The europascal BH2-60B Hydraulic Deadweight Tester is a high-performance single-piston pressure standard designed for precise hydraulic pressure calibration from 0.2 to 60 bar. With an accuracy of 0.01 % of reading, optionally available with an enhanced accuracy of up to 0.006 % on request, the BH2-60B provides a reliable physical pressure reference for professional calibration laboratories, industrial metrology, quality assurance, research and development.
The measuring range corresponds to 20 to 6,000 kPa or 3 to 800 psi. A single precision piston-cylinder system covers the complete pressure range, providing straightforward operation without the need to change between different pistons.
The BH2-60B operates according to the fundamental physical principle of a piston gauge. Precisely calibrated masses generate a defined force on a characterized piston-cylinder assembly. The resulting equilibrium between force and hydraulic pressure provides an accurate and stable reference pressure for comparison with the device under test.
The system uses H15 oil with a density of approximately 845 kg/m³ as the pressure medium. The typical piston area is 39.2280 mm². The piston is manufactured from tungsten carbide, while the cylinder is manufactured from treated steel. Pressure generation is provided by the CH2-125B generator base.
europascal supports professional users with product selection, configuration, maintenance and calibration. The europascal calibration service provides professional calibration solutions for deadweight testers, piston gauges, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH2-60B Hydraulic Deadweight Tester combines high accuracy, a broad hydraulic measuring range and a robust single-piston design.
Key benefits include:
- High-performance hydraulic deadweight tester
- Measuring range from 0.2 to 60 bar
- Measuring range from 20 to 6,000 kPa
- Measuring range from 3 to 800 psi
- Maximum pressure of 60 bar / 6 MPa
- Accuracy of 0.01 % of reading
- Accuracy up to 0.006 % available on request
- Single precision piston-cylinder system
- Typical piston area of 39.2280 mm²
- Tungsten carbide piston
- Treated steel cylinder
- CH2-125B generator base
- H15 oil as pressure medium
- Fluid density approximately 845 kg/m³
- Approx. 22 kg device weight without weights
- Different pressure units available
- Standard gravity of 9.80665 m/s² or customer-specific gravity
- Optional intermediate and additional weight sets
- Optional motorization
- Optional piston position visualization
- Optional automatic pressure calculation
- Optional computer data transfer
- Adaptation for special fluids available
- Optional accredited calibration certificate
- Professional calibration and service from europascal
The combination of a low starting pressure of 0.2 bar and a maximum pressure of 60 bar makes the BH2-60B a versatile hydraulic reference standard.
Ideal for Demanding Calibration Applications
The europascal BH2-60B is designed for professional pressure calibration applications where high accuracy, stability and traceability are required.
Typical devices under test include:
- Precision pressure gauges
- Digital pressure gauges
- Reference pressure indicators
- Pressure sensors
- Pressure transmitters
- Pressure transducers
- Pressure switches
- Hydraulic process instruments
- Secondary pressure standards
- Industrial pressure measuring equipment
The measuring range up to 60 bar covers numerous industrial and laboratory pressure applications.
The BH2-60B is particularly suitable when a physical primary measurement principle is preferred instead of relying exclusively on an electronic pressure sensor.
Pressure Range from 0.2 to 60 bar
The europascal BH2-60B covers a measuring range from:
0.2 to 60 bar
This corresponds to:
20 to 6,000 kPa
or:
3 to 800 psi
The maximum pressure is:
60 bar / 6 MPa
The ratio between minimum and maximum pressure is approximately:
1:300
This broad measuring range is covered with only one piston-cylinder system.
For calibration laboratories, this provides an important practical advantage because a large number of common pressure instruments can be calibrated without changing the piston-cylinder assembly.
Accuracy of 0.01 % of Reading
The europascal BH2-60B Hydraulic Deadweight Tester provides a standard accuracy of:
0.01 % of reading
For applications with particularly demanding accuracy requirements, an enhanced accuracy of:
up to 0.006 %
is available on request.
Because the specification is related to the reading rather than simply to the full measuring range, the BH2-60B provides excellent performance across its specified operating range.
The complete measurement uncertainty of an actual calibration additionally depends on quantities such as:
- Calibration of the masses
- Effective piston-cylinder area
- Local gravitational acceleration
- Air buoyancy
- Piston-cylinder temperature
- Density of the pressure medium
- Pressure deformation of the piston-cylinder system
- Hydrostatic head difference
- Repeatability
- Resolution of the device under test
- Environmental conditions
These influence quantities should be considered when establishing a measurement uncertainty budget for high-accuracy calibration.
Fundamental Piston Gauge Measurement Principle
The europascal BH2-60B 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 generated by the calibrated masses is primarily determined by:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified pressure relationship therefore becomes:
p = (m × g) / A
For high-accuracy pressure calibration, additional corrections can be required for effects such as air buoyancy, piston temperature, pressure deformation, fluid head and local gravitational acceleration.
This fundamental relationship makes the deadweight tester an excellent physical reference for pressure metrology.
Precision Single-Piston System
The europascal BH2-60B uses one precision piston-cylinder system across its complete measuring range from 0.2 to 60 bar.
The typical piston area is:
39.2280 mm²
The piston is manufactured from:
tungsten carbide
and the cylinder is manufactured from:
treated steel
Tungsten carbide provides excellent hardness and dimensional stability, making it particularly suitable for precision piston components.
The calibrated effective area of the piston-cylinder assembly is one of the principal quantities determining the generated pressure.
The single-piston configuration also simplifies everyday operation because no piston change is required across the specified measuring range.
Hydraulic Operation with H15 Oil
The europascal BH2-60B is a hydraulic deadweight tester.
The specified pressure medium is:
H15 oil
with a fluid density of approximately:
845 kg/m³
The hydraulic system transfers the generated pressure to both the precision piston-cylinder assembly and the connected device under test.
Hydraulic operation provides stable pressure generation and is particularly suitable for instruments compatible with mineral oil.
For high-accuracy measurements, the density of the pressure medium can become relevant when a vertical height difference exists between the reference level of the deadweight tester and the reference level of the device under test.
This effect can be corrected using the appropriate hydrostatic head correction.
CH2-125B Pressure Generator
The europascal BH2-60B uses the:
CH2-125B generator base
The hydraulic pressure generator allows the operator to generate and precisely adjust the pressure required to bring the piston and applied masses into equilibrium.
Fine adjustment is particularly important when positioning the piston within its correct operating range.
The generator base, piston-cylinder assembly and calibrated mass set together form the complete physical pressure generation system.
Flexible Weight Sets and Pressure Units
The BH2-60B can be configured with the required principal weight set.
The pressure unit should be specified when ordering.
Available units include:
bar
psi
kPa
and other available engineering units.
Intermediate weight sets and additional principal weight sets for different units are also available.
This enables the pressure standard to be adapted to the calibration laboratory’s specific workload.
The mass system is manufactured from high-quality stainless steel and designed for reliable professional use.
Standard Gravity and Local Gravity
The generated force depends directly on gravitational acceleration.
The internationally defined standard gravitational acceleration is:
g = 9.80665 m/s²
However, the actual local value of gravitational acceleration varies with geographical location.
The BH2-60B can therefore be configured either for standard gravity or for a specified local gravity value.
This is important because the pressure generated by a deadweight tester is directly related to the force produced by the calibrated masses.
For demanding metrological applications, using the appropriate local gravity value contributes to reducing measurement uncertainty.
Technical Highlights
Model: europascal BH2-60B
Device type: Hydraulic Deadweight Tester
Product family: BH2 High Performance
Configuration: Single piston
Number of pistons: 1
Measuring range: 0.2 to 60 bar
Measuring range: 20 to 6,000 kPa
Measuring range: 3 to 800 psi
Maximum pressure: 60 bar / 6 MPa
Accuracy: 0.01 % of reading
Enhanced accuracy: Up to 0.006 % on request
Measurement principle: Piston gauge
Pressure medium: H15 oil
Fluid density: Approx. 845 kg/m³
Generator base: CH2-125B
Typical piston area: 39.2280 mm²
Piston material: Tungsten carbide
Cylinder material: Treated steel
Number of pistons: 1
Device weight without weights: Approx. 22 kg
Standard gravity: 9.80665 m/s²
Technical Data
| Feature | europascal BH2-60B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH2-60B |
| Device type | Hydraulic Deadweight Tester |
| Product family | BH2 High Performance |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 0.2–60 bar |
| Measuring range | 20–6,000 kPa |
| Measuring range | 3–800 psi |
| Maximum pressure | 60 bar / 6 MPa |
| Accuracy | 0.01 % of reading |
| Enhanced accuracy | Up to 0.006 % on request |
| Measurement principle | Piston gauge |
| Pressure medium | H15 oil |
| Fluid density | Approx. 845 kg/m³ |
| Generator base | CH2-125B |
| Typical piston area | 39.2280 mm² |
| Piston material | Tungsten carbide |
| Cylinder material | Treated steel |
| Weight without mass set | Approx. 22 kg |
| Standard gravity | 9.80665 m/s² |
| Local gravity | Customer-specific value available |
| Motorization | Optional |
| Piston position visualization | Optional |
| Automatic pressure calculation | Optional |
| Data transfer | Optional |
Optional Motorization and Piston Position Visualization
The europascal BH2-60B can be equipped with option OP0004.
This option provides motorized rotation of the mass system and visualization of the piston position using indicator lights.
Rotation of the piston helps reduce friction effects and supports stable operation of the piston-cylinder system.
Piston position visualization provides the operator with additional information about the current measurement condition.
This is particularly useful during repetitive calibration procedures and can increase operating convenience in laboratories with a high calibration workload.
Optional Automatic Pressure Calculation
For more advanced calibration applications, the BH2-60B can be equipped with option OP0301.
The calculator module provides:
- Dynamic visualization of piston position
- Automatic display of generated pressure
- Consideration of temperature
- Consideration of atmospheric pressure
- Consideration of humidity
- Computer data transfer
- Support for calibration certificate generation
- Improved traceability of calibration data
This option combines the fundamental physical measurement principle of the deadweight tester with modern digital calibration functionality.
It can reduce manual calculations and data entry while improving operator convenience.
Compatibility with Special Fluids
In addition to the standard configuration with H15 oil, AREMECA offers adaptations for certain special or corrosive fluids.
Examples listed by the manufacturer include:
Skydrol
and:
brake fluid
This can be particularly valuable for specialized industrial, automotive and aerospace applications.
The exact compatibility and required configuration should always be clarified before ordering because the piston-cylinder system, seals, tubing and other wetted components must be suitable for the selected fluid.
BH2-60B Compared with BH2-30B and BH2-150B
The BH2 series provides several hydraulic single-piston models for different pressure ranges.
| Model | Pistons | Measuring Range |
|---|---|---|
| BH2-30B | 1 | 0.1–30 bar |
| BH2-60B | 1 | 0.2–60 bar |
| BH2-150B | 1 | 0.5–150 bar |
The BH2-60B is positioned between the BH2-30B and BH2-150B.
Compared with the BH2-30B, it doubles the maximum pressure from 30 to 60 bar while retaining a low starting pressure of only 0.2 bar.
For applications above 60 bar, the BH2-150B extends the single-piston measuring range to 150 bar.
This modular product family allows laboratories to select the pressure standard that best matches their calibration workload.
BH2 High Performance Series
The europascal Aremeca BH2 High Performance series provides hydraulic deadweight testers for pressure ranges extending from low hydraulic pressures to several thousand bar.
Depending on the model, single-piston and dual-piston versions are available.
This broad product range makes it possible to configure a pressure calibration laboratory around the required pressure range, accuracy and operating concept.
Further europascal Aremeca products can be found here.
Calibration Certificate and Service
The europascal BH2-60B is supplied with a factory calibration certificate traceable to national standards.
According to the manufacturer, an optional COFRAC or DKD/DAkkS calibration certificate is also available.
AREMECA recommends calibration of the instrument approximately every two or five years depending on use.
For professional calibration and long-term metrological support, the europascal calibration service provides solutions for deadweight testers, piston gauges, pressure gauges, pressure sensors, pressure transmitters and other pressure measuring equipment.
Regular calibration and appropriate maintenance help ensure reliable performance and measurement traceability throughout the lifetime of the pressure standard.
Why Choose the europascal BH2-60B?
The europascal BH2-60B Precise Hydraulic Deadweight Tester combines a wide measuring range from 0.2 to 60 bar with a standard accuracy of 0.01 % of reading.
For applications requiring enhanced performance, accuracy up to 0.006 % is available on request.
Its single-piston system with a typical piston area of 39.2280 mm² covers the complete measuring range without requiring a piston change.
The tungsten carbide piston, treated steel cylinder, H15 hydraulic oil and CH2-125B pressure generator provide a robust foundation for professional pressure calibration.
Optional motorization, piston position visualization and automatic pressure calculation allow the BH2-60B to be adapted to advanced calibration workflows.
Combined with professional advice, calibration and service from europascal, the BH2-60B provides an excellent physical pressure reference for professional laboratory and industrial applications.
Typical Calibration Applications with the europascal BH2-60B
The europascal BH2-60B is particularly suitable for calibrating precision pressure gauges, digital pressure gauges, reference pressure instruments, pressure sensors, pressure transmitters, pressure transducers, pressure switches and hydraulic process instruments.
Typical application areas include professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance, mechanical engineering, plant engineering, research and development and other applications requiring reliable hydraulic reference pressures up to 60 bar.
Looking for the europascal BH2-60B or a precise hydraulic pressure calibration solution? Contact europascal for expert advice, product configuration and professional calibration services tailored to your requirements.
