The europascal BA2-120B Pneumatic Deadweight Tester is a high-performance pressure standard designed for precise pneumatic pressure calibration from 1 to 120 bar. With an accuracy of 0.01 % of scale, a precision single piston-cylinder system and a typical piston area of 39.2280 mm², the BA2-120B provides reliable reference pressures for professional calibration laboratories, industrial metrology, quality assurance, research and development.
The measuring range corresponds to 100 to 12,000 kPa or 10 to 1,600 psi, providing extensive coverage for pneumatic pressure measuring instruments up to 120 bar.
As part of the europascal Aremeca BA2 High Performance series, the BA2-120B combines the fundamental physical measurement principle of a piston gauge with robust mechanical construction and flexible configuration options. One precision piston-cylinder assembly covers the complete specified pressure range.
The pneumatic operating principle makes the BA2-120B particularly suitable for pressure gauges, sensors, transmitters and other devices that should not be exposed to hydraulic calibration oil. The system operates with clean and dry compressed air or nitrogen as the pressure medium.
europascal supports professional users with the selection, configuration, maintenance and calibration of precision pressure standards. The europascal calibration service provides professional calibration solutions for deadweight testers, pressure gauges, sensors, transmitters and other pressure measuring equipment.
Your Benefits at a Glance
The europascal BA2-120B Pneumatic Deadweight Tester combines high accuracy with an extended pneumatic pressure range up to 120 bar.
Key benefits include:
- High-performance 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
- Accuracy of 0.01 % of scale
- Precision single piston-cylinder system
- One piston for the complete measuring range
- Typical piston area of 39.2280 mm²
- Treated steel piston
- Treated steel cylinder
- CA2-200B generator base
- Clean and dry compressed air or nitrogen as pressure medium
- Integrated piston lubrication system
- Approx. 22 kg device weight without masses
- Different pressure units available
- Standard or customer-specific local gravity
- Optional intermediate weight sets
- Optional additional principal weight sets
- Optional motorization
- Optional piston position visualization
- Optional automatic pressure calculation
- Optional computer data transfer
- Optional oxygen degreasing
- Professional calibration and service from europascal
The combination of pneumatic operation, a measuring range up to 120 bar and a high-performance piston gauge principle makes the BA2-120B particularly suitable for demanding calibration laboratories.
Ideal for Demanding Calibration Applications
The europascal BA2-120B is designed for professional pressure calibration applications requiring accurately generated pneumatic reference pressures.
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 extended range up to 120 bar is particularly valuable for laboratories that want to maintain pneumatic calibration rather than switching to hydraulic pressure generation at medium pressure levels.
This enables pressure measuring instruments designed for gas applications to remain free from hydraulic calibration media.
Pressure Range from 1 to 120 bar
The europascal BA2-120B 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
This pressure range positions the BA2-120B between the BA2-60B and BA2-200B within the europascal Aremeca BA2 High Performance series.
For laboratories requiring pneumatic calibration beyond 60 bar, the BA2-120B provides a substantial extension of the available pressure range while maintaining a single-piston configuration.
Accuracy of 0.01 %
The europascal BA2-120B Pneumatic Deadweight Tester provides a specified accuracy of:
0.01 % of scale
The manufacturer additionally specifies the uncertainty of the pressure measured by the deadweight tester as:
0.0010 + (1 × 10⁻⁴ × P)
where P is expressed in bar.
The complete measurement uncertainty of a calibration depends on additional influence quantities and the specific configuration of the system.
Relevant contributions can include:
- Calibration of the masses
- Effective piston-cylinder area
- Local gravitational acceleration
- Air buoyancy
- Piston-cylinder temperature
- Atmospheric conditions
- Pressure deformation
- Pressure head differences
- Repeatability
- Resolution of the device under test
These influence quantities should be considered when establishing the complete measurement uncertainty budget for professional or accredited calibration procedures.
Fundamental Piston Gauge Measurement Principle
The europascal BA2-120B operates according to the fundamental physical principle of a piston gauge.
A precisely defined force acts on a piston with a characterized effective area.
The basic pressure relationship is:
p = F / A
where:
p = generated pressure
F = force acting on the piston
A = effective piston area
The gravitational force produced by calibrated masses can be expressed as:
F = m × g
where:
m = applied mass
g = gravitational acceleration
Therefore, the simplified pressure equation becomes:
p = (m × g) / A
In precision pressure metrology, additional corrections are applied according to the calibration data, environmental conditions and installation location.
This physically based measurement principle makes the BA2-120B an excellent reference standard for professional pneumatic pressure calibration.
Precision Single-Piston Design
The europascal BA2-120B uses one precision piston-cylinder system across the complete measuring range from 1 to 120 bar.
The typical piston area is:
39.2280 mm²
The piston and cylinder are manufactured from treated steel.
The piston-cylinder assembly forms the central metrological component of the deadweight tester. Its effective area, together with the force generated by the calibrated masses, determines the reference pressure.
Using a single piston across the entire range simplifies operation and avoids the need to change piston-cylinder systems during regular calibration work.
Pneumatic Operation with Air or Nitrogen
The europascal BA2-120B is a pneumatic deadweight tester.
According to the manufacturer, the pressure medium can be:
clean and dry compressed air
or:
nitrogen
This provides an important advantage over hydraulic pressure generation when devices under test must remain free from calibration oil.
The pneumatic principle is particularly suitable for sensors, transmitters and pressure gauges intended for gas applications.
The system also incorporates piston lubrication using H15 oil with a specified density of approximately:
845 kg/m³
The oil is used for the piston lubrication system. The actual pressure medium remains pneumatic.
Flexible Weight Sets and Pressure Units
The BA2-120B can be configured with principal weight sets for different pressure units.
Depending on laboratory requirements, the selected unit can include:
bar
psi
kPa
and other available units.
Intermediate weight sets and additional principal weight sets for different units are available as options.
This allows the europascal BA2-120B to be adapted to different industries, calibration procedures and customer requirements.
The masses are an essential component of the piston gauge measurement principle because they generate the gravitational force required to establish the reference pressure.
Standard Gravity and Local Gravity
The pressure generated by a deadweight tester depends directly on gravitational acceleration.
The conventional standard value is:
g = 9.80665 m/s²
However, actual gravitational acceleration varies according to geographic location.
For precision pressure measurements, the resulting difference in force can be significant enough to require consideration.
The BA2-120B can therefore be configured according to standard gravity or a customer-specified local gravity value.
This enables the pressure standard to be optimized for its actual installation location.
Technical Highlights
Model: europascal BA2-120B
Device type: Pneumatic Deadweight Tester
Product family: BA2 High Performance
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 % of scale
Measurement principle: Piston gauge
Pressure medium: Clean and dry compressed air or nitrogen
Piston lubrication: H15 oil
Lubricant density: Approx. 845 kg/m³
Generator base: CA2-200B
Typical piston area: 39.2280 mm²
Piston material: Treated steel
Cylinder material: Treated steel
Device weight without masses: Approx. 22 kg
Standard gravity: 9.80665 m/s²
Local gravity: Customer-specific value available
Technical Data
| Feature | europascal BA2-120B |
|---|---|
| Manufacturer | europascal Aremeca |
| Model | BA2-120B |
| Device type | Pneumatic Deadweight Tester |
| Product family | BA2 High Performance |
| Configuration | Single piston |
| Number of pistons | 1 |
| 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 % of scale |
| Pressure uncertainty | 0.0010 + (1 × 10⁻⁴ × P), P in bar |
| Measurement principle | Piston gauge |
| Pressure medium | Clean and dry compressed air or nitrogen |
| Generator base | CA2-200B |
| Typical piston area | 39.2280 mm² |
| Piston material | Treated steel |
| Cylinder material | Treated steel |
| Piston lubrication | H15 oil |
| Lubricant density | Approx. 845 kg/m³ |
| Device weight without masses | Approx. 22 kg |
| Standard gravity | 9.80665 m/s² |
| Special gravity | Customer-specific value available |
| Motorization | Optional |
| Piston position visualization | Optional |
| Automatic pressure calculation | Optional |
| Data transfer | Optional |
| Oxygen degreasing | Optional |
Optional Motorization and Piston Position Visualization
The europascal BA2-120B can be equipped with option OP0004.
This option provides motorized rotation of the masses and visualization of the piston position using indicator lights.
Correct piston rotation and position are important factors during deadweight tester operation.
Motorization reduces manual intervention during repetitive calibration procedures, while piston position visualization provides the operator with a clear indication of the operating condition.
This can improve convenience and efficiency during routine laboratory calibration.
Optional Automatic Pressure Calculation
The BA2-120B can also be equipped with option OP0301 for laboratories requiring additional digital functionality.
The calculator module provides dynamic visualization of the piston position and automatic display of the generated pressure.
The calculation can consider important environmental quantities such as:
- Temperature
- Atmospheric pressure
- Humidity
Data can also be transferred to a computer.
This allows the fundamental physical measurement principle of a deadweight tester to be combined with modern calculation and documentation functions.
The option is particularly useful for laboratories seeking increased automation, traceability and efficient calibration documentation.
BA2-120B in the BA2 High Performance Series
The europascal Aremeca BA2 series covers a broad range of pneumatic pressure calibration applications.
Available models include:
BA2-1VB: vacuum range
BA2-1B: up to 1 bar
BA2-10B: 0.15 to 10 bar
BA2-30B: 0.1 to 30 bar
BA2-60B: 0.5 to 60 bar
BA2-120B: 1 to 120 bar
BA2-200B: 2.5 to 200 bar
The BA2-120B therefore provides a high-pressure pneumatic solution within the BA2 series while retaining a single-piston design.
Discover further europascal Aremeca products here.
BA2-120B Compared with BA2-60B and BA2-200B
The BA2-120B is positioned between the BA2-60B and BA2-200B.
| Model | Pistons | Measuring Range |
|---|---|---|
| BA2-60B | 1 | 0.5–60 bar |
| BA2-120B | 1 | 1–120 bar |
| BA2-200B | 1 | 2.5–200 bar |
The BA2-120B doubles the maximum pressure capability of the BA2-60B while still providing pneumatic pressure generation.
Compared with the BA2-200B, its lower starting pressure of 1 bar can be advantageous for laboratories requiring greater coverage at lower pressures while still reaching 120 bar.
Calibration Service from europascal
As a precision physical pressure standard, the europascal BA2-120B Pneumatic Deadweight Tester should be regularly calibrated and maintained to ensure reliable metrological performance.
The europascal calibration service provides professional calibration solutions for deadweight testers, piston gauges, pressure gauges, reference pressure instruments, pressure sensors and pressure transmitters.
europascal also supports customers with the selection of suitable pressure standards, pressure ranges, mass sets, pressure units and optional functions.
The BA2-120B is supplied with a factory calibration certificate traceable to national standards. An accredited calibration certificate is available as an option.
The manufacturer recommends calibration approximately every two years depending on use.
Why Choose the europascal BA2-120B?
The europascal BA2-120B Precise Pneumatic Deadweight Tester combines an extended measuring range from 1 to 120 bar with an accuracy of 0.01 % of scale and the proven physical reference principle of a piston gauge.
Its single-piston configuration provides straightforward operation across the complete measuring range, while the typical piston area of 39.2280 mm² and CA2-200B generator base provide a robust foundation for professional pressure calibration.
Operation with clean and dry compressed air or nitrogen makes the BA2-120B particularly attractive for pressure measuring instruments that should remain free from hydraulic calibration media.
Optional motorization, piston position visualization, automatic pressure calculation and computer data transfer allow the instrument to be adapted to advanced calibration workflows.
Combined with professional advice, calibration and service from europascal, the BA2-120B provides an excellent solution for demanding pneumatic pressure calibration up to 120 bar.
Typical Calibration Applications with the europascal BA2-120B
The europascal BA2-120B is particularly suitable for calibrating precision pressure gauges, digital pressure gauges, reference pressure instruments, 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 other applications requiring accurate pneumatic reference pressures up to 120 bar.
Looking for the europascal BA2-120B or a professional pneumatic pressure calibration solution? Contact europascal for expert advice, product configuration and calibration options tailored to your requirements.
