The europascal BH2-7000B High Pressure Deadweight Tester is a precision hydraulic pressure standard designed for demanding calibration applications from 200 to 7,000 bar. With a standard accuracy of 0.05 % of reading and enhanced performance of up to 0.02 % on request, the BH2-7000B provides reliable physical pressure generation for professional high-pressure calibration laboratories.
The instrument uses a single precision piston-cylinder system to cover the complete measuring range from 200 to 7,000 bar. According to the manufacturer, this corresponds to 20,000 to 700,000 kPa and 2,000 to 100,000 psi.
Both the piston and cylinder are manufactured from tungsten carbide, providing the mechanical strength, wear resistance and dimensional stability required for pressure generation up to 700 MPa.
The BH2-7000B operates hydraulically with oil and generates the reference pressure using calibrated masses acting on the precision piston-cylinder assembly. Unlike the automatic BH4 series, the BH2 platform is designed as a robust high-performance deadweight tester that can be expanded with optional motorization, piston position visualization and automatic pressure calculation.
The instrument is particularly suitable for calibration laboratories, pressure instrument manufacturers, research facilities and industrial quality assurance departments requiring traceable high-pressure calibration.
The europascal calibration service provides professional calibration solutions for pressure balances, deadweight testers, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH2-7000B High Pressure Deadweight Tester provides:
- Hydraulic high-pressure deadweight tester
- Measuring range from 200 to 7,000 bar
- Measuring range from 20,000 to 700,000 kPa
- Manufacturer range from 2,000 to 100,000 psi
- Maximum pressure of 7,000 bar / 700 MPa
- Standard accuracy of 0.05 % of reading
- Enhanced accuracy up to 0.02 % on request
- Single-piston configuration
- One precision piston-cylinder system
- Tungsten carbide piston
- Tungsten carbide cylinder
- Hydraulic operation with oil
- Stainless steel calibration masses
- Standard or local gravity configuration
- Optional motorized mass rotation
- Optional piston position visualization
- Optional automatic pressure calculation
- Optional computer data transfer
- Robust design for professional high-pressure calibration
Measuring Range from 200 to 7,000 bar
The europascal BH2-7000B covers a hydraulic pressure range from:
200 to 7,000 bar
The manufacturer specifies:
20,000 to 700,000 kPa
and:
2,000 to 100,000 psi
The maximum pressure is:
7,000 bar / 700 MPa
This makes the BH2-7000B one of the highest-pressure models within the BH2 series.
Its pressure range is designed for demanding applications where conventional hydraulic calibration equipment no longer provides sufficient maximum pressure.
Accuracy of 0.05 % of Reading
The standard accuracy of the europascal BH2-7000B is:
0.05 % of reading
For applications with more demanding metrological requirements, AREMECA specifies enhanced performance:
up to 0.02 % on request
This distinction is important when configuring the instrument for a specific calibration requirement.
The actual measurement uncertainty of a calibration additionally depends on the calibration certificate, operating conditions, device under test and individual uncertainty contributions of the complete measurement setup.
Physical Piston Gauge Measurement Principle
The europascal BH2-7000B High Pressure Deadweight Tester operates according to the physical measurement 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 gravitational force produced by the calibration masses is primarily determined by:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified relationship is therefore:
p = (m × g) / A
This provides a direct physical relationship between mass, gravity, effective piston area and generated pressure.
For precision high-pressure calibration, the complete calculation can include additional correction quantities.
Measurement Uncertainty at High Pressure
At pressures up to 7,000 bar, the simple relationship p = F/A is only the fundamental starting point for a detailed uncertainty analysis.
Relevant influence quantities can include:
- Calibration uncertainty of the masses
- Effective piston area
- Pressure coefficient of the piston-cylinder assembly
- Elastic deformation under pressure
- Piston-cylinder temperature
- Local gravitational acceleration
- Air buoyancy acting on the masses
- Hydraulic fluid properties
- Hydrostatic head difference
- Repeatability
- Sensitivity
- Pressure stability
- Resolution of the device under test
- Environmental conditions
The effective piston area and its behavior under pressure are particularly important when working at several hundred megapascals.
The final measurement uncertainty should therefore always be determined from the actual calibration data and calibration procedure.
Single-Piston Configuration
The europascal BH2-7000B is designed as a:
single-piston deadweight tester
The instrument incorporates:
1 piston
and:
1 precision piston-cylinder system
This piston-cylinder assembly covers the complete specified measuring range from 200 to 7,000 bar.
The single-piston concept provides a straightforward system architecture without requiring the operator to change between different piston-cylinder assemblies within the specified range.
Tungsten Carbide Piston and Cylinder
One of the most important technical characteristics of the BH2-7000B is the material of its piston-cylinder assembly.
The manufacturer specifies:
Piston: tungsten carbide
Cylinder: tungsten carbide
Tungsten carbide combines very high hardness with excellent wear resistance and dimensional stability.
These properties are particularly valuable in an ultra-high-pressure piston-cylinder assembly where the components must withstand extremely high mechanical loading while maintaining precisely defined geometry.
The effective piston area is a critical metrological parameter because it directly influences the generated reference pressure.
Hydraulic Operation with Oil
The europascal BH2-7000B operates hydraulically with:
oil
A hydraulic system is particularly suitable for very high pressures because liquids have significantly lower compressibility than gases.
Correct filling, cleanliness and venting of the hydraulic circuit are essential for reliable operation.
At pressures up to 7,000 bar, all components of the pressure system must be suitable for the maximum operating pressure.
This includes:
- Pressure tubing
- High-pressure fittings
- Adapters
- Valves
- Seals
- Device under test
- Associated pressure-generating equipment
Calibrated Masses as the Physical Reference
The force acting on the precision piston is generated using calibrated masses.
Together with the effective piston area and gravitational acceleration, these masses form the physical basis of the generated reference pressure.
The BH2 series uses stainless steel masses with ergonomic geometry designed for convenient loading.
Mass sets can be configured for different pressure units according to the calibration requirements.
Standard or Local Gravity
The force produced by a calibration mass depends directly on gravitational acceleration.
The standard reference value is:
g = 9.80665 m/s²
However, actual gravitational acceleration varies according to geographical location.
The europascal BH2-7000B can therefore be configured for:
standard gravity
or:
local gravity
Using the appropriate gravity value is important because a relative change in gravitational acceleration directly affects the force produced by the calibration masses and therefore the generated reference pressure.
Operating Temperature
AREMECA specifies an operating temperature range of:
18 to 28 °C
The manufacturer’s reference calibration conditions include:
Temperature: 20 °C
Standard gravity: 9.80665 m/s²
Environmental conditions should be considered when evaluating the generated pressure and associated measurement uncertainty.
Temperature is particularly important because it can influence the effective area of the piston-cylinder assembly.
Instrument Weight
The standard BH2-7000B weighs approximately:
22 kg without calibration masses
When equipped with option OP0004 or OP0301, the manufacturer specifies approximately:
24 kg without calibration masses
This relatively compact instrument platform provides a physical pressure standard capable of generating pressures up to 700 MPa.
Optional OP0004 Motorization
The standard BH2 platform can be expanded with:
Option OP0004
This option provides:
- Motorized rotation of the masses
- Piston position visualization using indicator lights
Rotation of the piston helps reduce friction effects between the piston and cylinder.
Motorized rotation reduces operator workload during repetitive calibration procedures.
The piston position indication additionally assists the operator in maintaining the piston within its appropriate working position.
Optional OP0301 Calculator Module
For more advanced calibration workflows, the BH2-7000B can be equipped with:
Option OP0301
This option adds functions such as:
- Motorization
- Dynamic piston position visualization
- Environmental sensors
- Calculator module
- Automatic pressure calculation
- Automatic pressure display
- Calibration data traceability
- Computer data transfer
The option allows the manually oriented BH2 platform to be expanded with many functions useful for digital calibration workflows.
BH2 Platform – Scalable High-Performance Design
A major advantage of the BH2 series is its scalable configuration.
The standard instrument provides a robust high-performance pressure balance based on the physical piston gauge principle.
Additional automation can then be selected according to the requirements of the calibration laboratory.
This allows users to choose between:
- Traditional high-performance deadweight tester operation
- Motorized operation
- Piston position assistance
- Automatic pressure calculation
- Digital data transfer
The instrument can therefore be adapted to both conventional and more automated calibration workflows.
Technical Highlights
Model: europascal BH2-7000B
Device type: High Pressure Hydraulic Deadweight Tester
Configuration: Single piston
Number of pistons: 1
Measuring range: 200 to 7,000 bar
Measuring range: 20,000 to 700,000 kPa
Manufacturer imperial range: 2,000 to 100,000 psi
Maximum pressure: 7,000 bar / 700 MPa
Standard accuracy: 0.05 % of reading
Enhanced accuracy: Up to 0.02 % on request
Piston material: Tungsten carbide
Cylinder material: Tungsten carbide
Pressure medium: Oil
Instrument weight without masses: Approx. 22 kg
Weight with OP0004/OP0301 without masses: Approx. 24 kg
Measurement principle: Piston gauge / deadweight tester
Standard gravity: 9.80665 m/s²
Local gravity: Available
Operating temperature: 18 to 28 °C
Motorization: Optional
Automatic pressure calculation: Optional
Computer data transfer: Optional
Technical Data
| Feature | europascal BH2-7000B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH2-7000B |
| Device type | High Pressure Hydraulic Deadweight Tester |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 200–7,000 bar |
| Measuring range | 20,000–700,000 kPa |
| Manufacturer imperial range | 2,000–100,000 psi |
| Maximum pressure | 7,000 bar / 700 MPa |
| Standard accuracy | 0.05 % of reading |
| Enhanced accuracy | Up to 0.02 % on request |
| Piston material | Tungsten carbide |
| Cylinder material | Tungsten carbide |
| Pressure medium | Oil |
| Weight without masses | Approx. 22 kg |
| Operating temperature | 18–28 °C |
| Standard gravity | 9.80665 m/s² |
| Local gravity | Available |
| Motorization | Optional OP0004 / OP0301 |
| Piston position visualization | Optional |
| Automatic pressure calculation | Optional OP0301 |
| Computer data transfer | Optional OP0301 |
Position within the BH2 High-Pressure Series
The BH2 series provides several pressure ranges for demanding hydraulic calibration applications.
| Model | Pressure Range | Accuracy |
|---|---|---|
| BH2-2000B | 40–2,000 bar | 0.02 % |
| BH2-2500B | 40–2,500 bar | 0.02 % |
| BH2-3000B | 40–3,000 bar | 0.02 % |
| BH2-4000B | 40–4,000 bar | 0.02 % |
| BH2-5000B | 40–5,000 bar | 0.02 % |
| BH2-6000B | 200–6,000 bar | 0.05 % |
| BH2-7000B | 200–7,000 bar | 0.05 % |
The BH2-7000B therefore provides the highest maximum pressure within this BH2 high-pressure group.
For applications where 5,000 bar is insufficient, the BH2-6000B and BH2-7000B extend the available pressure range to 600 and 700 MPa respectively.
BH2-7000B vs. BH2-6000B
The BH2-7000B and BH2-6000B are closely related high-pressure models.
| Feature | BH2-7000B | BH2-6000B |
|---|---|---|
| Minimum pressure | 200 bar | 200 bar |
| Maximum pressure | 7,000 bar | 6,000 bar |
| Maximum pressure | 700 MPa | 600 MPa |
| Standard accuracy | 0.05 % | 0.05 % |
| Number of pistons | 1 | 1 |
| Pressure medium | Oil | Oil |
| Standard operation | Manual | Manual |
| Motorization | Optional | Optional |
| Automatic calculation | Optional | Optional |
The BH2-7000B is therefore the appropriate choice when calibration points above 6,000 bar are required.
Typical Calibration Applications
The europascal BH2-7000B High Pressure Deadweight Tester is designed for calibration of mechanical and electronic high-pressure instruments, including:
- High-pressure gauges
- Digital pressure gauges
- High-pressure sensors
- Pressure transducers
- Pressure transmitters
- Pressure switches
- Reference pressure instruments
- High-pressure measurement systems
- Industrial hydraulic pressure equipment
Typical users include:
- Professional calibration laboratories
- Pressure instrument manufacturers
- Research laboratories
- High-pressure technology facilities
- Industrial quality assurance departments
- Calibration service organizations
Calibration and Traceability
Regular calibration of a high-pressure deadweight tester is essential for maintaining reliable metrological performance.
Important calibration parameters include:
- Effective piston area
- Pressure coefficient
- Piston-cylinder behavior
- Calibration mass values
- Local gravitational acceleration
- Temperature
- Repeatability
- Relevant correction quantities
The europascal calibration service provides professional calibration solutions for pressure balances, deadweight testers, high-pressure gauges, pressure sensors and pressure transmitters.
europascal can also provide support with maintenance, configuration and selection of suitable high-pressure calibration equipment.
Why Choose the europascal BH2-7000B?
The europascal BH2-7000B Precise High Pressure Deadweight Tester combines an exceptional hydraulic measuring range from 200 to 7,000 bar with a standard accuracy of 0.05 % of reading and enhanced performance up to 0.02 % on request.
Its single-piston design provides continuous operation throughout the complete specified range, while the tungsten carbide piston and tungsten carbide cylinder provide the mechanical properties required for pressure generation up to 700 MPa.
The standard BH2 platform provides robust high-performance deadweight tester operation, while optional motorization, piston position visualization, automatic pressure calculation and computer data transfer allow the system to be adapted to more automated calibration workflows.
For professional laboratories requiring a physical hydraulic pressure standard up to 7,000 bar, the BH2-7000B provides an excellent combination of extreme pressure capability, metrological performance and configurable operation.
Looking for the europascal BH2-7000B or a hydraulic high-pressure calibration solution up to 7,000 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
