The europascal BH2-2000B High Pressure Deadweight Tester is a high-performance hydraulic pressure standard designed for precise calibration applications from 40 to 2,000 bar. With a standard accuracy of 0.02 % of reading and enhanced performance up to 0.006 % on request, the BH2-2000B provides a reliable physical pressure reference for professional calibration laboratories, pressure instrument manufacturers, research facilities and industrial quality assurance departments.
The instrument covers a measuring range from 40 to 2,000 bar, corresponding to 4 to 200 MPa, 4,000 to 200,000 kPa and 600 to 30,000 psi according to the manufacturer.
The BH2-2000B uses a single precision piston-cylinder system with a typical piston area of 2.69215 mm². Both the piston and cylinder are manufactured from tungsten carbide, providing the mechanical stability, hardness and wear resistance required for demanding high-pressure calibration.
The instrument uses the CH2-2000B pressure generator and operates with sebacate oil with a specified density of approximately 915 kg/m³.
The reference pressure is generated physically by calibrated masses acting on the piston-cylinder assembly. The robust BH2 platform can additionally be equipped with motorized mass rotation, piston position visualization and automatic pressure calculation for more advanced calibration workflows.
The europascal calibration service provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, pressure sensors, pressure transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH2-2000B High Pressure Deadweight Tester provides:
- Hydraulic high-pressure deadweight tester
- Measuring range from 40 to 2,000 bar
- Measuring range from 4 to 200 MPa
- Measuring range from 4,000 to 200,000 kPa
- Manufacturer range from 600 to 30,000 psi
- Standard accuracy of 0.02 % of reading
- Enhanced accuracy up to 0.006 % on request
- Single-piston configuration
- One precision piston-cylinder system
- Typical piston area of 2.69215 mm²
- Tungsten carbide piston
- Tungsten carbide cylinder
- CH2-2000B pressure generator
- Sebacate oil as pressure medium
- Fluid density approximately 915 kg/m³
- Stainless steel calibration masses
- Instrument weight approximately 22 kg without masses
- Standard or customer-specific gravity
- Optional motorized mass rotation
- Optional piston position visualization
- Optional automatic pressure calculation
- Optional computer data transfer
Measuring Range from 40 to 2,000 bar
The europascal BH2-2000B covers a hydraulic pressure range from:
40 to 2,000 bar
This corresponds to:
4 to 200 MPa
and:
4,000 to 200,000 kPa
The manufacturer specifies the imperial range as:
600 to 30,000 psi
The maximum pressure is therefore:
2,000 bar / 200 MPa
The wide measuring range makes the BH2-2000B suitable for calibrating a broad range of hydraulic pressure instruments with a single piston-cylinder system.
Accuracy of 0.02 % of Reading
The standard accuracy of the europascal BH2-2000B is:
0.02 % of reading
For applications with particularly demanding metrological requirements, AREMECA specifies enhanced performance:
up to 0.006 % on request
This enhanced specification makes the BH2-2000B particularly interesting for high-level reference calibration applications.
The actual measurement uncertainty achieved during calibration additionally depends on the individual calibration certificate, environmental conditions, operating procedure and characteristics of the device under test.
Physical Piston Gauge Measurement Principle
The europascal BH2-2000B High Pressure Deadweight Tester operates according to the physical piston gauge principle.
The fundamental 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
This direct relationship between force and effective piston area forms the physical basis of pressure generation with a deadweight tester.
For precision calibration, additional correction quantities are considered according to the individual calibration data and operating conditions.
Typical Piston Area of 2.69215 mm²
AREMECA specifies a typical piston area for the BH2-2000B of:
2.69215 mm²
The relatively small piston area enables pressures up to 2,000 bar to be generated using manageable calibration masses.
The relationship follows directly from:
p = F / A
For a given force, a smaller effective piston area produces a higher pressure.
For precision calibration, the individually calibrated effective area of the piston-cylinder assembly is used rather than simply relying on its typical nominal area.
Tungsten Carbide Piston and Cylinder
The BH2-2000B uses:
Piston: tungsten carbide
Cylinder: tungsten carbide
Tungsten carbide combines very high hardness with excellent wear resistance and dimensional stability.
These properties are especially valuable for a precision piston-cylinder system operating at pressures up to:
2,000 bar / 200 MPa
The effective piston area is one of the most important metrological parameters of the deadweight tester and therefore requires excellent dimensional stability.
Single-Piston Configuration
The europascal BH2-2000B incorporates:
one piston
and:
one precision piston-cylinder system
The complete measuring range from 40 to 2,000 bar is covered by this single piston configuration.
No change between separate low-pressure and high-pressure piston-cylinder assemblies is required within the specified measuring range.
This simplifies operation and makes the BH2-2000B particularly suitable for regular and intensive calibration work.
Sebacate Oil as Pressure Medium
The BH2-2000B operates hydraulically with:
sebacate oil
The manufacturer specifies a fluid density of approximately:
915 kg/m³
Hydraulic operation is particularly suitable for high-pressure calibration because liquids have relatively low compressibility compared with gases.
Correct filling, cleanliness and venting of the pressure system are important for stable operation.
Trapped gas can increase settling time and affect pressure stability.
Compatibility between the hydraulic medium and the device under test should always be verified before calibration.
CH2-2000B Pressure Generator
The europascal BH2-2000B uses the:
CH2-2000B pressure generator
The generator is used to build the hydraulic pressure required to raise the piston and balance the applied calibration masses.
The CH2-2000B provides a robust manually operated solution for pressure generation up to the maximum operating pressure of the BH2-2000B.
The capstan allows the operator to adjust the hydraulic pressure until the piston reaches its appropriate operating position.
High-Pressure Calibration up to 200 MPa
A maximum pressure of 2,000 bar corresponds to:
200 MPa
All pressure-containing components of the calibration setup must therefore be suitable for the maximum applied pressure.
This includes:
- High-pressure tubing
- Fittings
- Adapters
- Valves
- Seals
- Pressure generator
- Device under test
- Associated safety components
The system must be completely depressurized before hydraulic connections are changed.
Measurement Uncertainty Contributions
The complete measurement uncertainty of a high-pressure calibration depends on several influence quantities.
Relevant contributions can include:
- Calibration uncertainty of the masses
- Effective piston area
- Pressure coefficient
- Elastic deformation of the piston-cylinder system
- Local gravitational acceleration
- Air buoyancy
- Piston-cylinder temperature
- Thermal expansion
- Hydraulic fluid properties
- Hydrostatic head difference
- Repeatability
- Sensitivity
- Pressure stability
- Resolution of the device under test
- Environmental conditions
At pressures up to 200 MPa, pressure-related changes in the effective piston area can be particularly important.
The final measurement uncertainty should therefore be calculated using the actual calibration data of the individual piston-cylinder system and mass set.
Stainless Steel Calibration Masses
The BH2 series uses:
stainless steel calibration masses
These calibrated masses generate the gravitational force acting on the precision piston.
Together with the effective piston area and gravitational acceleration, they determine the generated reference pressure.
The principal mass set can be selected for different pressure units, such as:
- bar
- psi
- kPa
Intermediate or additional mass sets for other units are also available.
Standard or 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.
The BH2-2000B can therefore be configured for either:
standard gravity
or:
customer-specific local gravity
The desired gravity value can be specified when ordering.
For precision pressure calibration, the correct gravity value is important because a relative change in gravitational acceleration directly influences the force generated by the calibration masses.
Operating Conditions
AREMECA specifies an operating temperature range of:
18 to 28 °C
The deadweight tester is calibrated under reference conditions of:
Temperature: 20 °C
Atmospheric pressure: 1013.25 hPa
Relative humidity: 50 %
Gravitational acceleration: 9.80665 m/s²
If the instrument is used under different conditions, the generated pressure must be recalculated according to the relevant variables and correction data.
Instrument Connection and Leveling
The standard connection for the device under test is:
Swivel G1/2 HP
Other fittings are available as options.
The BH2 platform also includes a leveling bubble and adjustable feet.
Correct leveling is important because the piston must operate vertically to minimize unwanted lateral forces and ensure proper piston-cylinder operation.
Instrument Weight
The standard BH2-2000B weighs approximately:
22 kg without calibration masses
With option OP0004 or OP0301, the manufacturer specifies approximately:
24 kg without calibration masses
The total system weight additionally depends on the selected calibration mass set.
Optional OP0004 Motorization
The europascal BH2-2000B can be equipped with:
Option OP0004
This 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 also reduces manual intervention during repetitive calibration procedures.
The piston position indication assists the operator in maintaining the piston within its correct working position.
Optional OP0301 Calculator Module
For more advanced calibration workflows, the BH2-2000B can be equipped with:
Option OP0301
This adds functions including:
- Motorized operation
- Dynamic piston position visualization
- Calculator module
- Automatic pressure calculation
- Automatic display of generated pressure
- Consideration of temperature
- Consideration of atmospheric pressure
- Consideration of humidity
- Data transfer to a computer
- Calibration data traceability
- Support for calibration certificate generation
This allows the traditional physical pressure standard to be integrated into a more digitally supported calibration workflow.
Calibration Certificate and Traceability
The BH2-2000B is supplied with a factory calibration certificate traceable to national standards.
Depending on the calibration requirements, an accredited:
COFRAC or DKD/DAkkS calibration certificate
is available as an option.
This allows the instrument to be configured according to the traceability and quality requirements of the calibration laboratory.
Technical Highlights
Model: europascal BH2-2000B
Device type: High Pressure Hydraulic Deadweight Tester
Configuration: Single piston
Number of pistons: 1
Measuring range: 40 to 2,000 bar
Measuring range: 4 to 200 MPa
Measuring range: 4,000 to 200,000 kPa
Manufacturer imperial range: 600 to 30,000 psi
Maximum pressure: 2,000 bar / 200 MPa
Standard accuracy: 0.02 % of reading
Enhanced accuracy: Up to 0.006 % on request
Typical piston area: 2.69215 mm²
Piston material: Tungsten carbide
Cylinder material: Tungsten carbide
Generator base: CH2-2000B
Pressure medium: Sebacate oil
Fluid density: Approx. 915 kg/m³
Weight without masses: Approx. 22 kg
DUT connection: Swivel G1/2 HP
Operating temperature: 18 to 28 °C
Standard gravity: 9.80665 m/s²
Local gravity: Available
Motorization: Optional OP0004 / OP0301
Automatic pressure calculation: Optional OP0301
Computer data transfer: Optional OP0301
Technical Data
| Feature | europascal BH2-2000B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH2-2000B |
| Device type | High Pressure Hydraulic Deadweight Tester |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 40–2,000 bar |
| Measuring range | 4–200 MPa |
| Measuring range | 4,000–200,000 kPa |
| Manufacturer imperial range | 600–30,000 psi |
| Maximum pressure | 2,000 bar / 200 MPa |
| Standard accuracy | 0.02 % of reading |
| Enhanced accuracy | Up to 0.006 % on request |
| Typical piston area | 2.69215 mm² |
| Piston material | Tungsten carbide |
| Cylinder material | Tungsten carbide |
| Generator base | CH2-2000B |
| Pressure medium | Sebacate oil |
| Fluid density | Approx. 915 kg/m³ |
| Weight without masses | Approx. 22 kg |
| DUT connection | Swivel G1/2 HP |
| Operating temperature | 18–28 °C |
| Standard gravity | 9.80665 m/s² |
| Local gravity | Available |
| Mass rotation | Manual as standard |
| Motorization | Optional |
| Automatic pressure calculation | Optional OP0301 |
| Data transfer | Optional OP0301 |
Position within the BH2 High-Pressure Series
The BH2 series provides several high-pressure configurations:
| Model | Pressure Range |
|---|---|
| BH2-2000B | 40–2,000 bar |
| BH2-2500B | 40–2,500 bar |
| BH2-3000B | 40–3,000 bar |
| BH2-4000B | 40–4,000 bar |
| BH2-5000B | 40–5,000 bar |
| BH2-6000B | 200–6,000 bar |
| BH2-7000B | 200–7,000 bar |
The BH2-2000B is the first model in this high-pressure BH2 group with a measuring range starting at 40 bar.
It provides an attractive solution for laboratories requiring calibration up to 200 MPa without requiring the higher maximum pressure capability of the 2,500, 3,000, 4,000 or 5,000 bar models.
BH2-2000B vs. BH2-2500B
The BH2-2000B and BH2-2500B share the same lower measuring limit but differ in maximum pressure.
| Feature | BH2-2000B | BH2-2500B |
|---|---|---|
| Minimum pressure | 40 bar | 40 bar |
| Maximum pressure | 2,000 bar | 2,500 bar |
| Maximum pressure | 200 MPa | 250 MPa |
| Accuracy | 0.02 % | 0.02 % |
| Number of pistons | 1 | 1 |
| Pressure medium | Oil | Oil |
| Standard operation | Manual | Manual |
| Motorization | Optional | Optional |
| Automatic calculation | Optional | Optional |
The BH2-2000B is therefore an excellent choice when calibration requirements do not exceed 2,000 bar, while the BH2-2500B extends the maximum pressure to 250 MPa.
Typical Calibration Applications
The europascal BH2-2000B High Pressure Deadweight Tester is suitable for testing, adjustment and calibration of:
- High-pressure gauges
- Digital pressure gauges
- Pressure sensors
- Pressure transducers
- Pressure transmitters
- Pressure switches
- Reference pressure instruments
- Hydraulic high-pressure measurement systems
- Industrial pressure equipment
Typical users include:
- Professional calibration laboratories
- Pressure instrument manufacturers
- Industrial quality assurance departments
- Research laboratories
- High-pressure technology facilities
- Calibration service organizations
Calibration and Service by europascal
Regular calibration of a high-pressure deadweight tester is important for maintaining reliable metrological performance.
Important calibration parameters include:
- Effective piston area
- Pressure coefficient
- Piston-cylinder characteristics
- 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, repair and selection of suitable pressure calibration equipment.
Why Choose the europascal BH2-2000B?
The europascal BH2-2000B Precise High Pressure Deadweight Tester combines a wide hydraulic pressure range from 40 to 2,000 bar with a standard accuracy of 0.02 % of reading and enhanced performance up to 0.006 % on request.
Its single-piston configuration, typical piston area of 2.69215 mm², tungsten carbide piston and cylinder, CH2-2000B pressure generator and sebacate oil pressure medium provide a robust physical reference for demanding pressure calibration applications up to 200 MPa.
The standard BH2 platform provides reliable manual operation, while optional motorization, piston position visualization, automatic pressure calculation and computer data transfer allow the system to be adapted to advanced calibration workflows.
For professional laboratories requiring a physical hydraulic pressure reference from 40 bar up to 2,000 bar, the BH2-2000B provides an excellent combination of measuring range, metrological performance, robust construction and configurable functionality.
Looking for the europascal BH2-2000B or a hydraulic high-pressure calibration solution up to 2,000 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
