Fluke Calibration 6270A is a modular pressure controller and calibrator designed for accurate, reliable and automated pneumatic pressure calibration. With pressure coverage from low differential pressure to 20 MPa (3,000 psi / approximately 200 bar), interchangeable pressure measurement modules and automatic pressure control, the 6270A provides a flexible calibration platform for professional calibration laboratories, pressure sensor manufacturers, quality assurance and industrial metrology.

The modular architecture is one of the key advantages of the Fluke Calibration 6270A. A complete system consists of the 6270A chassis, a pressure control module and one or more interchangeable pressure measurement modules. The system supports PM200, PM500 and PM600 measurement modules, allowing users to select different combinations of pressure range, accuracy and cost within the same instrument.

Depending on the selected measurement module, specifications range from 0.02 % of full scale to 0.01 % of reading over specified portions of the module range. This allows the 6270A to cover everything from conventional pressure gauges and switches to demanding reference pressure measurements.

The system automatically selects the appropriate installed pressure measurement module for the requested pressure, providing excellent rangeability without requiring the operator to manually change reference sensors.

Automatic pressure generation and regulation further simplify calibration. The operator enters the required setpoint and the controller automatically approaches and stabilizes the pressure. For most ranges, dynamic control precision is specified at ±0.001 % of the active range.

At europascal, we provide professional pressure calibration solutions ranging from portable calibrators and reference pressure gauges to modular pressure controllers, piston gauges and complete automated calibration systems.

For professional calibration and metrological traceability of pressure controllers, pressure modules and pressure measuring instruments, use the europascal Calibration Service.

Your Benefits at a Glance

• Modular pneumatic pressure controller and calibrator

• Pressure coverage up to 20 MPa

• Maximum pressure up to 3,000 psi

• Approximately 200 bar maximum pressure

• Coverage from low differential pressure

• Automatic pressure generation

• Automatic pressure regulation

• Modular pressure measurement architecture

• PM200 Pressure Measurement Modules

• PM500 Pressure Measurement Modules

• PM600 Pressure Measurement Modules

• Different accuracy classes in one chassis

• Measurement specifications down to 0.01 % of reading

• PM200 specifications of 0.02 % FS

• Dynamic control precision down to ±0.001 % of range

• Automatic module selection

• Easy front-panel module replacement

• Expandable pressure ranges

• Optional Contamination Prevention System

• Optional barometric reference module

• Gauge pressure measurement

• Absolute pressure capability with suitable configuration

• Pressure switch testing

• IEEE-488.2 interface

• Ethernet interface

• RS-232 interface

• USB interface

• Supports interconnection of multiple systems

• 19-inch rack installation

• Designed for automated calibration

• Suitable for calibration laboratories

• Suitable for pressure sensor production

Ideal for Demanding Calibration Applications

The Fluke Calibration 6270A was developed for users who require both accurate pressure measurement and automatic pressure control over a wide range.

Typical applications include:

• Accredited calibration laboratories

• Factory calibration laboratories

• Pressure sensor manufacturing

• Pressure transmitter calibration

• Digital pressure gauge calibration

• Mechanical pressure gauge calibration

• Pressure switch testing

• Pressure transducer calibration

• Production testing

• Quality assurance

• Research and development

• Automated calibration systems

• Pressure metrology

Its modular architecture allows a single 6270A system to replace several fixed-range pressure controllers in many applications.

Pressure Ranges up to 3,000 psi

The Fluke Calibration 6270A covers pressure ranges from low differential pressure up to:

20 MPa

or:

3,000 psi

which corresponds to approximately:

200 bar

The actual usable pressure range and measurement performance depend on the installed pressure measurement modules.

This modular approach enables the controller to be configured specifically for the pressure workload of the laboratory.

Low-pressure modules can be combined with higher-pressure modules in the same chassis, allowing one system to cover a broad range of pressure instruments.

Modular Pressure Measurement System

A complete Fluke Calibration 6270A system consists of three fundamental components:

• 6270A chassis

• PCM pressure control module

• One or more pressure measurement modules

The measurement modules are installed from the front of the instrument.

This design provides a significant advantage for laboratories because pressure ranges can be added or changed without replacing the complete pressure controller.

If the laboratory’s calibration workload changes, an additional measurement module can be installed to expand the system.

PM200 Pressure Measurement Modules

The PM200 series provides an economical solution for routine pressure calibration.

PM200 modules have a total one-year measurement uncertainty specification of:

0.02 % of full scale

These modules are particularly suitable for calibrating or testing:

• Mechanical pressure gauges

• Digital pressure gauges

• Pressure switches

• Lower-accuracy pressure transmitters

• Industrial pressure sensors

Their rugged silicon pressure sensor design also supports fast pressure control.

PM200 modules provide an attractive combination of performance and cost for routine calibration workloads.

PM500 Pressure Measurement Modules

The PM500 family provides an intermediate performance level within the 6270A platform.

These modules are designed for applications requiring improved measurement performance while maintaining an economical modular configuration.

The availability of PM200, PM500 and PM600 modules allows users to configure different performance levels within one chassis.

For example, a laboratory may use a higher-performance module in its most demanding reference range while using more economical modules for routine industrial pressure calibration.

PM600 Pressure Measurement Modules

For demanding pressure calibration applications, the PM600 series provides the highest performance level available for the Fluke Calibration 6270A.

PM600 modules provide total one-year measurement uncertainty specifications down to:

0.01 % of reading

over the specified portion of the module range.

This percent-of-reading performance significantly improves rangeability compared with a conventional full-scale accuracy specification.

PM600 modules are therefore particularly useful for:

• High-accuracy pressure gauges

• Reference pressure instruments

• Precision pressure transmitters

• Pressure sensor characterization

• Calibration laboratory reference applications

Different Accuracy Classes in One System

One of the most useful features of the Fluke Calibration 6270A is the ability to combine different measurement module families within the same chassis.

Not every pressure range in a laboratory requires the same level of accuracy.

A high-performance PM600 module can therefore be installed for the pressure range where minimum measurement uncertainty is required, while PM200 or PM500 modules can be used for less demanding ranges.

This allows the system to be optimized for both performance and investment cost.

Automatic Module Selection

When several pressure measurement modules are installed, the Fluke Calibration 6270A can automatically select the appropriate module for the requested pressure.

The operator does not need to manually reconnect different reference sensors for each pressure range.

This simplifies operation and reduces the risk of selecting an inappropriate pressure range.

Automatic module selection is especially useful in calibration sequences covering a wide pressure span.

Easy Expansion

Calibration requirements can change over time.

The modular design of the Fluke Calibration 6270A allows additional pressure measurement modules to be installed when new pressure ranges or accuracy requirements arise.

A new module can be inserted through the front panel without changing the external pressure connections.

This means the system can evolve with the calibration workload.

Instead of purchasing a completely new pressure controller, laboratories can expand the existing 6270A configuration.

Automatic Pressure Control

The Fluke Calibration 6270A automatically generates and controls pneumatic pressure.

The operator selects the desired setpoint and the controller regulates the pressure to the target value.

This provides a major advantage compared with manual pressure calibration using hand pumps and fine-adjustment valves.

Automatic control reduces operator workload and improves consistency between individual calibration points.

It is especially useful for multipoint calibrations involving increasing and decreasing pressure sequences.

Excellent Control Precision

For most measurement ranges, the Fluke Calibration 6270A provides dynamic control precision of:

±0.001 % of the active range

Special specifications apply to certain very low-pressure ranges.

Because control precision is based on the active range rather than simply the maximum pressure capability of the entire instrument, the modular architecture provides excellent pressure stability across a broad workload.

The pressure supply should be configured according to Fluke’s requirements to achieve the specified control performance.

Calibration of Pressure Gauges

The Fluke Calibration 6270A is ideal for automatic calibration of mechanical and digital pressure gauges.

The controller generates the required reference pressure and automatically stabilizes at the selected calibration point.

The indication of the device under test can then be compared with the reference pressure measured by the active pressure module.

Several increasing and decreasing pressure points can be generated.

Depending on the calibration procedure, this enables characteristics such as:

• Indication deviation

• Repeatability

• Hysteresis

• Zero deviation

to be evaluated.

Calibration of Pressure Transmitters and Sensors

Pressure transmitters, transducers and sensors can also be calibrated efficiently using the Fluke Calibration 6270A.

The controller generates and measures the reference pressure while appropriate additional electrical equipment measures the output of the device under test.

Typical sensor outputs include:

• 4–20 mA

• DC voltage

• Digital signals

The automatic pressure control of the 6270A makes it particularly useful for sensor characterization and repetitive production testing.

Pressure Switch Testing

The Fluke Calibration 6270A includes a dedicated pressure switch test connection.

This enables pressure switches to be tested as part of an automated pressure calibration procedure.

The pressure can be increased and decreased while the system monitors the electrical switching event.

This allows switching pressure and reset pressure to be determined.

The difference between these values can then be used to evaluate switching hysteresis.

Optional Contamination Prevention System

Contamination is an important issue when calibrating pressure devices.

Devices under test may contain residual oil, water, particulates or other contaminants.

If these materials enter a precision pressure controller, they can contaminate valves, manifolds and measurement modules.

The Fluke Calibration 6270A can therefore be equipped with an optional Contamination Prevention System.

This system helps prevent contaminants from entering the pressure controller.

It is particularly useful in calibration laboratories where devices from different industrial environments are regularly connected to the same pressure standard.

Optional Barometric Reference

An optional BRM600 Barometric Reference Module is available for the Fluke Calibration 6270A.

The module covers atmospheric pressure and can support conversion between gauge and absolute pressure measurements when used with suitable measurement modules.

This increases the flexibility of the system for laboratories that calibrate both gauge and absolute pressure instruments.

The barometric reference module is installed within the modular 6270A architecture.

Clean Gas Pressure Medium

The Fluke Calibration 6270A is a pneumatic pressure controller.

Fluke specifies clean, dry nitrogen or air as the pressure supply medium.

Industrial-grade nitrogen with a purity of at least 99.5 % can be used.

The gas supply must meet Fluke’s requirements for:

• Particulate contamination

• Moisture content

• Hydrocarbon content

Using clean pressure media helps protect the internal control components and measurement modules.

Vacuum Operation

For operation near or below atmospheric pressure, an appropriate external vacuum supply is required.

The Fluke Calibration 6270A can therefore be configured for applications extending from low absolute pressure through positive gauge pressure.

The required vacuum system should be selected according to the desired pressure range and test volume.

This capability makes the system suitable for a broad range of pneumatic calibration applications.

Connectivity for Automated Laboratories

The Fluke Calibration 6270A provides several standard communication interfaces:

• IEEE-488.2

• Ethernet

• RS-232

• USB

These interfaces allow the pressure controller to be integrated into automated calibration and production test systems.

Computer-controlled calibration can automatically:

• Set pressure points

• Monitor pressure

• Wait for stability

• Record measurement data

• Move to the next calibration point

This can significantly improve efficiency for repetitive calibration procedures.

Multiple System Connection

The Fluke 6270A also supports interconnection of:

two or three systems

This allows the pressure capability of several systems to be combined for specialized applications.

Such configurations can be useful when extremely broad pressure range coverage or specialized multi-system arrangements are required.

Easy Maintenance

The modular design of the Fluke Calibration 6270A was developed not only for flexibility but also for serviceability.

Measurement and control modules are accessible from the front panel.

If a measurement module requires calibration or service, it can be removed without dismantling the complete pressure system.

This can reduce downtime compared with traditional pressure controllers where the reference sensor is permanently integrated into the instrument.

The removable pressure manifold also simplifies maintenance if pressure port threads become damaged.

19-Inch Rack Integration

The Fluke Calibration 6270A can be used as a benchtop instrument or integrated into a standard laboratory rack.

The chassis occupies:

3U in a 19-inch rack

This makes the controller suitable for:

• Automated calibration systems

• Production test installations

• Laboratory measurement racks

• Pressure sensor manufacturing systems

• Research facilities

Technical Highlights

The Fluke Calibration 6270A combines modular pressure measurement with accurate automatic pressure control:

• Pneumatic pressure controller and calibrator

• Pressure range up to 20 MPa

• Maximum pressure up to 3,000 psi

• Approximately 200 bar maximum pressure

• Low differential pressure capability

• PM200 measurement modules

• PM500 measurement modules

• PM600 measurement modules

• Specifications from 0.02 % FS

• Performance down to 0.01 % of reading

• Dynamic control precision down to ±0.001 % of range

• Automatic measurement module selection

• Easy front-panel module installation

• Optional Contamination Prevention System

• Optional barometric reference module

• Pressure switch test capability

• IEEE-488.2

• Ethernet

• RS-232

• USB

• Multi-system connection

• 3U 19-inch rack capability

• ISO/IEC 17025 accredited calibration

• Designed for automated pressure calibration

Technical Specifications

Why Choose the Fluke Calibration 6270A?

The Fluke Calibration 6270A provides an exceptionally flexible solution for laboratories that need to calibrate a broad range of pneumatic pressure instruments.

Its modular architecture is the central advantage.

PM200, PM500 and PM600 measurement modules can be combined within the same chassis, allowing the system to be optimized for pressure range, measurement performance and investment cost.

Pressure coverage extends from low differential pressure to 20 MPa, 3,000 psi or approximately 200 bar, covering the requirements of a large proportion of pneumatic pressure gauges, transmitters, sensors and switches.

Measurement specifications range from 0.02 % FS for economical PM200 configurations to 0.01 % of reading for high-performance configurations.

Automatic pressure generation and regulation reduce the amount of manual work required for multipoint calibration. Dynamic control precision down to ±0.001 % of the active range provides stable pressure for demanding measurements.

The optional Contamination Prevention System helps protect the controller when devices under test may contain residual liquids or particulates.

IEEE-488.2, Ethernet, RS-232 and USB interfaces make the 6270A suitable for both standalone laboratory use and fully automated calibration systems.

Its front-accessible measurement and control modules also simplify maintenance and future expansion.

For calibration laboratories, pressure sensor manufacturers and quality assurance departments requiring a flexible automatic pressure calibration platform, the Fluke Calibration 6270A provides an excellent combination of modularity, performance and serviceability.

At europascal, we can assist you in selecting the appropriate 6270A chassis, PM200, PM500 or PM600 measurement modules, pressure ranges, Contamination Prevention System and accessories for your individual calibration requirements.

For professional calibration and metrological traceability of pressure controllers, pressure modules, pressure gauges and other pressure measuring equipment, use the europascal Calibration Service.

Discover more Fluke Calibration products here.

Manufacturer information about the Fluke Calibration 6270A is available on the official Fluke Calibration 6270A product page.

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