The europascal BH4-600B Automatic Deadweight Tester is a high-performance hydraulic pressure standard designed for precise and efficient pressure calibration from 2 to 600 bar. With an accuracy of 0.01 %, the BH4-600B combines the proven physical measurement principle of a piston gauge with the advanced automatic functionality of the BH4 series.
The instrument is designed as a single-piston hydraulic deadweight tester, also designated BH4-600B SP. Its pressure range extends from 2 to 600 bar, corresponding to 0.2 to 60 MPa. This makes the BH4-600B suitable for calibrating precision pressure gauges, digital pressure gauges, pressure sensors, transmitters and other hydraulic pressure measuring instruments.
Unlike a conventional manually operated deadweight tester, the BH4 platform integrates motorized operation, dynamic piston position visualization, automatic pressure calculation and display, calibration result recording and computer data transfer. These functions reduce manual intervention and simplify repetitive calibration procedures.
europascal provides professional support for pressure calibration equipment, including product selection, system configuration, maintenance and calibration. The europascal calibration service provides professional solutions for pressure balances, deadweight testers, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH4-600B Automatic Deadweight Tester combines high accuracy, a broad hydraulic pressure range and automatic operation.
Key benefits include:
- Automatic hydraulic deadweight tester
- Measuring range from 2 to 600 bar
- Maximum pressure of 600 bar / 60 MPa
- Accuracy of 0.01 %
- Single-piston configuration
- Physical piston gauge measurement principle
- Hydraulic operation with oil
- Precision calibration masses
- Integrated motorized operation
- Dynamic piston position visualization
- Automatic pressure calculation
- Automatic pressure display
- Different pressure units
- Calibration result recording
- Computer data transfer
- Reduced operator workload
- Designed for professional calibration laboratories
Measuring Range from 2 to 600 bar
The europascal BH4-600B covers a hydraulic pressure range from:
2 to 600 bar
This corresponds to:
200 to 60,000 kPa
or:
0.2 to 60 MPa
The maximum pressure is therefore:
600 bar / 60 MPa
This broad range allows many different hydraulic pressure instruments to be calibrated with one reference standard.
The single-piston design means that the complete specified range is covered using one piston-cylinder system.
Accuracy of 0.01 %
The europascal BH4-600B provides a specified accuracy of:
0.01 %
This performance makes the instrument suitable for demanding pressure calibration applications where a stable and traceable reference pressure is required.
The complete measurement uncertainty of a calibration additionally depends on the individual uncertainty contributions of the pressure balance and measurement setup.
Relevant influence quantities can include:
- Calibration of the mass set
- Effective piston area
- Pressure coefficient
- 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
These quantities should be evaluated according to the applicable calibration procedure and measurement uncertainty model.
Piston Gauge Measurement Principle
The europascal BH4-600B Automatic Deadweight Tester operates according to the fundamental physical principle of a piston gauge.
The basic relationship is:
p = F / A
where:
p = generated pressure
F = force acting on the piston
A = effective piston area
The force produced by the calibration masses is primarily determined by:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified pressure equation is therefore:
p = (m × g) / A
For high-accuracy calibration, further corrections can be applied for quantities such as local gravity, air buoyancy, temperature, pressure deformation and hydrostatic head.
The BH4-600B combines this physical pressure generation principle with electronic calculation and automatic operator assistance.
Single-Piston Configuration
The europascal BH4-600B is designed as a:
single-piston pressure balance
The single-piston configuration uses one precision piston-cylinder system to cover the complete measuring range from 2 to 600 bar.
This provides straightforward operation without requiring the operator to change between separate low-pressure and high-pressure piston systems.
The effective area of the piston-cylinder system is a fundamental metrological parameter because it directly influences the generated reference pressure.
Automatic BH4 Platform
The BH4 platform combines the physical traceability of a piston gauge with modern automatic functions.
These functions include:
- Motorized operation
- Dynamic piston position visualization
- Automatic pressure calculation
- Automatic pressure display
- Different pressure units
- Calibration data recording
- Computer data transfer
The pressure itself continues to be generated physically by calibrated masses acting on the piston.
The automatic system primarily assists the operator with operation, monitoring, calculation and documentation.
Motorized Operation
Rotation of the piston helps minimize friction effects between the piston and cylinder and supports free movement of the piston.
With a conventional deadweight tester, this rotation may need to be initiated manually.
The europascal BH4-600B integrates motorized operation, reducing manual intervention during calibration.
This is particularly beneficial when many pressure points or devices are calibrated regularly.
Dynamic Piston Position Visualization
Correct piston position is essential for reliable operation of a pressure balance.
The BH4 platform therefore provides:
dynamic piston position visualization
This allows the operator to monitor the position of the piston during calibration.
The visualization assists with determining when the piston is operating in the correct working position and helps simplify repetitive calibration procedures.
Automatic Pressure Calculation and Display
The BH4 system assists with calculation of the generated reference pressure.
Instead of manually calculating each pressure point from the mass load and piston data, the integrated system can determine and display the corresponding reference pressure.
Relevant parameters can include:
- Applied mass
- Effective piston area
- Selected pressure unit
- Gravitational acceleration
- Environmental parameters
- Relevant correction quantities
This reduces calculation effort and helps provide consistent calibration procedures.
Different Pressure Units
The integrated calculation functionality allows the reference pressure to be displayed in different units.
Depending on the configuration, relevant units can include:
- bar
- kPa
- MPa
- psi
- kg/cm²
This is useful for laboratories working with pressure instruments from different manufacturers, industries and countries.
Calibration Result Recording
The europascal BH4-600B supports recording of calibration results.
Electronic recording can simplify:
- Calibration documentation
- Measurement traceability
- Quality assurance
- Evaluation of the device under test
- Calibration history
- Digital laboratory workflows
It can also reduce errors associated with manual transcription of measurement values.
Computer Data Transfer
Calibration information can be transferred to a computer.
This enables the BH4-600B to be integrated into digital calibration workflows and simplifies subsequent evaluation and documentation.
For laboratories processing many instruments or measurement points, computer data transfer can provide a significant efficiency advantage over a purely mechanical pressure balance.
Hydraulic Operation with Oil
The europascal BH4-600B is a hydraulic pressure balance operating with:
oil
Hydraulic pressure transmission is well suited to generating stable pressures across the 2 to 600 bar measuring range.
Correct filling and venting of the system are important because trapped gas can influence pressure generation and settling behavior.
Compatibility between the hydraulic medium, device under test and wetted components should always be verified before calibration.
Standard Gravity and Local Gravity
The force generated by calibration masses 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 an appropriate customer-specific gravity value.
Technical Highlights
Model: europascal BH4-600B
Manufacturer reference: BH4-600B SP
Device type: Automatic Hydraulic Deadweight Tester
Product family: BH4 Automatic
Configuration: Single piston
Number of pistons: 1
Measuring range: 2 to 600 bar
Measuring range: 0.2 to 60 MPa
Maximum pressure: 600 bar / 60 MPa
Accuracy: 0.01 %
Measurement principle: Piston gauge / deadweight tester
Pressure medium: Oil
Motorization: Integrated
Piston position visualization: Dynamic
Pressure calculation: Automatic
Pressure display: Automatic
Result recording: Integrated
Computer data transfer: Available
Technical Data
| Feature | europascal BH4-600B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH4-600B |
| Manufacturer reference | BH4-600B SP |
| Device type | Automatic Hydraulic Deadweight Tester |
| Product family | BH4 Automatic |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 2–600 bar |
| Measuring range | 0.2–60 MPa |
| Maximum pressure | 600 bar / 60 MPa |
| Accuracy | 0.01 % |
| Measurement principle | Piston gauge |
| Pressure medium | Oil |
| Motorized operation | Integrated |
| Piston position visualization | Dynamic |
| Automatic pressure calculation | Integrated |
| Automatic pressure display | Integrated |
| Result recording | Integrated |
| Computer data transfer | Available |
BH4-600B SP vs. BH4-600B DP
The BH4-600B is also available as a dual-piston configuration.
The BH4-600B SP uses one piston-cylinder system, while the BH4-600B DP uses two optimized piston-cylinder systems.
| Feature | BH4-600B SP | BH4-600B DP |
|---|---|---|
| Piston configuration | Single piston | Dual piston |
| Number of pistons | 1 | 2 |
| Overall range | 2–600 bar | 1–600 bar |
| Low-pressure range | – | 1–60 bar |
| High-pressure range | 2–600 bar | 10–600 bar |
| Accuracy | 0.01 % | 0.01 % |
| Operation | Automatic | Automatic |
| Pressure medium | Oil | Oil |
The BH4-600B SP provides the simpler single-piston solution when a minimum pressure of 2 bar is sufficient.
The BH4-600B DP is advantageous when calibration down to 1 bar is required or when optimized piston systems for the lower and upper parts of the pressure range are preferred.
Position within the BH4 Series
The BH4 automatic hydraulic pressure balance family provides different measuring ranges for professional calibration applications.
| Model | Measuring Range | Accuracy |
|---|---|---|
| BH4-300B SP | 1–300 bar | 0.01 % |
| BH4-400B SP | 2–400 bar | 0.01 % |
| BH4-600B SP | 2–600 bar | 0.01 % |
| BH4-700B SP | 2–700 bar | 0.01 % |
| BH4-1200B SP | 2–1,200 bar | 0.01 % |
| BH4-2000B | 40–2,000 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 BH4-600B therefore provides an attractive combination of 600 bar maximum pressure and 0.01 % accuracy.
Typical Calibration Applications
The europascal BH4-600B Automatic Deadweight Tester is particularly suitable for calibration of:
- Precision pressure gauges
- Digital pressure gauges
- Pressure sensors
- Pressure transducers
- Pressure transmitters
- Hydraulic pressure indicators
- Reference pressure instruments
- Industrial hydraulic measurement systems
- Pressure calibration equipment
Typical users include professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance departments, research laboratories and calibration service organizations.
Calibration and Traceability
Regular calibration of a pressure balance is essential for maintaining reliable metrological performance.
Important components and parameters include:
- Piston-cylinder assembly
- Calibration mass set
- Effective piston area
- Pressure coefficient
- Temperature behavior
- Gravity value
- Relevant correction quantities
The europascal calibration service provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, sensors, transmitters and other pressure measuring equipment.
europascal can also provide support with system configuration, maintenance and selection of suitable pressure calibration equipment.
Why Choose the europascal BH4-600B?
The europascal BH4-600B Precise Automatic Deadweight Tester combines a hydraulic pressure range from 2 to 600 bar with an accuracy of 0.01 % and the advanced automatic functionality of the BH4 platform.
The instrument retains the fundamental physical measurement principle of a precision piston gauge while adding motorized operation, dynamic piston position visualization, automatic pressure calculation and display, calibration 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 hydraulic pressure sensors, transmitters, transducers and pressure gauges up to 600 bar, the BH4-600B provides an excellent combination of accuracy, pressure range and automation.
Looking for the europascal BH4-600B or an automatic hydraulic pressure calibration solution up to 600 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
