The europascal BH4-60B Automatic Deadweight Tester is a high-performance hydraulic pressure standard designed for precise and efficient pressure calibration up to 60 bar. As part of the automatic BH4 series, it combines the proven physical measurement principle of a piston gauge with motorized operation, dynamic piston position visualization, automatic pressure calculation and digital calibration functions.
The BH4-60B is designed for the lower hydraulic pressure range and is particularly suitable for calibration laboratories that require high-quality pressure generation for pressure gauges, sensors, transducers and transmitters.
Unlike a conventional manually operated deadweight tester, the BH4 platform assists the operator during pressure generation and measurement. Motorized mass rotation supports free piston movement, while the integrated system monitors piston position and calculates the generated reference pressure.
The result is a pressure standard that combines the physical traceability of calibrated masses and a precision piston-cylinder system with the convenience of modern automated calibration equipment.
europascal provides professional support for pressure calibration equipment, system configuration, maintenance and calibration. The europascal calibration service provides professional solutions for deadweight testers, pressure balances, pressure gauges, pressure sensors, pressure transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH4-60B Automatic Deadweight Tester combines precision pressure generation with automatic operation.
Key benefits include:
- Automatic hydraulic deadweight tester
- Pressure range up to 60 bar
- Precision piston-cylinder measurement principle
- Physical pressure generation using calibrated masses
- Hydraulic operation with oil
- Automatic BH4 platform
- Motorized mass rotation
- Dynamic piston position visualization
- Automatic pressure calculation
- Automatic pressure display
- Different pressure units
- Environmental measurement support
- Recording of calibration results
- Computer data transfer
- Reduced operator workload
- Suitable for professional calibration laboratories
Hydraulic Pressure Calibration up to 60 bar
The europascal BH4-60B is designed specifically for precision calibration in the lower hydraulic pressure range.
Its maximum pressure is:
60 bar
This corresponds to:
6 MPa
or:
6,000 kPa
A pressure balance optimized for this range is particularly useful when calibration points at relatively low hydraulic pressures must be generated accurately and reproducibly.
Typical devices under test include pressure gauges, digital pressure gauges, sensors, transmitters and reference pressure instruments.
Physical Piston Gauge Measurement Principle
The europascal BH4-60B Automatic Deadweight Tester operates according to the proven physical principle of a piston gauge.
The fundamental relationship is:
p = F / A
where:
p = generated pressure
F = force acting on the piston
A = effective piston area
The force generated by the calibration 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
This direct relationship between mass, gravity and effective piston area is the basis of deadweight tester pressure generation.
For high-accuracy calibration, additional influence quantities and correction factors must be considered.
Measurement Uncertainty Contributions
The complete measurement uncertainty of a calibration does not depend on the pressure balance alone.
Relevant influence quantities can include:
- Calibration uncertainty of the mass set
- Effective piston area
- Pressure coefficient
- Local gravitational acceleration
- Air buoyancy
- Piston-cylinder temperature
- Hydraulic fluid properties
- Hydrostatic head difference
- Repeatability
- Sensitivity
- Stability of the generated pressure
- Resolution of the device under test
- Environmental conditions
The uncertainty budget should be evaluated according to the calibration procedure and the required calibration capability.
Optimized for Lower Hydraulic Pressures
One of the main advantages of the europascal BH4-60B is its specialization in the lower hydraulic pressure range.
A piston-cylinder system optimized for lower pressures allows useful pressure increments to be generated without requiring extremely small calibration masses.
This makes the BH4-60B particularly attractive for laboratories where a substantial proportion of hydraulic pressure calibrations are performed below 60 bar.
Automatic BH4 Platform
The BH4 series combines a physical pressure standard with automatic operator assistance.
The automatic platform provides functions such as:
- Motorized operation
- Dynamic piston position visualization
- Automatic pressure calculation
- Automatic pressure display
- Different pressure units
- Recording of calibration results
- Computer data transfer
The reference pressure itself continues to be generated physically by calibrated masses acting on the precision piston.
Automation primarily simplifies operation, monitoring, calculation and documentation.
Motorized Mass Rotation
Free rotation of the piston helps reduce friction effects between the piston and cylinder.
The BH4 platform provides:
motorized mass rotation
This eliminates the need for continuous manual rotation of the mass system.
The function is particularly useful during repetitive calibration sequences with many measurement points.
It reduces operator workload while supporting consistent operating conditions.
Dynamic Piston Position Visualization
Correct piston position is an important requirement for reliable deadweight tester operation.
The BH4 system therefore provides:
dynamic piston position visualization
The operator can monitor the piston during pressure generation and determine whether it is operating within the appropriate working position.
This simplifies balancing of the pressure system and provides greater convenience compared with a purely manual deadweight tester.
Automatic Pressure Calculation
The BH4 platform assists with calculation of the generated reference pressure.
Relevant parameters can include:
- Applied calibration masses
- Effective piston area
- Gravitational acceleration
- Temperature
- Atmospheric pressure
- Relevant correction quantities
The generated reference pressure can then be displayed directly to the operator.
This reduces manual calculation effort and supports consistent calibration procedures.
Different Pressure Units
The automatic calculation system allows pressure values to be displayed in different engineering units.
Depending on the instrument configuration, these can include:
- bar
- kPa
- MPa
- psi
- kg/cm²
This provides flexibility for calibration laboratories working with instruments from different manufacturers, industries and countries.
Environmental Measurement
Environmental conditions can influence high-accuracy pressure measurements.
The BH4 platform can use environmental information as part of its pressure calculation and calibration workflow.
Relevant quantities include:
- Temperature
- Atmospheric pressure
- Relative humidity
This is particularly important when corrections for mass buoyancy and piston-cylinder temperature are included in the calculation of the reference pressure.
Calibration Result Recording
The europascal BH4-60B supports digital recording of calibration results.
This can simplify:
- Calibration documentation
- Measurement traceability
- Quality assurance
- Calibration history
- Evaluation of the device under test
- Digital laboratory workflows
Electronic data handling also reduces the risk of transcription errors associated with manually recording measurement values.
Computer Data Transfer
Calibration information can be transferred to a computer for further processing.
This allows the BH4-60B to be integrated into modern digital calibration workflows.
For laboratories processing many devices or measurement points, computer data transfer can significantly reduce manual documentation work.
Hydraulic Operation with Oil
The europascal BH4-60B is a hydraulic pressure balance operating with:
oil
Hydraulic operation provides efficient pressure transmission between the pressure generator, piston-cylinder system and device under test.
Correct filling and venting of the hydraulic system are important.
Trapped gas can affect pressure stability and settling behavior, while contamination can influence precision hydraulic components.
The compatibility of the hydraulic medium with the connected device under test should always be checked before calibration.
Calibration Masses
Calibrated masses generate the precisely defined force acting on the piston.
The mass set is therefore an essential component of the physical pressure standard.
Together with the effective piston area and gravitational acceleration, the calibrated mass values determine the generated reference pressure.
The masses can be configured according to the required pressure unit and gravity value.
Standard and Local Gravity
The force generated by a calibration mass depends directly on gravitational acceleration.
The conventional standard value is:
g = 9.80665 m/s²
Actual gravitational acceleration varies according to geographical location.
For precision pressure calibration, an appropriate local gravity value can therefore be relevant.
The pressure balance can be configured according to standard gravity or a specified customer-specific gravity value.
Leveling of the Pressure Balance
Correct leveling is important for precision piston gauge operation.
The pressure balance should be installed on a stable work surface and accurately leveled before use.
This ensures that the piston-cylinder assembly operates under the intended mechanical conditions and helps minimize unwanted lateral forces on the piston.
Technical Highlights
Model: europascal BH4-60B
Device type: Automatic Hydraulic Deadweight Tester
Product family: BH4 Automatic
Maximum pressure: 60 bar
Maximum pressure: 6 MPa
Measurement principle: Piston gauge / deadweight tester
Pressure medium: Oil
Pressure generation: Calibrated masses and precision piston-cylinder system
Motorized operation: Integrated
Piston position visualization: Dynamic
Automatic pressure calculation: Integrated
Automatic pressure display: Integrated
Different pressure units: Available
Calibration result recording: Integrated
Computer data transfer: Available
Standard gravity: 9.80665 m/s²
Local gravity configuration: Available
Technical Data
| Feature | europascal BH4-60B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH4-60B |
| Device type | Automatic Hydraulic Deadweight Tester |
| Product family | BH4 Automatic |
| Maximum pressure | 60 bar |
| Maximum pressure | 6 MPa |
| Maximum pressure | 6,000 kPa |
| Measurement principle | Piston gauge / deadweight tester |
| Pressure medium | Oil |
| Pressure generation | Calibrated masses |
| Motorized operation | Integrated |
| Piston position visualization | Dynamic |
| Automatic pressure calculation | Integrated |
| Automatic pressure display | Integrated |
| Result recording | Integrated |
| Computer data transfer | Available |
| Standard gravity | 9.80665 m/s² |
| Local gravity | Available |
Why a Dedicated 60 bar Pressure Balance?
Using a pressure balance optimized for the required pressure range provides important practical advantages.
A piston-cylinder assembly intended for lower pressures can provide suitable mass increments and sensitivity without requiring a high-pressure piston optimized for several hundred or thousand bar.
The europascal BH4-60B is therefore particularly attractive for laboratories that regularly calibrate instruments with ranges such as:
- 1 bar
- 2.5 bar
- 4 bar
- 6 bar
- 10 bar
- 16 bar
- 25 bar
- 40 bar
- 60 bar
This makes the instrument suitable for many common industrial pressure measuring devices.
BH4 Automatic Platform vs. Conventional Manual Deadweight Tester
A traditional deadweight tester requires significant manual interaction during calibration.
The operator typically needs to rotate the piston, monitor its floating position, calculate the generated pressure and manually record calibration results.
The BH4 platform reduces these tasks through automatic functions.
| Function | Conventional Manual Tester | BH4-60B |
|---|---|---|
| Physical piston gauge principle | Yes | Yes |
| Calibrated masses | Yes | Yes |
| Manual piston rotation | Typically | Motorized |
| Piston position monitoring | Manual | Dynamic visualization |
| Pressure calculation | Manual/external | Automatic |
| Pressure display | External calculation | Integrated |
| Result recording | Usually manual | Digital support |
| PC data transfer | Usually external | Available |
The BH4-60B therefore retains the physical reference principle of a pressure balance while providing a more efficient calibration workflow.
Typical Calibration Applications
The europascal BH4-60B Automatic Deadweight Tester is suitable for testing, adjustment and calibration of mechanical and electronic pressure measuring instruments.
Typical devices under test include:
- Precision pressure gauges
- Digital pressure gauges
- Pressure sensors
- Pressure transducers
- Pressure transmitters
- Pressure switches
- Hydraulic pressure indicators
- Reference pressure instruments
- Industrial pressure measurement systems
Typical users include:
- Accredited calibration laboratories
- Industrial calibration laboratories
- Pressure instrument manufacturers
- Quality assurance departments
- Research laboratories
- Maintenance departments
- Calibration service organizations
Calibration and Traceability
Regular calibration of a pressure balance is important for maintaining reliable metrological performance.
Important components and parameters include:
- Piston-cylinder assembly
- Effective piston area
- Calibration mass set
- Pressure coefficient
- Temperature behavior
- Gravity value
- Repeatability
- Relevant correction quantities
The europascal calibration service provides professional calibration solutions for pressure balances, deadweight testers, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.
europascal can also provide support with maintenance, system configuration and selection of suitable pressure calibration equipment.
Why Choose the europascal BH4-60B?
The europascal BH4-60B Precise Automatic Deadweight Tester combines the proven physical measurement principle of a piston gauge with the automatic functionality of the BH4 platform.
Its specialization for hydraulic pressures up to 60 bar makes it particularly suitable for laboratories that regularly calibrate low- and medium-range pressure instruments.
Motorized operation, dynamic piston position visualization, automatic pressure calculation, digital result recording and computer data transfer reduce operator workload and simplify repetitive calibration procedures.
The physical reference pressure continues to be generated by calibrated masses acting on a precision piston-cylinder system, maintaining the fundamental advantages of a deadweight tester while providing a modern calibration workflow.
Looking for the europascal BH4-60B or an automatic hydraulic pressure calibration solution up to 60 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
