Fluke Calibration RUSKA 7615 is a powerful hydraulic pressure controller and calibrator designed for automated high-pressure calibration, testing and pressure cycling applications. With pressure ranges up to 40,000 psi (275 MPa / 2,750 bar), fast automatic pressure control and measurement precision down to 0.01 % of range, the RUSKA 7615 provides a specialized solution for demanding high-pressure laboratories, sensor manufacturers and automated production test systems.

The RUSKA 7615 combines pulse-width modulated valve technology with a pneumatic-to-hydraulic intensifier. This design enables automatic generation and control of extremely high hydraulic pressures without the repetitive manual operation associated with conventional high-pressure hand pumps and deadweight testers.

Depending on the configuration, pressure ranges of 6,000, 10,000, 15,000, 20,000, 30,000 and 40,000 psi are available. The optional multi-range architecture can provide up to six pressure ranges in one instrument, significantly improving usable rangeability for laboratories covering different high-pressure applications.

For ranges up to 20,000 psi (140 MPa), measurement precision is specified at 0.01 % of range. Higher ranges provide measurement precision of 0.02 % of range.

The Fluke Calibration RUSKA 7615 is especially valuable for automated pressure calibration and cyclic or fatigue testing. Pressure can be repeatedly cycled between defined high and low pressure values, while pressure change rates and dwell times can be configured according to the test requirements.

At europascal, we provide professional pressure calibration solutions covering low pressure through ultra-high-pressure applications. Our portfolio includes automated pressure controllers, piston gauges, deadweight testers, digital reference pressure instruments and complete calibration systems.

For professional calibration and metrological traceability of pressure controllers, pressure sensors and high-pressure measuring equipment, use the europascal Calibration Service.

Your Benefits at a Glance

• Automatic hydraulic high-pressure controller and calibrator

• Pressure ranges up to 40,000 psi

• Maximum pressure up to 275 MPa

• Maximum pressure up to approximately 2,750 bar

• Six available full-scale pressure ranges

• Optional multi-range configurations

• Up to six pressure ranges in one instrument

• Measurement precision down to 0.01 % of range

• High-speed automatic pressure control

• Pneumatic-to-hydraulic pressure intensifier

• Pulse-width modulated valve technology

• Automated pressure calibration

• Automatic cyclic pressure testing

• Fatigue testing capability

• Configurable pressure cycling

• Configurable pressure change rate

• Configurable dwell times

• Multiple compatible liquid pressure media

• Water can be used as a pressure medium

• IEEE-488 interface

• RS-232 interface

• SCPI-compatible remote commands

• Suitable for laboratory automation

• Suitable for pressure sensor manufacturing

• Suitable for high-pressure transducer testing

• Suitable for automotive applications

• Suitable for aerospace applications

• Suitable for oil and gas applications

• Benchtop or 19-inch rack installation

Ideal for Demanding High-Pressure Calibration Applications

The Fluke Calibration RUSKA 7615 was developed for applications where extremely high hydraulic pressure must be generated, measured and controlled automatically.

Traditional high-pressure calibration often involves manual hydraulic pumps, variable-volume pressure generators or piston gauges. While these methods remain valuable for many applications, they require significant operator involvement when multiple pressure points or repetitive pressure cycles are needed.

The RUSKA 7615 automates this process.

Typical applications include:

• High-pressure calibration laboratories

• Pressure sensor manufacturing

• Pressure transducer manufacturing

• Automated production testing

• Automotive component testing

• Diesel fuel rail sensor testing

• Hydraulic braking system testing

• Aerospace pressure testing

• Oil and gas instrumentation

• Downhole pressure sensor testing

• Research and development

• Pressure fatigue testing

• Pressure cycle testing

• High-pressure characterization

• Quality assurance

The combination of very high pressure capability and automatic control makes the 7615 particularly useful for repetitive production and qualification testing.

Pressure Ranges up to 40,000 psi

The Fluke Calibration RUSKA 7615 is available with several full-scale pressure ranges.

Available configurations include:

6,000 psi / 41.5 MPa

10,000 psi / 70 MPa

15,000 psi / 103.5 MPa

20,000 psi / 140 MPa

30,000 psi / 207 MPa

40,000 psi / 275 MPa

The maximum pressure therefore corresponds to approximately:

2,750 bar

This extremely broad high-pressure capability makes the RUSKA 7615 suitable for applications that exceed the pressure range of conventional pneumatic pressure controllers.

Pneumatic-to-Hydraulic Pressure Generation

One of the key technologies behind the Fluke Calibration RUSKA 7615 is its pneumatic-to-hydraulic intensifier.

The system uses an industrial compressed air supply to drive the hydraulic pressure generation mechanism.

A supply of clean, dry compressed air at approximately:

100 to 110 psig

or:

6.9 to 7.5 bar

is required.

The pneumatic drive is converted into much higher hydraulic test pressure by the integrated intensifier.

This approach allows pressures up to 275 MPa to be generated automatically without requiring the operator to manually operate a high-pressure hydraulic pump.

Pulse-Width Modulated Valve Technology

The Fluke Calibration RUSKA 7615 uses pulse-width modulated valve technology for pressure control.

This technology, also associated with Fluke Calibration’s RUSKA pressure controller designs, enables rapid and precise control of the hydraulic pressure.

The controller automatically adjusts the pressure toward the selected setpoint.

This provides a major productivity advantage compared with manual high-pressure generation, particularly when calibrations involve numerous pressure points or repeated pressure cycles.

Measurement Precision Down to 0.01 %

The measurement performance of the Fluke Calibration RUSKA 7615 depends on the selected pressure range.

For ranges up to:

20,000 psi / 140 MPa

measurement precision is specified at:

0.01 % of range

For ranges above 140 MPa, measurement precision is specified at:

0.02 % of range

This performance allows the controller to be used for demanding industrial high-pressure calibration and test applications.

The required measurement uncertainty and test uncertainty ratio should always be evaluated according to the specification of the device under test and the applicable calibration procedure.

Automatic High-Speed Pressure Control

Generating very high hydraulic pressure is only one part of the calibration process.

The pressure must also be controlled quickly and reliably.

The Fluke Calibration RUSKA 7615 was specifically developed for high-speed automated high-pressure control.

The system can approach pressure setpoints automatically, eliminating much of the manual adjustment normally associated with hydraulic calibration systems.

Fast automatic control is particularly valuable in production environments where calibration throughput directly affects operating costs.

Multi-Range Capability

An important feature of the RUSKA 7615 is its optional multi-range architecture.

Individual transducers can provide three pressure ranges.

With a dual-transducer configuration, the instrument can provide up to:

six pressure ranges

within one system.

This improves measurement performance across a broader portion of the overall pressure capability.

Instead of relying exclusively on one very high full-scale range, an appropriate lower range can be selected for lower pressure measurements.

This is particularly valuable because the precision specification is related to the selected range.

Automatic Cyclic Pressure Testing

The Fluke Calibration RUSKA 7615 is not limited to conventional calibration.

It is also designed for automated cyclic and fatigue testing.

In cycle mode, pressure can be repeatedly changed between defined minimum and maximum values.

The user can define parameters such as:

• High pressure point

• Low pressure point

• Number of cycles

• Pressure change rate

• Dwell time

The controller then performs the pressure sequence automatically.

This capability is especially useful for component durability testing and pressure sensor qualification.

Fatigue Testing

High-pressure components can experience thousands or millions of pressure changes during their service life.

Fatigue testing is therefore an important part of product development and validation.

The Fluke Calibration RUSKA 7615 provides automatic pressure cycling capabilities that can be used to expose components to repeated pressure changes.

Typical test objects include:

• Pressure sensors

• Pressure transducers

• Hydraulic components

• Automotive sensors

• Fuel system components

• Brake system components

• Aerospace components

• Industrial pressure instrumentation

Automated pressure cycling reduces operator involvement and improves consistency between individual test cycles.

Sensor Production Testing

High-volume pressure sensor manufacturing is one of the applications for which the RUSKA 7615 is particularly well suited.

Production environments often require sensors to be tested at several defined pressure points.

Manual generation of pressures up to several thousand bar would require considerable operator effort and time.

The automatic control capabilities of the Fluke Calibration RUSKA 7615 enable repeatable test sequences to be performed with significantly less manual intervention.

This can improve throughput while maintaining consistent test conditions.

Automotive Applications

High-pressure technology is increasingly important in automotive applications.

The RUSKA 7615 can be used for testing components such as:

• Diesel fuel rail pressure sensors

• High-pressure fuel system sensors

• Hydraulic braking components

• Brake pressure sensors

• Pressure transducers

• Other hydraulic components

Modern fuel injection systems operate at very high pressures, making specialized calibration and testing equipment essential.

The pressure capability of the 7615 makes it suitable for many of these demanding applications.

Aerospace Applications

Aerospace systems also use high-pressure hydraulic components.

Typical applications for the Fluke Calibration RUSKA 7615 include testing pressure sensors and components used in:

• Aircraft braking systems

• Hydraulic control systems

• Surface control systems

• Rocket motor instrumentation

• Aerospace test equipment

Automated pressure generation and cycling can support both component development and production quality assurance.

Oil and Gas Applications

Pressure sensors used in oil and gas applications may be exposed to extreme pressures.

Downhole measurement equipment is a typical example.

The Fluke Calibration RUSKA 7615 provides the pressure capability required for testing and calibrating many high-pressure sensors used in these environments.

Automated control also allows sensor behavior to be evaluated over multiple pressure points and repeated pressure cycles.

Flexible Hydraulic Pressure Media

One of the notable characteristics of the Fluke Calibration RUSKA 7615 is its compatibility with a wide variety of liquid pressure media.

Depending on the configuration and application, compatible fluids can include:

• Dioctyl sebacate oil

• Silicone oil

• Hydraulic fluids

• Automotive transmission fluid

• Fluorinert fluids

• Water

• Other application-specific liquids

This flexibility is important when the pressure medium must be compatible with the device under test.

The suitability of a particular liquid should always be verified for the specific 7615 configuration and test application before use.

Water as a Pressure Medium

Water can be used as a pressure medium in appropriate RUSKA 7615 configurations.

This can be beneficial when oil contamination of the device under test is undesirable.

Water-based testing can be relevant for specific industrial components, sensors and pressure systems.

The ability to configure the controller for different liquid media provides greater flexibility than systems restricted to a single hydraulic fluid.

Measure Mode and Control Mode

The Fluke Calibration RUSKA 7615 provides two fundamental operating modes.

In Measure Mode, the instrument measures pressure without actively controlling it.

This mode is useful for applications such as:

• Pressure monitoring

• Research measurements

• Sensor testing

• Pressure comparison

In Control Mode, the 7615 simultaneously measures and controls the applied pressure.

Control Mode is typically used for:

• Pressure gauge calibration

• Pressure transducer calibration

• Pressure switch testing

• Production testing

• Automated calibration

This dual functionality allows the instrument to operate as both a pressure measurement system and an automatic controller.

Automated Calibration Systems

The Fluke Calibration RUSKA 7615 provides digital interfaces for integration into automated calibration and test systems.

Interfaces include:

RS-232

and

IEEE-488

Remote commands use the SCPI format.

This allows the controller to communicate with computers and automated test systems.

Automated operation can be particularly valuable for:

• Production calibration

• Sensor characterization

• Pressure cycling

• Research

• Repetitive calibration procedures

• Quality assurance testing

Laboratory Integration

Despite its high-pressure capability, the RUSKA 7615 is designed for integration into professional laboratory environments.

The instrument can be placed on a laboratory bench or installed in a standard:

19-inch EIA instrument rack

using the appropriate rack-mount hardware.

This makes it suitable for both standalone calibration stations and integrated automated test systems.

Technical Highlights

The Fluke Calibration RUSKA 7615 combines automated hydraulic pressure generation with high-speed control and high-pressure measurement:

• Hydraulic pressure controller and calibrator

• Maximum pressure 40,000 psi

• Maximum pressure 275 MPa

• Approximately 2,750 bar maximum pressure

• Six available full-scale ranges

• 6,000 psi range

• 10,000 psi range

• 15,000 psi range

• 20,000 psi range

• 30,000 psi range

• 40,000 psi range

• Precision down to 0.01 % of range

• Automatic high-speed pressure control

• Pneumatic-to-hydraulic intensifier

• Pulse-width modulated valve technology

• Up to six pressure ranges in one instrument

• Automatic cyclic testing

• Fatigue testing capability

• Multiple compatible liquid media

• RS-232 communication

• IEEE-488 communication

• SCPI remote commands

• Benchtop or rack mounting

• Suitable for automated high-pressure calibration

Technical Specifications

Why Choose the Fluke Calibration RUSKA 7615?

The Fluke Calibration RUSKA 7615 provides a specialized solution for automated hydraulic pressure calibration and testing at pressures that cannot be reached by most conventional pneumatic pressure controllers.

With pressure capability up to 40,000 psi, 275 MPa or approximately 2,750 bar, the system addresses demanding high-pressure applications in calibration laboratories, manufacturing, automotive engineering, aerospace and oil and gas industries.

The integrated pneumatic-to-hydraulic intensifier eliminates much of the manual work traditionally associated with generating extremely high hydraulic pressures.

Pulse-width modulated valve technology provides automatic high-speed pressure control, making the system suitable for both precision calibration and repetitive production testing.

Measurement precision down to 0.01 % of range provides the performance required for demanding high-pressure measurements.

Optional multi-range configurations further improve flexibility. Up to six pressure ranges can be incorporated into a single instrument, allowing a broader high-pressure workload to be covered efficiently.

Automatic cycle and fatigue testing functions provide another important advantage. Pressure sensors and components can be repeatedly exposed to defined high and low pressure values without continuous manual intervention.

Compatibility with different liquid pressure media, including water in suitable configurations, allows the system to be adapted to the requirements of different devices under test.

RS-232 and IEEE-488 interfaces with SCPI-compatible commands enable integration into automated calibration and production test systems.

For laboratories and manufacturers requiring automated pressure generation at pressures up to several thousand bar, the RUSKA 7615 provides a proven high-pressure calibration platform.

At europascal, we can assist you with existing RUSKA 7615 systems as well as with selecting suitable current pressure calibration equipment for your individual high-pressure requirements.

For professional calibration and metrological traceability of high-pressure controllers, pressure sensors, transmitters and other pressure measuring equipment, use the europascal Calibration Service.

Discover more Fluke Calibration products here.

Manufacturer information and technical documentation for the Fluke Calibration RUSKA 7615 are available from Fluke Calibration.

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