The europascal BA4-120B Automatic Deadweight Tester is a high-performance pneumatic pressure standard designed for precise and efficient pressure calibration from 1 to 120 bar. Combining the fundamental measurement principle of a piston gauge with integrated automatic pressure calculation, motorized mass rotation, dynamic piston position visualization and digital data handling, the BA4-120B is an advanced solution for professional calibration laboratories and industrial metrology.
The measuring range extends from 1 to 120 bar, corresponding to 100 to 12,000 kPa or 10 to 1,600 psi. With a specified accuracy of 0.01 %, the BA4-120B provides a reliable physical pressure reference for demanding calibration applications.
As part of the europascal Aremeca BA4 automatic deadweight tester series, the BA4-120B combines a precision piston-cylinder system and calibrated masses with an integrated calculator. The system supports the operator during calibration by displaying the generated pressure automatically and providing dynamic visualization of the piston position.
The automatic system also considers important environmental parameters such as temperature, atmospheric pressure and humidity when calculating the generated pressure. Calibration results can be recorded and transferred to a computer, supporting efficient and traceable calibration workflows.
The pneumatic operating principle makes the BA4-120B particularly suitable for pressure gauges, sensors, transmitters and other instruments that should remain free from hydraulic calibration media.
europascal provides professional support for product selection, configuration, maintenance and calibration. The europascal calibration service offers professional calibration solutions for deadweight testers, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BA4-120B Automatic Deadweight Tester combines high-performance pneumatic pressure generation with intelligent calculation and operator assistance.
Key benefits include:
- Automatic pneumatic deadweight tester
- Measuring range from 1 to 120 bar
- Measuring range from 100 to 12,000 kPa
- Measuring range from 10 to 1,600 psi
- Maximum pressure of 120 bar / 12 MPa
- Specified accuracy of 0.01 %
- Single-piston configuration
- Fundamental piston gauge measurement principle
- Automatic display of generated pressure
- Dynamic piston position visualization
- Motorized rotation of the masses
- Integrated environmental measurement
- Automatic pressure calculation
- Different pressure units with the same set of weights
- Operator assistance during calibration
- Recording of calibration results
- Data transfer to a computer
- Stainless steel masses
- Pneumatic operation with air
- Traceable pressure generation
- Professional calibration and service from europascal
The combination of a 120 bar pneumatic measuring range and integrated automation makes the BA4-120B particularly attractive for calibration laboratories performing regular or intensive high-accuracy pressure calibrations.
Ideal for Demanding Calibration Applications
The europascal BA4-120B is designed for professional calibration applications where high accuracy, repeatable pressure generation and efficient operation are required.
Typical devices under test include:
- Precision pressure gauges
- Digital pressure gauges
- Reference pressure indicators
- Pressure sensors
- Pressure transmitters
- Pressure transducers
- Pressure switches
- Pneumatic process instruments
- Secondary pressure standards
- Industrial pressure measuring equipment
The measuring range up to 120 bar makes the BA4-120B particularly useful for laboratories requiring pneumatic calibration at pressure levels where hydraulic systems are frequently used.
By maintaining a pneumatic pressure medium, sensitive gas-pressure instruments can remain free from contamination with hydraulic calibration oil.
Pressure Range from 1 to 120 bar
The europascal BA4-120B provides a measuring range from:
1 to 120 bar
This corresponds to:
100 to 12,000 kPa
or:
10 to 1,600 psi
The maximum pressure is therefore:
120 bar / 12 MPa
Within the BA4 automatic series, the BA4-120B is positioned between the BA4-60B and BA4-200B.
It provides twice the maximum pressure capability of the BA4-60B while retaining a relatively low starting pressure of only 1 bar.
This makes the BA4-120B an excellent solution for laboratories requiring broad pneumatic pressure coverage from low bar ranges up to 120 bar.
Accuracy of 0.01 %
The europascal BA4-120B Automatic Deadweight Tester provides a specified model accuracy of:
0.01 %
The BA4 product family is designed for high-precision calibration and combines the physical reference principle of a deadweight tester with automatic calculation and operator assistance.
The complete measurement uncertainty of an actual calibration depends on the calibrated characteristics of the pressure balance, environmental conditions and the device under test.
Relevant influence quantities can include:
- Calibration of the masses
- Effective piston-cylinder area
- Local gravitational acceleration
- Air buoyancy
- Piston temperature
- Atmospheric pressure
- Relative humidity
- Pressure deformation
- Height difference between reference level and DUT
- Repeatability
- Resolution of the device under test
The BA4 concept simplifies consideration of several of these quantities by integrating environmental sensors and automatic pressure calculation directly into the system.
Fundamental Piston Gauge Measurement Principle
The europascal BA4-120B is an automated instrument, but the reference pressure itself is based on the fundamental physical principle of a piston gauge.
The basic pressure relationship is:
p = F / A
where:
p = generated pressure
F = force acting on the piston
A = effective piston area
The primary force is generated by calibrated masses under gravity:
F = m × g
where:
m = applied mass
g = gravitational acceleration
The simplified relationship therefore becomes:
p = (m × g) / A
For precision pressure metrology, the actual calculation additionally considers correction quantities relating to the piston-cylinder assembly, masses and environmental conditions.
The BA4-120B integrates a calculator to support this process automatically.
Automatic Pressure Calculation
A major advantage of the europascal BA4-120B is its integrated calculator.
The instrument automatically displays the pressure generated by the deadweight tester.
Instead of requiring the operator to perform all pressure calculations separately, the BA4 system integrates relevant measurement and calculation functions into the instrument.
The automatic calculation can take into account environmental parameters including:
- Temperature
- Atmospheric pressure
- Humidity
This provides significant advantages during regular calibration work.
Manual calculations are reduced, the operator receives the generated reference pressure directly, and the risk of transcription or calculation errors can be minimized.
Dynamic Piston Position Visualization
Correct piston position is essential for reliable operation of a piston gauge.
The europascal BA4-120B therefore provides dynamic visualization of the piston position.
The operator can monitor the piston position directly during calibration and determine when the system is operating within the appropriate measurement condition.
This provides additional assistance compared with a purely mechanical deadweight tester.
Dynamic piston position visualization is particularly useful during repetitive calibration procedures and when a large number of pressure points must be generated efficiently.
Motorized Mass Rotation
The europascal BA4-120B incorporates motorized rotation of the mass system.
Rotation is an important part of piston gauge operation because it helps minimize friction effects between the piston and cylinder and supports stable piston movement.
With motorized operation, the user does not need to manually initiate and maintain the rotation of the mass stack.
This increases operating convenience and makes the BA4-120B especially suitable for regular and intensive calibration work.
Environmental Measurement
Environmental conditions are relevant to high-accuracy deadweight tester calculations.
The BA4 system therefore uses sensors in combination with its integrated calculator.
Relevant parameters include:
Temperature
Atmospheric pressure
Relative humidity
These quantities can be used when automatically calculating the pressure generated by the deadweight tester.
This integrated approach helps simplify the calibration procedure and provides the operator with a more complete pressure measurement system.
Pneumatic Pressure Generation
The europascal BA4-120B is part of AREMECA’s pneumatic BA4 range and operates with air as the pressure medium.
Pneumatic operation provides a significant advantage when devices under test should not be contaminated by hydraulic oil.
This is particularly important when calibrating instruments intended for:
- Clean gas applications
- Pneumatic processes
- Gas distribution systems
- Laboratory gas systems
- Pressure measurement with dry media
- Sensitive pressure sensors and transmitters
The ability to generate reference pressures pneumatically up to 120 bar makes the BA4-120B especially useful for specialized pressure calibration laboratories.
Different Pressure Units with the Same Weight Set
The integrated calculator provides an important advantage when different pressure units are required.
The BA4 concept allows different units of measurement to be used with the same set of weights.
This can simplify calibration work when instruments are scaled in different units.
Depending on the calibration task, pressure values can be handled in units such as:
bar
kPa
psi
and other supported pressure units.
The operator therefore benefits from greater flexibility without necessarily requiring separate physical mass sets for every displayed pressure unit.
Recording of Results and Computer Transfer
The europascal BA4-120B is designed to support modern digital calibration workflows.
The automatic system provides:
Recording of results
and:
Transfer of data to a computer
This functionality provides an important advantage over conventional deadweight testers where values must often be documented manually.
Electronic transfer can support traceability, simplify documentation and reduce manual transcription work.
The BA4-120B therefore combines a fundamental physical pressure reference with functions suitable for modern calibration laboratories.
Technical Highlights
Model: europascal BA4-120B
Device type: Automatic Pneumatic Deadweight Tester
Product family: BA4 Automatic
Configuration: Single piston
Number of pistons: 1
Measuring range: 1 to 120 bar
Measuring range: 100 to 12,000 kPa
Measuring range: 10 to 1,600 psi
Maximum pressure: 120 bar / 12 MPa
Accuracy: 0.01 %
Measurement principle: Piston gauge
Pressure medium: Air
Mass material: Stainless steel
Motorized mass rotation: Integrated
Dynamic piston position visualization: Integrated
Automatic pressure calculation: Integrated
Temperature consideration: Integrated
Atmospheric pressure consideration: Integrated
Humidity consideration: Integrated
Different pressure units: Supported
Calibration result recording: Integrated
Computer data transfer: Integrated
Technical Data
| Feature | europascal BA4-120B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BA4-120B |
| Device type | Automatic Pneumatic Deadweight Tester |
| Product family | BA4 Automatic |
| Measuring range | 1–120 bar |
| Measuring range | 100–12,000 kPa |
| Measuring range | 10–1,600 psi |
| Maximum pressure | 120 bar / 12 MPa |
| Accuracy | 0.01 % |
| Number of pistons | 1 |
| Measurement principle | Piston gauge |
| Pressure medium | Air |
| Mass material | Stainless steel |
| Motorized mass rotation | Integrated |
| Piston position visualization | Dynamic |
| Pressure display | Automatic |
| Environmental measurement | Integrated |
| Automatic pressure calculation | Integrated |
| Multiple pressure units | Supported |
| Result recording | Integrated |
| Computer data transfer | Integrated |
BA4-120B Compared with the BA2-120B
The BA4-120B and BA2-120B cover the same nominal pressure range, but the BA4 provides significantly more integrated automation.
| Feature | BA2-120B | BA4-120B |
|---|---|---|
| Pressure range | 1–120 bar | 1–120 bar |
| Pneumatic operation | Yes | Yes |
| Single piston | Yes | Yes |
| Motorized mass rotation | Optional | Integrated |
| Dynamic piston position | Optional | Integrated |
| Environmental sensors | Optional calculator configuration | Integrated |
| Automatic pressure calculation | Optional | Integrated |
| Result recording | Optional calculator configuration | Integrated |
| Computer data transfer | Optional | Integrated |
| Model accuracy | 0.01 % | 0.01 % |
The BA2-120B is an excellent choice for users looking for a high-performance conventional pneumatic deadweight tester with the possibility of adding automation options.
The BA4-120B, in contrast, is designed as an automatic system from the outset.
For laboratories performing regular or intensive calibration work, the integrated motorization, calculation and data functions of the BA4-120B can provide a significant advantage.
BA4 Automatic Deadweight Tester Series
The europascal Aremeca BA4 automatic pneumatic range consists of three main models:
BA4-60B: 0.5 to 60 bar
BA4-120B: 1 to 120 bar
BA4-200B: 2.5 to 200 bar
All three models combine pneumatic pressure generation with automatic deadweight tester functionality.
The BA4-120B provides the middle measuring range and is particularly suitable for laboratories requiring pneumatic pressure calibration beyond 60 bar without needing the full 200 bar capability of the BA4-200B.
Further europascal Aremeca pressure calibration products can be found here.
Calibration Service from europascal
A high-performance pressure standard such as the europascal BA4-120B Automatic Deadweight Tester requires appropriate calibration and maintenance to ensure reliable long-term performance.
The europascal calibration service provides professional calibration solutions for deadweight testers, piston gauges, pressure gauges, pressure sensors, pressure transmitters and other pressure measuring equipment.
europascal can also assist with the selection, configuration, commissioning, maintenance and service of pressure calibration equipment.
This provides users with a complete solution covering both the pressure standard itself and its long-term metrological support.
Why Choose the europascal BA4-120B?
The europascal BA4-120B Precise Automatic Deadweight Tester combines the proven physical measurement principle of a piston gauge with advanced functions for efficient calibration.
Its pneumatic measuring range from 1 to 120 bar provides broad coverage for laboratory and industrial pressure calibration.
Motorized mass rotation, dynamic piston position visualization and automatic display of the generated pressure simplify operation compared with a conventional manual deadweight tester.
Integrated environmental measurement supports accurate pressure calculations, while result recording and computer data transfer help improve traceability and documentation.
The BA4-120B is therefore particularly suitable for laboratories that perform regular or intensive pneumatic pressure calibrations and want to combine a fundamental pressure standard with modern digital functionality.
Typical Calibration Applications with the europascal BA4-120B
The europascal BA4-120B is particularly suitable for calibrating precision pressure gauges, digital pressure gauges, reference pressure indicators, pressure sensors, pressure transmitters, pressure transducers, pressure switches and pneumatic process measuring instruments.
Typical application areas include professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance, mechanical engineering, plant engineering, research and development and specialized pneumatic pressure applications.
Looking for the europascal BA4-120B or an automatic pneumatic pressure calibration solution? Contact europascal for expert advice, product configuration and calibration services tailored to your requirements.
