Enraf Nonius Sonopuls 492 Service Manual
  1. Manuals
  2. Brands
  3. Enraf Nonius Manuals
  4. Medical Equipment
  5. Sonopuls 492
  6. Service manual
Enraf Nonius Sonopuls 492 Service Manual

Enraf Nonius Sonopuls 492 Service Manual

Hide thumbs Also See for Sonopuls 492:
Table of Contents

Advertisement

Quick Links

Download this manual
Sonopuls 492
SERVICE MANUAL
Part number: 1497772

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Sonopuls 492 and is the answer not in the manual?

Questions and answers

Related Manuals for Enraf Nonius Sonopuls 492

Summary of Contents for Enraf Nonius Sonopuls 492

  • Page 1 Sonopuls 492 SERVICE MANUAL Part number: 1497772...
  • Page 3 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Sonopuls 492 SERVICE MANUAL Copyright: Enraf-Nonius B.V. P.O.Box 810 2600 AV Delft The Netherlands part number: 1497.772-40 Index November 2000...

  • Page 4: Table Of Contents

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 CONTENTS Date of issue page INTRODUCTION .........
  • Page 5 Nov. 2000 B-4 Fig. 14 Sonopuls 492 top view ......Nov. 2000 B-5 Fig.
  • Page 6 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Index November 2000...

  • Page 7: Introduction

    INTRODUCTION INTRODUCTORY REMARKS This manual has been written for the technicians involved in the service of the Sonopuls 492. Service can be carried out by the service organization of the supplier or by any other technician authorized by Enraf-Nonius B.V.
  • Page 8 The parts listed in a configuration file are defined as registered parts. Such are for example parts as transformers, PC Boards, key-boards and software. The registered parts of the Sonopuls 492 are marked with a "Y" for "Yes" in the spare parts list in appendix A (column C).

  • Page 9: General

    GENERAL The Sonopuls 492 is a microprocessor controlled unit which combines Electro Therapy (E.T.) and UltraSound (US.) therapy in one unit. The unit is equipped with large LCD displays with around the operating keys for a clear display for the parameter settings. The power required for the unit is supplied by a separate power supply.
  • Page 10 (i.e. the ultrasound signal). Two types of treatment heads are available for the Sonopuls 492 unit, one type of 1 MHz and 3.1 MHz with a large treatment surface and one type of 1 MHz and 3.1 MHz with a small treatment surface and are suitable for subaqual treatments.

  • Page 11: Technical Data

    I: The equipment has a safety earth (ground) connection, and must be connected to a wall socket with protective earth connection. BF: The equipment has a floating patient circuit. The Sonopuls 492 meets the require- ments of IEC 601-1, IEC601-2-5 and IEC601-2-10 safety standards.
  • Page 12 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Pulsed ultrasound Pulse frequency / Duty cycle : 100 Hz. / 5, 10, 20, 50 and 80% Number of connections Intensity : 0 - 3 W/cm , duty cycle 5, 10, 20 and 50% 0 - 2.5 W/cm...
  • Page 13 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 pause time (interval) 1 - 60 s Delay time : 0.1 - 80 s. Amplitude : 0 - 140 mA* (at a patient resistance up to 500 ohm) * in some combinations of pulse width, frequency and spectrum the output current is limited to 90 mA according the IEC 601-2-10.
  • Page 14 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Delay time : 0.1 - 80 s. Amplitude : 0 - 100 mA (at a patient resistance up to 500 ohm) Diadynamic current types Available types : MF, DF, CP, LP and CPid...
  • Page 15 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Balance setting : With parameter control knob Amplitude : 0 - 100 mA (at a patient resistance up to 500 ohm) Isoplanar vector field (four pole interferential therapy) Carrier frequency : 2 - 10 kHz...
  • Page 16 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 1-10 Introduction November 2000...

  • Page 17: Description

    Sonopuls 492 Service Manual 1497772 DESCRIPTION Because of the modular construction of the Sonopuls 492 the description is on block diagram level. BLOCK DIAGRAM (see appendix B fig. 1) The electronic circuit of the Sonopuls 492 is located on 2 modules: Application module (also referred to as main PC Board.
  • Page 18 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Description November 2000...

  • Page 19: Test Equipment And Tools

    1497772 TEST EQUIPMENT AND TOOLS TEST EQUIPMENT For the repair and maintenance procedures of the Sonopuls 492 the following test equipment and accessories are required: Digital multimeter 3 ½ digit, accuracy better than 1 %. For example Fluke 77. Two beam oscilloscope, 60 MHz, accuracy better than 5%. For example Philips PM 3055 Safety tester according IEC 601-1.
  • Page 20 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Test equipment and tools November 2000...

  • Page 21: Maintenance

    Sonopuls 492 Service Manual 1497772 MAINTENANCE GENERAL We recommend to check the Sonopuls 492 annually. CHECKLIST The following procedures must be carried out during an inspection and/or after every repair: 4.2.1 Modifications, if any, according to the "Service Info" sheets. See appendix C of this manual for further information.

  • Page 22: Functional Test

    FUNCTIONAL TEST 4.3.1 Self test Connect the Sonopuls 492 by means of the power supply to the mains supply and switch on the equipment. The Sonopuls 492 will carry out the so-called self test for approx. 10 seconds. At the end the buzzer sounds (otherwise see par. 4.4.1.2). It is assumed that when the selftest is passed all functions of the Sonopuls 492 are okay.
  • Page 23 Check that the intensity display on the Sonopuls 492 reads 2 W/cm² ± 0.40 W/cm² (otherwise see par. 4.4.1.8) and check that there is acoustical output power (otherwise see par.
  • Page 24 1497772 4.3.4 Electro therapy module output current testing To check the output currents of the Sonopuls 492 use a load resistor of 500 or 10 k requested and connect the electro therapy output to an oscilloscope. Check that the output signals correspond with figures 2 to 12 at appendix B.
  • Page 25 E.T. output socket. Set a treatment time Set for 50 mA amplitude on the Sonopuls 492 display. Disconnect the load resistor (while looking at the oscilloscope) Check that the image on the oscilloscope looks like the waveform at appendix B, fig. 6.
  • Page 26 The signal generated is a high voltage output signal. Warning: When testing the high voltage output of the Sonopuls 492 the voltage at the connections of the load resistor could be up to approx. 400 V. Take precautions that these connections could not accidentally be touched.
  • Page 27 Switch off the Sonopuls 492. 4.3.5 Remote control test (if available) Connect a remote control to the Sonopuls 492. Use two-pole interferential therapy for testing of the remote control. Check the keys of the remote control one by one. Check the amplitude control for channel 1 Check that the output current of channel 1 increases and/or decreases when the remote control is used.
  • Page 28 Safety tests The earth leakage current and patient leakage current are applicable to the combination of the adapter-Sonopuls 492 unit combination. To determine the leakage currents it is sufficient to test the mains adapter only. Check the earth leakage current and the patient leakage current in normal condition (NC) as well as in the single fault condition (SFC), see the testing diagram at appendix B fig.

  • Page 29: Trouble Shooting

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 TROUBLE SHOOTING 4.4.1 Trouble shooting list Failure indication: Action to be taken: 4.4.1.1 Sonopuls 492 does not 1. Check mains power supply switch on; LCD display fails 2. Check/replace mains adapter 3. Check/replace wiring 4.
  • Page 30 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 4.4.1.8 No US. output or incorrect output 1. Check/replace ultrasound treatment head 2. Replace main PC Board 3. Check/replace output socket CN5 4. Check/replace flatcable between CN3 (main PCB) and CN7 (conn. PCB) 4.4.1.9...

  • Page 31: Error Code List

    - Check/replace battery if installed Flash code corrupt - Flash processor (see par. 4.5.6) (selftest error) REPLACEMENT PROCEDURES 4.5.1 General When handling static sensitive devices such as the PC Boards of the Sonopuls 492 the following precautions should be observed: 4-11 Maintenance November 2000...
  • Page 32 Ground all electrical equipment, work-bench, soldering iron etc. After every repair a functional test must be performed (see par. 4.3). Warning: Inside the Sonopuls 492 high voltages are available, beware of electrical shock. Do not touch components or heat sinks when the cover is removed.
  • Page 33 To be able to (re-)program/flash the Sonopuls 492, you’ll need a special communication cable to connect the Sonopuls 492 to a PC. One side of the cable with the 4-pins mini-din connector is plugged into the remote control connector of the Sonopuls 492. The other side of the cable with the standard 9 pins RS232 connector, is plugged into an available serial (COM) port of the PC.

  • Page 34: Adjustment Procedures

    95 or 98 or NT has been started up completely. Be sure that the Sonopuls 492 is not connected to the PC while it is switched on. During start up, Windows tries to detect devices which are connected to the COM ports. This may disturb synchronisation of the communication between the PC and the Sonopuls 492 Close all non relevant Windows applications.

  • Page 35: Operating, Storage And Transport Conditions

    Relative humidity 10% till 90% (non condensing). Atmospheric pressure 500 till 1060 hPa. STORAGE The Sonopuls 492 and any accessories must always be stored in their original packing. The long term storage conditions are: Environment temperature till 50 Relative humidity 10% till 100%.
  • Page 36 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Storage and transport November 2000...

  • Page 37: Spare Parts

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 SPARE PARTS This chapter deals with placing orders for spare parts (refer to appendix A) as well as the listing of the actual spare parts (appendix A, spare parts list). ORDERING Spare parts can only be ordered if the following data is supplied:...

  • Page 38: Repair Service

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 REPAIR SERVICE Defective PC Boards can be offered to Enraf-Nonius for repair. The repair order can be presented to Enraf-Nonius by means of the "Authorization Request for Return Shipment". Refer to the return shipment procedure as per par. 6.4.

  • Page 39: Appendix A Spare Parts List

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 APPENDIX A SPARE PARTS LIST The spare parts list on the next page shows all available spare parts. The various columns are explained hereafter: Item: The item number refers to the number on the illustration(s).
  • Page 40 Test equipment, US. calibration dummy 1417802 Test equipment, US. dummy load 0416801 Tool, PC-cable, serial, for processor flashing 0497750 Software, flash for Sonopuls 492, ver. 1.00 2501016 Battery, Pb, 12V, 1.8Ah CNA/B 0497604 Connector, unit supply, incl. wiring 2523997 Connector, DIN, 8 pol.

  • Page 41: Appendix B Drawings

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 APPENDIX B DRAWINGS Figure 1 Block diagram. Appendix B November 2000...
  • Page 42 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 2 Output signal test (2-pole int). Figure 3 Output signal test (2-pole int). Figure 4 Output signal test (2-pole int). Figure 5 Output signal test (2-pole int). Figure 6 Output signal test (2-pole int).
  • Page 43 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 8 Output signal test (low freq DF). Figure 9 Output signal test (high voltage) Figure 10 Output signal test (high voltage). Figure 11 Output signal test (micro curr.). Figure 12 Output signal test (micro curr.).
  • Page 44 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Earth leakage current measurement Patient leakage current measurement (nomal condition) NC Patient leakage current measurement (single fault condition) SFC Figure 13 Safety measurement setup. Appendix B November 2000...
  • Page 45 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 14 Sonopuls 492 top view. Appendix B November 2000...
  • Page 46 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 15 Sonopuls 492 side view. Appendix B November 2000...
  • Page 47 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 16 Chassis top view. Appendix B November 2000...
  • Page 48 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 17 Top cover inside view. Appendix B November 2000...
  • Page 49 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 18 Main PC Board (PC Board id: 2557.136). Appendix B November 2000...
  • Page 50 1497772 PC Board specification Product code: 0497.620 PC Board, application US. and E.T. Description UltraSound (US.) and Electro-therapy (E.T.) application module for Sonopuls 492 unit. Layers (single/bi/multi): bi-layer Product code(s) 0497620 Part no of complete assy (printed on label on PC Board) 2557136 Part no of PC Board only (printed on PC Board) 0497811 Equivalent service (spare part) part no (not printed on PC Board;...
  • Page 51 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Figure 19 User interface PC Board. B-11 Appendix B November 2000...
  • Page 52 0497812 Equivalent service (spare part) part no (not printed on PC Board; used for ordering only) Software Service Circuit adjustments: Serviceable parts for FSE: S2, S3 Repairable by manufacturer: Yes Application / compatibility Can be used for Sonopuls 492 units. Notes B-12 Appendix B November 2000...

  • Page 53: Appendix C Service Info's (Product Change Notes)

    Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 APPENDIX C SERVICE INFO'S (Product Change Notes) GENERAL The technical information in the service manuals of Enraf-Nonius is up to date from the date of issue. The necessary additional information (of any kind) will be provided in the following way:...
  • Page 54 Enraf-Nonius B.V. Sonopuls 492 Service Manual 1497772 Revision history First edition: November 2000 Revisions: Chapter: Revision: Date of issue: page Appendix C November 2000...
  • Page 56 Henley Healthcare Inc. Subsidiary of Enraf-Nonius B.V. P.O. Box 810 2600 AV Delft The Netherlands...

Table of Contents