operates hydraulically with oil and uses a single precision piston-cylinder system. Calibrated stainless steel masses generate a defined force on the piston. The resulting reference pressure is calculated from the force, effective piston area and relevant physical correction quantities.
europascal provides professional support for pressure calibration equipment, including system selection, configuration, maintenance and calibration. The europascal calibration service provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, high-pressure sensors, pressure transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH4-3000B Automatic Deadweight Tester combines high-pressure capability with advanced automatic calibration functions.
Key benefits include:
- Automatic hydraulic deadweight tester
- Measuring range from 40 to 3,000 bar
- Maximum pressure of 3,000 bar / 300 MPa
- Measuring range from 600 to 44,000 psi
- Accuracy of 0.02 %
- Single-piston configuration
- Physical piston gauge measurement principle
- Hydraulic operation with oil
- Stainless steel calibration masses
- Integrated motorized operation
- Dynamic piston position visualization
- Automatic calculation of generated pressure
- Automatic pressure display
- Different pressure units with the same weight set
- Operator assistance during calibration
- Recording of calibration results
- Computer data transfer
- Designed for professional high-pressure calibration
- Professional calibration and service from europascal
High Pressure Range from 40 to 3,000 bar
The europascal BH4-3000B covers a hydraulic measuring range from:
40 to 3,000 bar
This corresponds to:
4,000 to 300,000 kPa
4 to 300 MPa
and according to the manufacturer’s range specification:
600 to 44,000 psi
The maximum pressure is therefore:
3,000 bar / 300 MPa
This broad high-pressure range makes the BH4-3000B suitable for calibrating a wide selection of hydraulic pressure measuring instruments using one high-performance reference standard.
Accuracy of 0.02 %
The europascal BH4-3000B provides an accuracy of:
0.02 %
This makes the instrument suitable for demanding high-pressure calibration applications.
The complete measurement uncertainty of an actual calibration additionally depends on the relevant uncertainty contributions of the pressure balance and measurement setup.
Important influence quantities can include:
- Calibration of the mass set
- Effective piston area
- Pressure coefficient of the piston-cylinder system
- Local gravitational acceleration
- Air buoyancy
- Piston-cylinder temperature
- Pressure deformation
- Hydraulic fluid properties
- Hydrostatic head difference
- Repeatability
- Resolution of the device under test
- Environmental conditions
At pressures reaching 3,000 bar, pressure-dependent deformation of the piston-cylinder assembly becomes particularly relevant and must be considered according to the applicable calibration model.
Fundamental Piston Gauge Measurement Principle
The europascal BH4-3000B Automatic Deadweight Tester operates according to the fundamental physical piston gauge principle.
The basic relationship is:
p = F / A
where:
p = generated pressure
F = force acting on the piston
A = effective piston area
The gravitational force generated by the calibrated masses is primarily determined by:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified pressure relationship is therefore:
p = (m × g) / A
For high-accuracy calibration, additional corrections can be considered for local gravity, air buoyancy, piston-cylinder temperature, pressure deformation and hydrostatic head.
The BH4-3000B combines this proven physical pressure generation principle with electronic calculation and operator assistance.
Single-Piston High-Pressure System
The europascal BH4-3000B uses a single precision piston-cylinder system.
This means that the complete specified measuring range from 40 to 3,000 bar is generated using:
one piston
The single-piston concept provides straightforward operation without requiring the operator to switch between different low-pressure and high-pressure piston systems.
For a high-pressure deadweight tester, accurate characterization of the effective piston area and its behavior under pressure is particularly important.
These characteristics form part of the metrological basis for calculating the generated reference pressure.
Automatic Pressure Calculation
One of the main advantages of the europascal BH4-3000B is the automatic calculation functionality of the BH4 platform.
The system assists the operator with:
- Calculation of generated pressure
- Automatic pressure display
- Consideration of relevant parameters
- Different pressure units
- Reduced manual calculation
- Consistent calibration procedures
A conventional manual deadweight tester requires the operator to determine the generated reference pressure from the calibrated masses, effective piston area and applicable correction factors.
The BH4 concept significantly simplifies this process by integrating the calculation functionality directly into the pressure balance.
Dynamic Piston Position Visualization
Correct piston position is essential for reliable deadweight tester operation.
The BH4 platform therefore provides:
dynamic piston position visualization
The operator can monitor the piston position during calibration and determine whether the piston is operating within its correct working range.
This improves operator convenience and helps establish repeatable calibration procedures.
The visualization is particularly useful during calibration sequences involving many pressure points.
Integrated Motorized Operation
The europascal BH4-3000B incorporates motorized operation of the piston and mass system.
Rotation helps minimize friction effects between piston and cylinder and supports free movement of the precision piston.
With a conventional pressure balance, rotation may need to be initiated and maintained manually.
The automatic BH4 platform reduces this manual intervention through integrated motorization.
This is particularly advantageous for laboratories performing frequent or repetitive high-pressure calibrations.
Operator Assistance During Calibration
The automatic BH4 concept is designed to assist the operator throughout the calibration procedure.
The combination of:
motorization
dynamic piston position visualization
automatic pressure calculation
automatic pressure display
different measurement units
result recording
and:
computer data transfer
reduces the number of manual steps required during calibration.
The physical pressure is still generated according to the fundamental piston gauge principle, while the integrated system simplifies operation, calculation and documentation.
Recording of Calibration Results
The europascal BH4-3000B supports recording of calibration results.
This functionality is particularly useful for professional calibration laboratories performing repetitive measurements.
Recorded information can support:
- Calibration documentation
- Measurement traceability
- Quality assurance
- Evaluation of the device under test
- Calibration history
- Digital laboratory workflows
This can reduce manual documentation work and help improve consistency in calibration processes.
Computer Data Transfer
Calibration results can be transferred to a computer.
Computer data transfer enables the BH4-3000B to be integrated into modern digital calibration workflows.
This can reduce the need to manually copy measurement values and therefore minimize potential transcription errors.
For laboratories calibrating large numbers of high-pressure instruments, digital data handling can provide significant workflow advantages.
Different Pressure Units with the Same Weight Set
The integrated calculation functionality allows different pressure units to be used with the same physical weight set.
Depending on the configuration, pressure can be displayed in units such as:
- bar
- kPa
- MPa
- psi
- kg/cm²
This provides flexibility for calibration laboratories working with devices from different industries and countries.
The operator can therefore work in the pressure unit required by the device under test or calibration procedure without requiring a completely separate mass set for every unit.
Stainless Steel Calibration Masses
The BH4 series uses:
stainless steel calibration masses
These calibrated masses generate the gravitational force acting on the precision piston.
Their calibration and long-term stability are important components of the pressure measurement system.
The generated reference pressure depends on the calibrated mass values, gravitational acceleration, effective piston area and relevant correction factors.
Standard Gravity and Local Gravity
Gravitational acceleration directly influences the force generated by the calibration masses.
The conventional standard value is:
g = 9.80665 m/s²
However, actual gravitational acceleration varies according to geographical location.
For high-accuracy pressure calibration, the appropriate local gravity value can therefore be relevant.
Because the gravitational force is calculated from mass and gravitational acceleration, a relative change in gravity directly influences the generated reference pressure.
Hydraulic Operation with Oil
The europascal BH4-3000B is a hydraulic deadweight tester.
The pressure medium is:
oil
Hydraulic operation is particularly suitable for generating pressures extending into several thousand bar.
Correct filling and venting of the hydraulic system are important because trapped gas can affect pressure generation and settling behavior.
Compatibility between the pressure medium and the device under test should also be checked before calibration.
All pressure fittings, tubing, adapters and devices connected to the system must be suitable for the maximum intended pressure.
Technical Highlights
Model: europascal BH4-3000B
Device type: Automatic Hydraulic Deadweight Tester
Product family: BH4 Automatic
Configuration: Single piston
Number of pistons: 1
Measuring range: 40 to 3,000 bar
Measuring range: 4 to 300 MPa
Measuring range: 600 to 44,000 psi
Maximum pressure: 3,000 bar / 300 MPa
Accuracy: 0.02 %
Measurement principle: Piston gauge / deadweight tester
Pressure medium: Oil
Calibration masses: Stainless steel
Motorization: Integrated
Piston position visualization: Dynamic
Pressure calculation: Automatic
Different pressure units: Supported
Result recording: Integrated
Computer data transfer: Available
Technical Data
| Feature | europascal BH4-3000B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH4-3000B |
| Device type | Automatic Hydraulic Deadweight Tester |
| Product family | BH4 Automatic |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 40–3,000 bar |
| Measuring range | 4–300 MPa |
| Measuring range | 600–44,000 psi |
| Maximum pressure | 3,000 bar / 300 MPa |
| Accuracy | 0.02 % |
| Measurement principle | Piston gauge |
| Pressure medium | Oil |
| Calibration masses | Stainless steel |
| Motorized operation | Integrated |
| Piston position visualization | Dynamic |
| Automatic pressure calculation | Integrated |
| Different pressure units | Supported |
| Result recording | Integrated |
| Computer data transfer | Available |
BH4-3000B vs. BH2-3000B
The europascal Aremeca product portfolio includes both the:
BH4-3000B
and:
BH2-3000B
Both instruments cover the same basic high-pressure range, but their operating concepts differ.
The BH2-3000B belongs to the high-performance conventional pressure balance family.
The BH4-3000B adds the automatic functionality of the BH4 platform.
| Feature | BH4-3000B | BH2-3000B |
|---|---|---|
| Measuring range | 40–3,000 bar | 40–3,000 bar |
| Maximum pressure | 3,000 bar | 3,000 bar |
| Accuracy | 0.02 % | 0.02 % |
| Configuration | Single piston | Single piston |
| Standard operation | Automatic | Manual |
| Motorized operation | Integrated | Optional |
| Piston position visualization | Integrated | Optional |
| Automatic pressure calculation | Integrated | Optional |
| Computer data functions | Integrated | Optional |
The BH4-3000B is particularly suitable for laboratories where automation, operator assistance and digital data handling are important.
The BH2-3000B is an alternative for applications where a more conventional manually operated high-performance deadweight tester is preferred.
BH4 High-Pressure Series
The europascal Aremeca BH4 series provides several automatic hydraulic pressure balances for demanding high-pressure calibration.
| Model | Measuring Range | Accuracy |
|---|---|---|
| BH4-2000B | 40–2,000 bar | 0.02 % |
| BH4-2500B | 40–2,500 bar | 0.02 % |
| BH4-3000B | 40–3,000 bar | 0.02 % |
| BH4-4000B | 40–4,000 bar | 0.02 % |
| BH4-5000B | 40–5,000 bar | 0.02 % |
| BH4-6000B | 200–6,000 bar | 0.05 % |
| BH4-7000B | 200–7,000 bar | 0.05 % |
The BH4-3000B therefore provides a strong combination of pressure range and metrological performance for laboratories requiring automatic pressure calibration up to 3,000 bar.
For higher maximum pressures, the BH4-4000B and BH4-5000B retain the 0.02 % accuracy class, while the BH4-6000B and BH4-7000B extend the range further.
Calibration and Traceability
Regular calibration of a high-pressure deadweight tester is important for maintaining reliable metrological performance.
Relevant components and parameters include:
- Piston-cylinder assembly
- Calibration mass set
- Effective piston area
- Pressure coefficient
- Temperature behavior
- Relevant environmental quantities
- Calculation parameters
At pressures extending to 3,000 bar, accurate characterization of the pressure-dependent behavior of the piston-cylinder assembly is particularly important.
The europascal calibration service provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, pressure sensors, pressure transmitters and other pressure measuring equipment.
europascal can also provide support with system configuration, maintenance and selection of suitable high-pressure calibration equipment.
Why Choose the europascal BH4-3000B?
The europascal BH4-3000B Precise Automatic Deadweight Tester combines a measuring range from 40 to 3,000 bar with an accuracy of 0.02 % and the advanced automatic functionality of the BH4 platform.
The instrument retains the physical measurement principle of a precision piston gauge while adding motorized operation, dynamic piston position visualization, automatic pressure calculation, operator assistance, result recording and computer data transfer.
This combination reduces operator workload and simplifies repetitive calibration procedures while maintaining the advantages of a physical pressure standard.
For professional laboratories that regularly calibrate high-pressure sensors, transducers, gauges and other pressure instruments up to 3,000 bar, the BH4-3000B provides a powerful combination of high-pressure capability, metrological performance and modern calibration automation.
Typical Calibration Applications with the europascal BH4-3000B
The europascal BH4-3000B is particularly suitable for calibrating high-pressure sensors, pressure transducers, pressure transmitters, precision pressure gauges, digital high-pressure gauges, reference pressure instruments and specialized hydraulic measurement systems.
Typical application areas include professional calibration laboratories, pressure instrument manufacturing, high-pressure component manufacturing, industrial quality assurance, mechanical engineering, research and development and high-pressure test laboratories.
Looking for the europascal BH4-3000B or an automatic hydraulic pressure calibration solution up to 3,000 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
