The europascal BH4-2000B Automatic Deadweight Tester is a high-performance hydraulic pressure standard designed for precise and efficient pressure calibration from 40 to 2,000 bar. With an accuracy of 0.02 %, the BH4-2000B combines the proven physical measurement principle of a piston gauge with advanced automation for professional calibration laboratories, pressure instrument manufacturers and demanding industrial applications.
The measuring range extends from 40 to 2,000 bar, corresponding to 4 to 200 MPa and approximately 600 to 30,000 psi. This broad pressure range makes the europascal BH4-2000B particularly suitable for calibrating high-pressure sensors, pressure transducers, pressure transmitters, precision pressure gauges and other hydraulic pressure measuring instruments.
The BH4-2000B is designed as a single-piston hydraulic deadweight tester. Unlike a conventional manually operated pressure balance, the BH4 platform integrates motorized operation, dynamic piston position visualization, automatic calculation and display of the generated pressure, operator assistance, result recording and computer data transfer.
This combination of a physical pressure standard and integrated electronic functionality makes the BH4-2000B particularly suitable for regular and intensive calibration work.
europascal provides professional support for pressure calibration equipment, including product selection, system configuration, maintenance and calibration. The europascal calibration service provides professional solutions for deadweight testers, pressure balances, pressure gauges, high-pressure sensors, pressure transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BH4-2000B Automatic Deadweight Tester combines precise physical pressure generation with advanced operator assistance.
Key benefits include:
- Automatic hydraulic deadweight tester
- Measuring range from 40 to 2,000 bar
- Maximum pressure of 2,000 bar / 200 MPa
- Measuring range from approximately 600 to 30,000 psi
- Accuracy of 0.02 %
- Single-piston configuration
- Physical piston gauge measurement principle
- Hydraulic operation with oil
- Stainless steel calibration masses
- Integrated motorized operation
- Dynamic piston position visualization
- Automatic pressure calculation and display
- Different pressure units with the same weight set
- Operator assistance during calibration
- Recording of calibration results
- Computer data transfer
- Suitable for regular and intensive calibration work
- Professional calibration and service from europascal
Measuring Range from 40 to 2,000 bar
The europascal BH4-2000B covers a hydraulic pressure range from:
40 to 2,000 bar
This corresponds to:
4,000 to 200,000 kPa
or:
4 to 200 MPa
The manufacturer also specifies a range of approximately:
600 to 30,000 psi
The maximum pressure is therefore:
2,000 bar / 200 MPa
The wide measuring range makes the BH4-2000B suitable for numerous high-pressure calibration applications using one reference standard.
Accuracy of 0.02 %
The europascal BH4-2000B provides a specified accuracy of:
0.02 %
This performance makes the instrument suitable for demanding calibration tasks involving high-quality pressure sensors, transmitters, transducers and pressure gauges.
The total measurement uncertainty of an actual calibration additionally depends on the relevant influence quantities of the pressure balance and complete calibration setup.
Important contributions can include:
- Calibration of the mass set
- Effective piston area
- Pressure coefficient of the piston-cylinder system
- 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
For high-pressure piston gauges, accurate characterization of the piston-cylinder assembly is particularly important because its effective area can change with pressure and temperature.
Fundamental Piston Gauge Measurement Principle
The europascal BH4-2000B Automatic Deadweight Tester operates according to the 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 gravitational force produced by the calibrated masses is primarily determined by:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified relationship therefore becomes:
p = (m × g) / A
For precision calibration, the actual pressure calculation can include relevant corrections for the mass values, local gravitational acceleration, air buoyancy, piston-cylinder temperature, effective piston area, pressure deformation and hydrostatic head.
The BH4-2000B combines this proven physical measurement principle with automatic calculation and electronic operator assistance.
Single-Piston High-Pressure System
The europascal BH4-2000B uses:
one precision piston-cylinder system
The complete specified pressure range from 40 to 2,000 bar is therefore covered with a single piston.
This provides straightforward operation without requiring the operator to switch between separate low-pressure and high-pressure piston systems.
The effective piston area is a fundamental metrological parameter because it directly influences the calculated reference pressure.
Automatic Pressure Calculation and Display
One of the major advantages of the europascal BH4-2000B compared with a conventional manual deadweight tester is its integrated calculation functionality.
The BH4 system provides:
- Automatic calculation of generated pressure
- Automatic display of generated pressure
- Operator assistance
- Different measurement units
- Reduced manual calculation effort
- Calibration data handling
With a conventional pressure balance, the operator must calculate the reference pressure using the calibrated masses, effective piston area and applicable correction factors.
The BH4 platform integrates these functions into the calibration system, making repetitive calibration procedures significantly more convenient.
Dynamic Piston Position Visualization
Correct piston position is essential for reliable deadweight tester operation.
The BH4 system therefore provides:
dynamic visualization of the piston position
The operator can monitor the piston during calibration and determine whether it is operating within the appropriate working position.
This helps simplify the balancing process and improves operator convenience during repetitive calibration procedures.
Integrated Motorized Operation
The europascal BH4-2000B incorporates motorized operation of the piston and mass system.
Rotation of the piston helps minimize friction effects between the piston and cylinder and supports free movement of the precision piston.
With a conventional manual pressure balance, the operator may need to initiate and maintain this rotation manually.
The automatic BH4 platform reduces this manual intervention and is therefore particularly suitable for regular and intensive laboratory use.
Operator Assistance During Calibration
The BH4 platform is designed to simplify calibration procedures.
The combination of:
motorized operation
dynamic piston position visualization
automatic pressure calculation
automatic pressure display
different measurement units
result recording
and:
computer data transfer
reduces the number of manual operations required during a calibration.
The actual reference pressure continues to be generated according to the fundamental physical piston gauge principle.
The electronic system primarily assists the operator with monitoring, calculation, documentation and data handling.
Recording of Calibration Results
The europascal BH4-2000B supports recording of calibration results.
This functionality is particularly useful for professional calibration laboratories processing large numbers of instruments or measurement points.
Recorded calibration information can support:
- Measurement documentation
- Calibration traceability
- Quality assurance
- Evaluation of devices under test
- Calibration history
- Digital laboratory workflows
Electronic recording can also reduce manual transcription and associated errors.
Computer Data Transfer
The BH4 platform supports the transfer of calibration data to a computer.
This allows measurement information to be incorporated into digital calibration workflows.
Computer communication can reduce manual data entry and simplify subsequent evaluation and documentation.
For laboratories performing regular or intensive high-pressure calibration, these functions provide significant workflow advantages compared with a purely mechanical pressure balance.
Different Pressure Units with the Same Weight Set
The integrated calculation functionality allows the operator to work with different pressure units using the same physical weight set.
Depending on the selected configuration, relevant pressure units can include:
- bar
- kPa
- MPa
- psi
- kg/cm²
This is particularly useful for calibration laboratories working with devices from different manufacturers, industries and countries.
Stainless Steel Calibration Masses
The BH4 platform uses:
stainless steel calibration masses
These calibrated masses generate the gravitational force acting on the piston.
Their calibration and stability are important because the generated pressure is directly related to the applied force.
The automatic calculation system combines the relevant mass values with the piston-cylinder data and applicable correction quantities to determine the reference pressure.
Standard Gravity and Local Gravity
The force generated by the calibration masses depends 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, the correct local gravity value can therefore be important.
A relative difference in gravitational acceleration directly affects the gravitational force generated by the masses and consequently the calculated reference pressure.
Hydraulic Operation with Oil
The europascal BH4-2000B is a hydraulic deadweight tester operating with:
oil
Hydraulic operation is particularly suitable for generating the high pressures required for calibration up to 2,000 bar.
Careful filling and venting of the hydraulic circuit are important because trapped gas can affect pressure generation, stability and settling behavior.
Compatibility between the hydraulic fluid and the device under test should also be verified before calibration.
All connected pressure components, adapters, tubing and fittings must be suitable for the intended maximum operating pressure.
Technical Highlights
Model: europascal BH4-2000B
Device type: Automatic Hydraulic Deadweight Tester
Product family: BH4 Automatic
Configuration: Single piston
Number of pistons: 1
Measuring range: 40 to 2,000 bar
Measuring range: 4 to 200 MPa
Measuring range: 600 to 30,000 psi
Maximum pressure: 2,000 bar / 200 MPa
Accuracy: 0.02 %
Measurement principle: Piston gauge / deadweight tester
Pressure medium: Oil
Calibration masses: Stainless steel
Motorized operation: Integrated
Piston position visualization: Dynamic
Pressure calculation: Automatic
Pressure display: Automatic
Different pressure units: Supported
Result recording: Integrated
Computer data transfer: Available
Technical Data
| Feature | europascal BH4-2000B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BH4-2000B |
| Device type | Automatic Hydraulic Deadweight Tester |
| Product family | BH4 Automatic |
| Configuration | Single piston |
| Number of pistons | 1 |
| Measuring range | 40–2,000 bar |
| Measuring range | 4–200 MPa |
| Measuring range | 600–30,000 psi |
| Maximum pressure | 2,000 bar / 200 MPa |
| Accuracy | 0.02 % |
| Measurement principle | Piston gauge |
| Pressure medium | Oil |
| Calibration masses | Stainless steel |
| Motorized operation | Integrated |
| Piston position visualization | Dynamic |
| Automatic pressure calculation | Integrated |
| Automatic pressure display | Integrated |
| Result recording | Integrated |
| Computer data transfer | Available |
BH4-2000B vs. BH2-2000B
The europascal Aremeca product range includes both the:
BH4-2000B
and:
BH2-2000B
Both are designed for high-pressure hydraulic calibration, but the operating concepts are different.
The BH2-2000B belongs to the high-performance conventional deadweight tester platform.
The BH4-2000B provides the automatic functionality of the BH4 platform.
| Feature | BH4-2000B | BH2-2000B |
|---|---|---|
| Measuring range | 40–2,000 bar | 40–2,000 bar |
| Maximum pressure | 2,000 bar | 2,000 bar |
| Configuration | Single piston | Single piston |
| Standard operation | Automatic | Manual |
| Motorized operation | Integrated | Optional |
| Piston position visualization | Integrated | Optional |
| Automatic pressure calculation | Integrated | Optional |
| Computer data functions | Integrated | Optional |
The BH4-2000B is therefore particularly attractive for laboratories where automatic operation, operator assistance and digital data handling are important.
The BH2-2000B provides an alternative when a conventional manually operated high-performance pressure balance is preferred.
BH4 High-Pressure Series
The europascal Aremeca BH4 family provides several automatic hydraulic pressure balances for demanding high-pressure applications.
| Model | Measuring Range | Accuracy |
|---|---|---|
| BH4-2000B | 40–2,000 bar | 0.02 % |
| BH4-2500B | 40–2,500 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 BH4-2000B is therefore the entry model in this particularly high-pressure section of the BH4 series.
It provides the same automatic operating concept while limiting the maximum pressure to 2,000 bar for applications where higher ranges are unnecessary.
Applications in Calibration Laboratories and Industry
The europascal BH4-2000B Automatic Deadweight Tester is suitable for organizations requiring reliable reference pressures at high hydraulic pressures.
Typical devices under test include:
- High-pressure sensors
- Pressure transducers
- Pressure transmitters
- Precision pressure gauges
- Digital high-pressure gauges
- Reference pressure instruments
- Hydraulic measurement systems
- High-pressure test equipment
- Industrial pressure instrumentation
Typical users include professional calibration laboratories, pressure instrument manufacturers, high-pressure component manufacturers, research institutes, development laboratories and industrial quality assurance departments.
Calibration and Traceability
Regular calibration of a high-pressure deadweight tester 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
- Relevant correction parameters
At pressures extending to 2,000 bar, accurate characterization of the piston-cylinder system remains an important part of pressure measurement traceability.
The europascal calibration service provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, pressure sensors, pressure 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 BH4-2000B?
The europascal BH4-2000B Precise Automatic Deadweight Tester combines a broad measuring range from 40 to 2,000 bar with an accuracy of 0.02 % and the advanced automatic functionality of the BH4 platform.
The instrument retains the physical measurement principle of a precision piston gauge while adding motorized operation, dynamic piston position visualization, automatic pressure calculation and display, operator assistance, result recording and computer data transfer.
These functions reduce operator workload and simplify repetitive calibration procedures while retaining the advantages of a physical pressure standard.
For professional laboratories regularly calibrating high-pressure sensors, pressure transducers, gauges and other instruments up to 2,000 bar, the BH4-2000B provides an effective combination of high-pressure capability, metrological performance and calibration automation.
Typical Calibration Applications with the europascal BH4-2000B
The europascal BH4-2000B is particularly suitable for calibration of high-pressure sensors, pressure transducers, pressure transmitters, precision pressure gauges, digital pressure gauges, reference pressure instruments and specialized hydraulic measurement systems.
Its combination of a 2,000 bar maximum pressure, 0.02 % accuracy and automatic operation makes it particularly suitable for professional calibration laboratories and industrial environments with regular high-pressure calibration requirements.
Looking for the europascal BH4-2000B or an automatic hydraulic pressure calibration solution up to 2,000 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.
