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Fluke RUSKA 7350 User Manual

High pressure gas controller/calibrator
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RUSKA 7350
High Pressure Gas Controller/Calibrator
Users Manual
PN 3952249
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.

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  • Page 1 RUSKA 7350 High Pressure Gas Controller/Calibrator Users Manual PN 3952249 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

    Title Page General Information ................1-1 Introduction......................1-1 General Information................... 1-1 How to Contact Fluke ..................1-1 Safety Information ..................... 1-2 Safety Summary .................... 1-2 Keep Away from Live Circuits ..............1-2 Do Not Service or Adjust Alone..............1-2 Resuscitation....................1-2 Electrostatic Discharge Sensitive Parts ............
  • Page 4 RUSKA 7350 Users Manual Theory of Operation ................2-1 Introduction......................2-1 Power Supply..................... 2-1 Electronics Section .................... 2-1 Back Plane Board ..................2-1 Microprocessor Board ................... 2-1 IEEE-488 Interface..................2-3 Front Panel..................... 2-3 Motor Controller.................... 2-3 76xx Interface Board ..................2-4 Pneumatic Module .....................
  • Page 5 Contents (continued) Menu | Setup — User ................4-11 Menu | Setup — Units................4-13 Menu | Setup — Remote ................4-15 Menu | Setup — System................4-15 Menu | Calibrate .................... 4-16 Calibration Password ................4-16 Menu | Program — Storing A Sequence in Memory........4-17 Preparing to Program ................
  • Page 6 RUSKA 7350 Users Manual Approved Lubrications.................. 6-6 Frequency of Lubrication ................6-6 Lubrication Procedure ................... 6-6 Fuse........................6-6 Cleaning ......................6-6 Preparation for Storage and Shipment..........7-1 Disconnection Instructions................. 7-1 Packing Instructions................... 7-1 Shipping Instructions ..................7-3 Appendices A Summary of Specifications ................. A-1 B Summary of Error Messages ...............
  • Page 7 List of Tables Table Title Page 1-1. Symbols........................1-3 1-2. RUSKA 7350 - Options List .................. 1-5 2-1. Conversion Factors....................2-3 3-1. General Specification and Parameters..............3-1...
  • Page 8 RUSKA 7350 Users Manual...
  • Page 9 List of Figures Figure Title Page 2-1. RUSKA 7350 Block Diagram................2-2 2-2. Pneumatic Diagram ....................2-4 4-1. RUSKA 7350 Front Panel..................4-1 4-2. Menu Tree ......................4-2 4-3. Main Menu ......................4-3 4-4. Units - Menu ......................4-3 4-5. Main Menu - Entering Pressure ................
  • Page 10 RUSKA 7350 Users Manual viii...

  • Page 11: General Information

    In Measure mode the RUSKA 7350 measures pressure. Typically, measure mode finds applications in research laboratories, testing of gauges and transducers. 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 12: Safety Information

    RUSKA 7350 Users Manual Safety Information Safety Summary The following are general safety precautions that are not related to any specific procedures and do not appear elsewhere in this publication. These are recommended precautions that personnel must understand and apply during equipment operation and maintenance to ensure safety and health and protection of property.

  • Page 13: Symbols Used In This Manual

    Earth Ground Important Information: refer to manual Shock Hazard Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. This equipment meets the requirements of all relevant European safety directives. The equipment carries the CE mark Features The following features are available on all RUSKA 7350s.

  • Page 14: Ease Of Operation

    RUSKA 7350 Users Manual Ease of Operation An intuitive, menu-driven interface makes the RUSKA 7350 easy to use. Frequently used selections, such as the units of measure, are stored in memory each time the RUSKA 7350 powers up. Easily Programmable The RUSKA 7350’s powerful microprocessor provides the basis for smart electronics.

  • Page 15: Standard Equipment & Options

    Additional Power Cords: Additional power cords are available for most countries of the world. Table 1-2. RUSKA 7350 - Options List Option Part Number Communication Software Contact Fluke User’s Manual 3952249 Power Cord, USA and Canada 284174 Power Cord, Central Europe...
  • Page 16 RUSKA 7350 Users Manual...

  • Page 17: Theory Of Operation

    Chapter 2 Theory of Operation Introduction The RUSKA 7350’s power supply, electronics, pneumatics, and sensor combine to form a complete, stand-alone, measure and control instrument. This portion of the manual breaks the RUSKA 7350 down into its component modules (Figure 2-1) and provides a general discussion of each.
  • Page 18 RUSKA 7350 Users Manual Another important component on the Microprocessor Board is the lithium battery, which continuously updates the RUSKA 7350’s date and time, even when the unit is powered down. The Sensors, Front Panel, the pump expansion and compression limit switches communicate with this board through cables.

  • Page 19: Ieee-488 Interface

    Theory of Operation Electronics Section Table 2-1. Conversion Factors Symbol Description Conversion Factor inHg inches of mercury (0 °C) = kPa x 0.2952998 inHg inches of mercury (60 °C) = kPa x 0.296134 kiloPascals = kPa x 1.0 bars = kPa x 0.01 pounds per inch = kPa x 0.1450377 centimeters of water (4 °C)

  • Page 20: 76Xx Interface Board

    RUSKA 7350 Users Manual 76xx Interface Board This board interfaces and conditions the pump position signal. The board interfaces these signals between the electronic and pneumatic module. This board also provides a 0 – 10 VDC signal to 0 – 100 psi electronic pneumatic regulators and the motor controller.

  • Page 21: Electronics Regulator

    Theory of Operation Pneumatic Module Electronics Regulator The electronics regulator supplies a 0 – 100 psi air signal for the dome regulator. The electronics regulator is driven by a 0 – 10 VDC signal from the interface board. Dome Regulator The dome regulators, which are self-relieving, “rough”...
  • Page 22 RUSKA 7350 Users Manual...

  • Page 23: Installation

    Chapter 3 Installation Introduction This portion of the manual discusses initial installation for the RUSKA 7350. Installing the RUSKA 7350 is a relatively simple process of unpacking the RUSKA 7350, powering it up, and then using the front panel to configure the system. Unpacking the RUSKA 7350 Carefully unpack all components, checking for obvious signs of damage.

  • Page 24: Cautions

    RUSKA 7350 Users Manual W Caution If there is any condensation, the RUSKA 7350 must be thoroughly dried before power is applied. Cautions The following cautions should be heeded at all times to insure safe operation of the RUSKA 7350. WX Warning Never operate the unit with the cover removed.

  • Page 25: Local Operation

    Chapter 4 Local Operation Local Operation This section of the manual describes operation of the Calibrator using the front panel. The local interface (front panel) consists of a color TFT display, a rotary knob and a set of keys. The display shows the system status and menu options. The keys are grouped according to function.

  • Page 26: Cancel, Previous

    RUSKA 7350 Users Manual Cancel, Previous These keys are used to stop, undo, or exit the current operation. The CANCEL key returns all edited fields on the current entry screen to their original values. It also stops the current program sequence or calibration process. The PREVIOUS key exits the current menu and returns to the previous menu.

  • Page 27: Tutorial

    Local Operation Tutorial Tutorial To begin the tutorial, first verify that the Calibrator is powered-up and that the pneumatic connections have been completed. The Calibrator should display a screen similar to the one shown below. (The right hand side of the display should show the options). At power up, there may be errors relating to the default settings.
  • Page 28 RUSKA 7350 Users Manual 2. Use the rotary knob located to the right of the display to move the highlight bar to the desired unit. Note The highlighted curser initially shows the current unit of measure. When the rotary knob is moved, the current unit remains highlighted in a gray color, and the new unit is highlighted in a light blue color.

  • Page 29: Selecting Language

    Local Operation Tutorial gld08.bmp Figure 4-6. Main Menu - Control Mode 7. Press ENTER to confirm the mode change. The upper left corner will change to CONTROL, and the pressure will start moving towards the set-point. 8. After the pressure is stabilized, assure that the word Step is highlighted in the Step/Jog [F5].

  • Page 30: Triple Range (Optional)

    RUSKA 7350 Users Manual Triple Range (Optional) When Triple Ranging is enabled the currently selected range will be displayed below the current pressure. To change to a different range make sure the pressure is below 100 psi (700 kPa). Then press the Mode key and then press Range [F5] until the correct range is displayed.

  • Page 31: Entering/Exiting Control Mode

    Local Operation Vent Note The set-point can also be changed using either the Step or the Jog function. Please see Chapter 4, Step/Jog. Entering/Exiting Control Mode 1. The Control mode is set from the Main Menu. (Press PREVIOUS until the Main Menu appears.) 2.

  • Page 32: Menu

    RUSKA 7350 Users Manual Menu The menu key is used to access the less commonly accessed configuration type functions. This accesses the Setup, Calibration, Program, Test and Display functions. gld10.bmp Figure 4-8. Menu Menu | Setup Setup is used to configure the system. It includes setting all of the limits, user parameters, user-defined units of measure, remote interface and system setup.

  • Page 33: Menu | Setup - Limits

    Local Operation Menu Menu | Setup — Limits The Menu | Setup | Limits menu is used to setup all of the limits in the system. The pressure limits can be used to protect the device-under-test (DUT) from overpressure. gld12.bmp Figure 4-10.
  • Page 34 RUSKA 7350 Users Manual Control Band There are two common pressure control approaches that are available with the RUSKA 7350 Calibrator. One of the most common control styles is an Active controller where the controller remains operative and holds the pressure at a commanded set-point. This allows the system to hold the pressure at a set-point within the control stability specification (See Appendix A).

  • Page 35: Menu | Setup - User

    Local Operation Menu Slew Rate User defined maximum pressure rate of change. The Calibrator is designed to control with minimum overshoot into a wide variety of external volumes at its highest slew rate. Therefore, in most applications it is recommended that the slew rate be set at its maximum rate value.
  • Page 36 RUSKA 7350 Users Manual Step Size In addition to entering the pressure set-point by the key-pad, the pressure set-point can be changed using the step function. The step function is used primarily when the operator is taking pressure steps in equal pressure increments. The size of the pressure step is user defined.

  • Page 37: Menu | Setup - Units

    Local Operation Menu Pressure Filter The Pressure Filter is used to adjust the degree to which the front display pressure value is filtered. A value of four (4), is the default value. As the value increases, the filtering level increases, however, the display update rate reduces. Typical filter values would range between 1 to 10.
  • Page 38 RUSKA 7350 Users Manual 1. The pressure units are defined from the Menu | Units | Define. From the Main Menu (press PREVIOUS until the Main Menu appears) press Menu [F6 ⎢Setup [F2] ⎢Units [F3]. 2. Use the rotary knob to highlight the desired user-defined unit, and then select the Edit Name [F1] function key.

  • Page 39: Menu | Setup - Remote

    Local Operation Menu Menu | Setup — Remote The Menu | Setup | Remote screen is where the remote communication interface is set-up. gld16.bmp Figure 4-14. Menu | Setup | Remote - Menu GPIB Address Sets the IEEE-488 interface address. Protocol The Protocol defines which protocol should be used by the remote interface.

  • Page 40: Menu | Calibrate

    RUSKA 7350 Users Manual Date/Time The Calibrator’s system clock is continuously updated. If the date or time requires editing, the following applies; 1. The date and time are set from the Setup | System | Menu. From the Main Menu (press PREVIOUS until the Main Menu appears), press Menu [F6] | Setup [F2] | System [F5].

  • Page 41: Menu | Program - Storing A Sequence In Memory

    Local Operation Menu 3. Use the numeric keypad to enter the new calibration password. Setting the calibration password to zero allows free access to Calibrator calibration and constants. Press ENTER. 4. Press Yes [F4] to acknowledge changing the calibration password. Press No [F5] to reject changing the calibration password.

  • Page 42: Entering A New Program

    RUSKA 7350 Users Manual MaxTime The max time is the maximum time in seconds including the dwell time that the Calibrator can spend on one step of the program. After the max time elapses, the Calibrator will automatically proceed to the next set-point in the program, even if the current set-point has not been achieved.
  • Page 43 Local Operation Menu 3. Use the rotary knob to highlight “new”. 4. Press Edit [F4]. Since “new” was highlighted, the Calibrator will create a new program and give a default name of NAMEnn, where nn is a two digit number. The Program editing screen will appear, displaying the first step.

  • Page 44: Automatically Generating A Program

    RUSKA 7350 Users Manual Automatically Generating a Program For the Calibrator to automatically generate a program, the user must input the first set-point pressure, the last set-point pressure, and the number of steps in between, as well as the dwell time, max time and tolerance common to all set-points. 1.

  • Page 45: Changing The Name Of A Program

    Local Operation Menu Changing the Name of a Program 1. The name of an existing program is changed from the Program Menu. From the Main Menu (press PREVIOUS until the Main Menu appears), press Menu [F6] | Program [F4]. In addition to changing the name of an existing program, a new program may be initiated by selecting new and performing the same steps as outlined to change the name of a program.

  • Page 46: Changing The Configuration Stored With A Program

    RUSKA 7350 Users Manual 2. Use the rotary knob to highlight the name of the program. 3. Press Edit [F4]. The program editing screen will appear as a table showing all of the steps. gld22.bmp Figure 4-20. Menu | Program | Edit - Menu 4.

  • Page 47: Running A Program

    Local Operation Menu gld23.bmp Figure 4-21. Menu | Program | Config - Menu 5. Press PREVIOUS until the Main Menu appears. 6. Press Setup [F2] | Limits [F1]. Change the desired parameters using the normal procedures. 7. Return to the Main Menu by pressing PREVIOUS three times. 8.

  • Page 48: Menu | Test

    RUSKA 7350 Users Manual 4. Press Run [F2]. The configuration of the Calibrator stored with the program is restored, the pressure set-point is set to the pressure value in the first step, and the Calibrator is placed in Control mode. “Run” will now be highlighted and the program will proceed through its steps.

  • Page 49: Menu | Test - Self Test

    Local Operation Menu gld26.bmp Figure 4-24. Menu | Test | Sweep - Menu 4. Press Run [F2] to initiate the test. 5. To pause the program, press Pause [F3]. Pause will now be highlighted and the Calibrator will continue controlling to the current set-point. The Calibrator will maintain control of the current set-point until further instructions from the user.

  • Page 50: Menu | Test - Shop1

    RUSKA 7350 Users Manual gld27.bmp & gld28.bmp Figure 4-25. Menu | Test | Remote - GPIB Menu & Menu | Test | Remote | Serial 1 - Menu Menu | Test — Shop1 The Menu | Test | Shop1 menu of the system is used to display the current status of the various valve positions in the system.

  • Page 51: Menu | Display

    Local Operation Menu Menu | Display The Menu | Display is used to conveniently monitor most of the sensor output parameters. It is primarily used for troubleshooting. gld30.bmp Figure 4-27. Menu | Display - Menu Menu | Display — Blank This is used as a screen saver in the RUSKA 7350.
  • Page 52 RUSKA 7350 Users Manual 4-28...

  • Page 53: Remote Operation

    Chapter 5 Remote Operation Remote Operation The RUSKA 7350 can be operated remotely by a computer. Three interfaces are supported; IEEE-488, RS-232, and RS-485. All three interfaces support Standard Commands for Programmable Instruments (SCPI). The IEEE-488 interface additionally supports emulation of a Single Channel Interface Panel (Models 6005-701 and 6005-761).

  • Page 54: Rs-232

    RUSKA 7350 Users Manual Note Do not change any jumpers or switch settings on the IEEE-488 interface ⎢ ⎢ board. The IEEE-488 address is set by the Menu Setup Remote screen. RS-232 The RS-232 interface supports standard serial operation from a computer to a single RUSKA 7350.

  • Page 55: Configuration

    Remote Operation Configuration Configuration The remote interface is configured using the local interface before the remote is connected. The parameters needed varies with the interface used. IEEE-488 Address, Protocol RS-232 Baud Rate, Data Bits, Parity, Stop Bits RS-485 Address, Baud Rate, Data Bits, Parity, Stop Bits To configure the remote interface follow these steps: 1.

  • Page 56: Ansi/Ieee 488.2-1987 Command Summary

    RUSKA 7350 Users Manual ANSI/IEEE 488.2-1987 Command Summary *CLS Clear Status *ESE? Event Status Enable Query *ESE <number> Event Status Enable *ESR? Event Status Register *IDN? Identification *OPC? Operation Complete Query (Returns 1) *OPC Operation Complete *RST Reset *SRE? Service Request Enable Query *SRE <number>...
  • Page 57 Remote Operation Device Messages :MODE? calibration edit enabled? :MODE ON¦OFF¦1¦0 enable calibration edit (Cal. button required) DISP :ENABle ON¦OFF¦1¦0 turns front panel display on/off :TEXT <string> displays message on front panel :BGRaph <number> sets bar graph maximum OUTPut :STATe ON¦OFF¦1¦0 off=MEASure, on=CONTrol :STATe? returns 0=Measure or 1=Control...

  • Page 58: Example Scpi Commands

    RUSKA 7350 Users Manual :LIST :PRESsure <number> [,<number>] set list of pressure values :POINts? returns number of points defined :DWELl <number> [,<number>] specifies dwell times :POINts? returns number of dwell times :TOLerance <number> [,<number>] specifies tolerances :POINts? returns number of tolerances :DIRection UP|DOWN direction to go through list :COUNt <number>...

  • Page 59: Scpi Status Registers

    Remote Operation Device Messages SCPI Status Registers Status Byte Register (STB), Service Request Enable Register (SRE) Bit 7 Operation Status Summary. Set when an event enabled in OPER:ENABLE occurs. Bit 5 EBS - Event status bit. Set when an event enabled in ESE occurs. Bit 4 MAV - Message Available.

  • Page 60: 6005 Interface Panel Emulation

    RUSKA 7350 Users Manual Questionable Status (QUES:EVENT, QUES:CONDITION, QUES:ENABLE) Bit 0 Voltage is questionable. Set when supply voltages are not within 5%. Bit 1 Current is questionable. Always 0. Bit 2 Time is questionable. Set when the clock has not been set. Bit 3.

  • Page 61: Serial Operation

    Remote Operation Serial Operation Serial Operation The RS-232 and RS-485 ports accept the same SCPI commands as the IEEE-488 port. The commands can be terminated by a carriage return (hexadecimal 0D) or a line feed (hexadecimal 0A). The responses are always terminated by a carriage return followed by a line feed.
  • Page 62 RUSKA 7350 Users Manual 5-10...

  • Page 63: Maintenance

    Chapter 6 Maintenance Introduction Very little maintenance is normally required for the RUSKA 7350. The following sections discuss some of the suggested procedures. Observing the RUSKA 7350’s Full Scale Rating Instructions for observing the RUSKA 7350’s full scale rating are given below. 1.

  • Page 64: Processor Battery

    RUSKA 7350 Users Manual WX Warning The RUSKA 7350 should only be opened by qualified electrical/mechanical service technicians. Lethal voltages are present and exposed in the power supply and display. 1. Turn off the RUSKA 7350 and disconnect the power cord from the power supply. 2.

  • Page 65: Calibration Instructions - Single Sensor

    Maintenance Calibration Calibration Instructions — Single Sensor To calibrate the RUSKA 7350, the user simply connects a calibration standard to the Calibrator’s Test port then follows the 4-step calibration procedure on the Callibrator’s display. The calibration procedures is a menu driven procedure that steps the user through the pressures that are required to calibrate each pressure range that is included in the Calibrator.

  • Page 66: Storing The Coefficients

    RUSKA 7350 Users Manual Note If the actual pressure is outside of the tolerance for the requested mid-point pressure, Error –222 Data out of range will occur. Acknowledge this error by selecting OK, then re-enter the actual pressure, repeating Step 2, number 1, if necessary.

  • Page 67: Editing The Calibration Coefficients

    Maintenance Calibration Editing the Calibration Coefficients If the RUSKA 7350’s memory is erased but the calibration coefficients are known, the user can restore the coefficients to the RUSKA 7350 by following the directions below. W Caution Never randomly adjust the calibration coefficients. Only qualified personnel with valid backup data should be allowed to edit the coefficients.

  • Page 68: Ruska 7350 Pump Lubrication

    RUSKA 7350 Users Manual RUSKA 7350 Pump Lubrication W Caution The threaded portion of the RUSKA 7350 pump spindle requires periodic lubrication. Failure to lubricate the pump spindle can cause premature failure of the pump spindle and nut resulting in permanent pump damage. Approved Lubrications Jet Lube AP-5 Grease (part number 45-342) Jet Lube MP-50 Moly-paste...

  • Page 69: Preparation For Storage And Shipment

    Even polyfoam or rubber foam should be cut into strips so that it will not present a large rigid surface to the RUSKA 7350. Fluke has found that corrugated cardboard boxes provide the best packing. The boxes sometimes arrive damaged, but the contents are usually intact. A minimum of 3 inches of foam with at least an N95 impact rating should separate the inner surface of the inner box and any portion of the RUSKA 7350.
  • Page 70 In general, prepare the RUSKA 7350 for shipment as follows. 1. Fluke has an RMA procedure in place. Please contact the Customer Service Center to obtain an RMA number prior to returning any equipment to Fluke. Have the...

  • Page 71: Shipping Instructions

    Figure 7-1. Packing the Calibrator Shipping Instructions Fluke recommends using air freight for transportation. Surface transportation subjects the shipment to more frequent handling and much more intense shock. Again, it is essential that the procedures mentioned in the packing instructions are strictly...
  • Page 72 7350 Users Manual...

  • Page 73: A Summary Of Specifications

    Appendix A Summary of Specifications Accuracy Specifications of pressure transducer instrumentation can be divided into three categories: Input Specifications, General Specifications, and Performance Specifications. Each of these categories in turn consists of parameters which are usually specified by minimum and/or maximum numeric limits. Almost all of these parameters can have an effect on what is generally referred to as the instrument’s “accuracy.”...

  • Page 74: Specifications

    Within a given instrument, an error can be either random or systematic, as well as random or systematic within the instrument’s population. The user is free to consult Fluke for recommended methods of minimizing error source contributions. In summation, total error can and should be managed by the control of the three general error sources: Input Specifications, which includes the user’s chosen calibration standards;...
  • Page 75 Summary of Specifications Accuracy Electrical Power 100 – 120 VAC or 22 – 240 VAC, 50/60 HZ, single phase, 600 VA MAX (Separate part numbers for 115VAC and 230 VAC) Fuse 6AT-250V Humidity 5 to 95% noncondensing Temperature Operating: 5 °C to 50 °C (40 °F to 122 °F) Storage: -20 °C to 70 °C (-4 °F to 158 °F) Ingress Protection IP 20, Indoor use, Altitude <2000m...
  • Page 76 RUSKA 7350 Users Manual...

  • Page 77: B Summary Of Error Messages

    Appendix B Summary of Error Messages Summary of Error Messages Negative error numbers are from the Standard Commands for Programmable Instruments (Version 1991.0). Table B-1. Summary of Error Messages Value Description and Corrective Action No Error. -103 Invalid Separator. Check punctuation in the SCPI command. -104 Data Type.
  • Page 78 Check main pressure supply, shop air supply, and for leaks. Factory Data Lost. Internal factory constants have been lost. Contact Fluke for more information. Model Changed. Firmware has been downloaded that is not correct. Download the correct firmware.

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