Fluke RUSKA 2482 User Manual
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Fluke RUSKA 2482 User Manual

Fluke RUSKA 2482 User Manual

Differential pressure piston gauge
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Via Acquanera, 29
22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
info@calpower.it
www.calpower.it
PN 3966525
November 2010
© 2010 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
RUSKA 2482
Differential Pressure Piston Gauge
Users Manual

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Summary of Contents for Fluke RUSKA 2482

  • Page 1 RUSKA 2482 Differential Pressure Piston Gauge Users Manual PN 3966525 November 2010 © 2010 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price.

  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction......................1 How to Contact Fluke ..................1 Safety Information ..................... 1 Compressed Gas .................... 1 Heavy Weights ....................1 Personal Protective Equipment..............2 Symbols Used in this Manual ................2 General Information................... 2 NVLAP Accredited Calibrations ............... 3 Theory of Operation...................
  • Page 4 RUSKA 2482 Users Manual Operation ......................22 Power On Sequence..................22 Differential Measurements Using Dioctyl Sebacate (DOS) Oil....23 PID Selection .................... 23 Connecting the Device Under Test (DUT) ..........23 Generate Differential Pressures — Hydraulic........... 23 Techniques for Extended Calibrations ............25 Differential Measurements Using Compressed Gas........
  • Page 5 List of Tables Table Title Page Symbols........................2 Oil and Gas Isolation Valves - States..............26 Reservoir/Test Port Assemblies and Screw Press Assembly - Parts List....31...
  • Page 6 RUSKA 2482 Users Manual...
  • Page 7 RUSKA 2482 - Drivers Selection ................10 Software Window - Typical Setup ................. 10 RUSKA 2482 - WinPrompt® - Typical Setup............12 RUSKA 2482 Deadweight Controller - Current Status Window......12 File Menu ....................... 13 Communications Menu ..................14 Comm Port Selection ..................... 14 Display Resolution Selection .................
  • Page 8 RUSKA 2482 Users Manual...

  • Page 9: Introduction

    This manual covers the operation and maintenance of the RUSKA 2482 Differential Pressure Piston Gauge. How to Contact Fluke To order accessories, receive operating assistance, or get the location of the nearest Fluke distributor or Service Center, call: • Technical Support USA: 1-800-99-FLUKE (1-800-993-5853) •...

  • Page 10: Personal Protective Equipment

    A single piston design eliminates many of the difficulties associated with dual piston differential systems. The RUSKA 2482 is a hydraulic gauge that allows for gas calibrations through the gas/oil interface chambers. The pressure control system uses feedback from a sensitive load cell to maintain the system null condition.

  • Page 11: Nvlap Accredited Calibrations

    A NVLAP accredited calibration certificate is provided standard with the RUSKA 2482. Theory of Operation An overview of the RUSKA 2482 system is shown in Figure 2. During the initial configuration of the system, the Balance is internally aligned and zeroed. With only the...
  • Page 12 RUSKA 2482 Users Manual Mass Carrier Thermal Adust Device Line Pressure Piston Isolation Under Sensor Valve Test Thermal Adjust Balance -Coarse Tare- Balance Rd Line Pressure Display Error Fine Tare SetPoint -nudge- Software 0.04g = 0.005mbar = 1ppm gms03.eps Figure 2. System Operation Overview With the Oil Isolation Valve open, there is zero differential across the Piston.

  • Page 13: Installation

    Installation Minimum Requirements To install the RUSKA 2482, the following are required: • A sturdy workbench able to safely support the additional weight of the RUSKA 2482 with accessories, approximately 45 kg (100 lbs) •...

  • Page 14: Mechanical Setup

    RUSKA 2482 Users Manual Mechanical Setup 1. Remove the transit clamp and the retaining screw (see Figure 3). Retaining screw gms04.eps Figure 3. Transit Clamp with Retaining Screw 2. Remove the balance transit strap as follows (see Figure 4): a. Remove the three screws that secure the left panel door — two from the rear panel and one from the bottom side panel.
  • Page 15 5. Connect a flexible hose between the Pump Isolation Valve and the High Side Oil Port on the RUSKA 2482 rear panel. Do NOT tighten the rear panel fitting until air has been purged from the line (see Figure 5).

  • Page 16: Gas Mode Setup

    RUSKA 2482 Users Manual Pump Isolation Valve Oil Reservoir Valve gms07.eps Figure 6. Hydraulic Pump 12. Rotate the pump spindle fully clockwise to purge any air from the pump housing, then rotate the spindle fully counterclockwise. Close the Oil Reservoir Valve.

  • Page 17: Electrical Setup

    Figure 8. Power Connection 2. Plug the power adapter cord into a suitable wall outlet. The power lamp on the front panel of the RUSKA 2482 will turn on. 3. Connect the RS-232 communication cable between the instrument and the PC computer.

  • Page 18: Software Setup

    RUSKA 2482 Users Manual Software Setup This section covers the installation of software and the verification that communications with the RUSKA 2482 is established. Refer to the Software section to learn more about software function and application. ® WinPrompt , Revision 3R00 and later, has the RUSKA 2482 driver included.

  • Page 19: Troubleshooting Communication Setup

    Address: Type 41 2. Verify the serial cable is a straight through cable. 3. Verify that the power is applied to the RUSKA 2482 instrument. The LED on the RUSKA 2482 instrument will turn on when power is applied.

  • Page 20: Ruska 2482 Software

    Actual Pressure. gms12.eps Figure 11. RUSKA 2482 - WinPrompt® - Typical Setup A typical setup for the RUSKA 2482 is shown in Figure 11. Above left is the ® WinPrompt window; above right is the chart window, and below right is the...

  • Page 21: Menu Commands

    Differential Pressure Piston Gauge Software Setup The Compensator control loop is turned on and off by these buttons: Button Action No compensation, no heating nor cooling is done. Standby The temperature controllers are being biased to defined presets. The heating is constant and not affected by the Tared Reading. This mode provides increased control distance in one direction by biasing.

  • Page 22: Menu: Communications | Port

    Users Manual Menu: Communications | Port Allows selection of the communication port to which the RUSKA 2482 is connected. The RUSKA 2482 requires RS-232 serial port communications. RUSKA serial port may be directly connected to the PC or connected to the USB port using the RS-232/USB converter cable.

  • Page 23: Menu: Set-Up | Line Pressure Units

    Differential Pressure Piston Gauge Software Setup gms17.bmp Figure 16. Display Resolution Selection Menu: Set-up | Line Pressure Units Selects the units for the Line Pressure displayed in the Main window. gms18.bmp Figure 17. Line Pressure Units Selection Menu: Set-up | Balance Filter Select the Balance Filter to turn on and off.

  • Page 24: Menu: Set-Up | Calibrate | Line

    RUSKA 2482 Users Manual gms19.bmp Figure 18. Balance Filter Selection Menu: Set-up | Calibrate | Line Displays the dialog for calibration of the line pressure transducer. gms20.bmp Figure 19. Calibration Selection...
  • Page 25 Differential Pressure Piston Gauge Software Setup gms21.bmp Figure 20. Calibrate Line Pressure To zero the Line sensor: Set-up → Calibrate → Line 1. Click 2. Release pressure from the line sensor or apply a known low pressure. 3. Enter the Actual pressure. 4.

  • Page 26: Menu: Set-Up | Calibrate | Balance

    The Coefficient File options allow the user to Save and Load all of the calibration and setup of the RUSKA 2482 software. Selecting Save will write the coefficients to a user selected filename. Selecting Load will retrieve the coefficients from a user selected file.

  • Page 27: Menu: Set-Up | Clear Tare

    Differential Pressure Piston Gauge Software Setup Menu: Set-up | Clear Tare The Clear Tare option will remove the effect of taring the balance. The tare value will be set to zero and the Tared Value will show the reading directly from the Balance. Menu: Windows | PID Values Displays the selected medium and the current control coefficients.

  • Page 28: Menu: Windows | Control + Filter

    RUSKA 2482 Users Manual Menu: Windows | Control + Filter Displays the current setpoint, control terms, and the filtering method. Setpoint is the same as in the main window but also allows entering a new value. This also is affected by the nudge buttons on the main window.

  • Page 29: Menu: Windows | Rs-232 Viewer

    Differential Pressure Piston Gauge Software Setup Y Scale defines the total vertical scale in grams, with half of the range above zero, and half below the zero point. Change this value to zoom the graph in or out. Maximum is the highest Tared Reading since Reset Max/Min was clicked. Minimum is the lowest Tared Reading since Reset Max/Min was clicked.

  • Page 30: Operation

    The Internal Balance will perform an automatic internal zero when power is initially applied. When performing a zero, the internal balance will null the mass load applied to the balance. The value of the Tared Reading as displayed by the RUSKA 2482 software, is influenced by the starting condition of the Balance.

  • Page 31: Differential Measurements Using Dioctyl Sebacate (Dos) Oil

    Connect the high pressure test port of the DUT to the HIGH SIDE OIL port of the RUSKA 2482. Connect the low pressure test port of the DUT to the LOW SIDE OIL port. When making these connections remove only one fitting at a time. This will minimize the oil loss while making these connections.
  • Page 32 RUSKA 2482 Users Manual gms29.bmp Figure 28. Activating the Pressure Control Bias 3. With Oil Reservoir Valve closed, and the Oil Isolation Valve in Equalize, rotate the hand pump clockwise to generate the desired line pressure. If barometric line pressure is desired then do not rotate the hand pump.

  • Page 33: Techniques For Extended Calibrations

    Differential Measurements Using Compressed Gas This Section applies when the Test Instrument is tested with compressed gas and is connected to the GAS test ports of the RUSKA 2482. Refer to the specifications for the requirements for the quality of compressed gas.

  • Page 34: Connecting The Device Under Test (Dut)

    Since this is a true oil/gas interface, care is required to insure that oil is not allowed to migrate into the DUT. This is done by keeping positive pressure on the oil. If vent ports are required on the lines between the RUSKA 2482 and the test unit, then place these vent valves near the RUSKA 2482.

  • Page 35: Generate Differential Pressures - Gas

    2975 psi (205 bar). W Caution The High Side Oil Port and Low Side Oil Port of the RUSKA 2482 are not used in this test and must be capped or plugged. Generate Differential Pressures — Gas 1. Verify the High Side Oil Port and Low Side Oil Port are capped or plugged.

  • Page 36: Techniques For Extended Calibrations

    RUSKA 2482 Users Manual Note If the desired differential pressure requires an increment smaller than that available in the mass set then use the function to adjust the setpoint value. The desired differential pressure is achieved when the Tared reading stabilizes to the setpoint value.

  • Page 37: Head Height

    Differential Pressure Piston Gauge Operation Head Height Since the RUSKA 2482 is a differential unit with the same media on both ports the issue of head height is negligible in most applications. In Gas mode operations: During the Stabilization period after a line pressure adjustment but before zeroing the RUSKA 2482 and Device Under Test, the oil levels in the sight glasses will move towards the same height while the Oil Isolation Valve is in Equalize mode.

  • Page 38: Maintenance

    RUSKA 2482 Users Manual Maintenance Pump The figures in this section detail the components of each assembly together with the relevant part numbers. Where “ASSY” appears as a part number, this component is associated with other components in an assembly for replacement purposes.

  • Page 39: Reservoir/Test Port Assemblies And Screw Press Assembly - Parts List

    Differential Pressure Piston Gauge Maintenance gms31.bmp Figure 30. Screw Press Assembly Table 3. Reservoir/Test Port Assemblies and Screw Press Assembly - Parts List ITEM DESCRIPTION PART Banjo Bolt P101230 O Ring P103614 Banjo Test Port P101226 O Ring P103606 O Ring 54-703-12 Valve Body SDW5790...

  • Page 40: Screw Press Seals

    RUSKA 2482 Users Manual ITEM DESCRIPTION PART Spring S421-202-41 Valve Stem Assembly PPA9118 Screw 70-174-2101 Pump Stand P101224 Manifold P101225 O Ring 54-703-16 Locknut P101023 Barrel P103932 O Ring 54-703-111 Back-Up Ring P104708 Rambler P103904 Ball P101022 Lead Screw Assembly...

  • Page 41: Complete Disassembly

    3. Remove all test instruments. 4. Set the Oil Isolation Valve and Gas Isolation Valve to Equalize Mode. 5. Close the Low Side Gas Interface Valve and High Side Gas Interface Valve located on the side of the RUSKA 2482.

  • Page 42: Major Purge Process

    RUSKA 2482 Users Manual Additional connections: Tubing MUST be rated for full line pressure. The purpose of this tubing and valve is to be a high point in the system for forcing out the air while filling the system with oil. The tubing also allows oil that is lost to be easily directed to an open contained.

  • Page 43: Balance Removal/Installation

    Differential Pressure Piston Gauge Maintenance 7. SLOWLY open the low port shut off valve while rotating the hand pump to maintain pressure near full line pressure. 8. As the Pump nears the end of stroke, allow the system to decrease to ambient pressure.

  • Page 44: Specifications

    RUSKA 2482 Users Manual Specifications Differential Pressure Range • 0 to 29 psi (0 to 200 kPa) Line Pressure Range • 0 to 2900 psi (0 to 200 bar) Accuracy • 40 ppm of reading +0.009 kPa Accuracy is defined as the expended uncertainty in pressure determined using the method described in ISO “Guide to the Expression of Uncertainty in Measurement,”...

  • Page 45: Packaging

    Differential Pressure Piston Gauge Packaging Packaging Contact the Fluke Customer Care before returning the instrument. A Return Merchandise Authorization (RMA) is required prior to shipment. Additional instructions may be available for best packaging practices. Fluke Calibration 10311 Westpark Drive Houston, Texas 77042-5312 custcarehouston@ge.com...

  • Page 46: Optional Shipping Method

    RUSKA 2482 Users Manual Optional Shipping Method Fluke offers custom designed shipping cases for the RUSKA 2482 instrument and accessory. The cases are designed to ship the instrument easily and safely. The following two cases are offered: 2482-106 Shipping case for RUSKA 2482 instrument...

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