Coltene SciCan BRAVO G4 Technical & Service Manual
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Coltene SciCan BRAVO G4 Technical & Service Manual

Chamber autoclave
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G4
BRAVO
™
Chamber Autoclave
Technical Service Manual
SD-603 EU EN R3 | 97071291-3
BRAVO is a trademark of SciCan Ltd. A Coltene Group company.

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Summary of Contents for Coltene SciCan BRAVO G4

  • Page 1 BRAVO ™ Chamber Autoclave Technical Service Manual SD-603 EU EN R3 | 97071291-3 BRAVO is a trademark of SciCan Ltd. A Coltene Group company.
  • Page 3 97071291 Rev. 03 2021-09 Distributed by: SciCan Ltd. A Coltene Group Company 1440 Don Mills Rd., Toronto, ON, Canada, M3B 3P9 T +1-416-445-1600 TF +1-800-667-7733 customerservice@scican.com Manufactured by: CEFLA s.c. Headquarter:Via Selice Provinciale 23/A 40026 Imola (BO) IT...
  • Page 4 Sterilizers Bravo G4 - TECHNICAL MANUAL ITALIANO Page left blank intentionally CONTENTS...

  • Page 5: Table Of Contents

    Sterilizers Bravo G4 - TECHNICAL MANUAL Contents 1. GENERAL WARNINGS ..................................4 1.1. FOREWORD ......................................4 1.2. SAFETY INSTRUCTIONS ................................5 2. PACKING AND TRANSPORT ................................7 2.1. TRANSPORT AND STORAGE ............................... 7 2.2. DAMAGE DURING SHIPMENT ..............................8 3. GUIDELINES - SAFETY TEST - VALIDATION (IF REQUIRED) ....................9 3.1.

  • Page 6: General Warnings

    Sterilizers Bravo G4 - TECHNICAL MANUAL 1. GENERAL WARNINGS 1.1. FOREWORD The device described in this manual is manufactured by CEFLA s.c. - via Selice Provinciale 23/A - 40026 Imola (BO) Italia, which is the manufacturer, in compliance with the applicable European Directives detailed in the declaration of conformity.

  • Page 7: Safety Instructions

    Sterilizers Bravo G4 - TECHNICAL MANUAL 1.2. SAFETY INSTRUCTIONS Information that draws the user’s attention to the need of preventing dangerous situations and ensuring the correct and safe use of the device is reported in the text according to the following layout: SYMBOL DESCRIPTION WARNING: General obligation...
  • Page 8 Sterilizers Bravo G4 - TECHNICAL MANUAL SYMBOL DESCRIPTION DANGER: Tipping over DANGER: Heavy object. Two persons are required WARNING! ALWAYS DISCONNECT power supply before performing any maintenance or cleaning operation. The packed device must be handled using, where possible, suitable mechanical means (forklift, pallet truck, etc.) and following the indications on the package.

  • Page 9: Packing And Transport

    Sterilizers Bravo G4 - TECHNICAL MANUAL 2. PACKING AND TRANSPORT 2.1. TRANSPORT AND STORAGE Instructions on how to handle, store and open the package are given on the outside of the cardboard box. These instructions must be carefully followed. 1) Transport and store only in the direction indicated by the arrows.

  • Page 10: Damage During Shipment

    Sterilizers Bravo G4 - TECHNICAL MANUAL 2.2. DAMAGE DURING SHIPMENT When the device is received, check the packing container for any damage suffered. If the packages are found to be damaged on delivery, accept them with reserve by signing the delivery note and indicating that the “CONTENTS ARE ACCEPTED BUT THEY NEED TO BE CHECKED”.

  • Page 11: Guidelines - Safety Test - Validation (If Required)

    Sterilizers Bravo G4 - TECHNICAL MANUAL 3. GUIDELINES - SAFETY TEST - VALIDATION (IF REQUIRED) Periodical checks to be carried out every year and checks after repair/updates/settings with reference to Standard IEC 61010. Safety standards for medical electrical equipment classified according to IEC 61010 in Class 1. 3.1.

  • Page 12: Conformity Report

    Sterilizers Bravo G4 - TECHNICAL MANUAL 3.2. CONFORMITY REPORT GUIDELINES - SAFETY TEST - VALIDATION (IF REQUIRED)

  • Page 13: Application Example With Instrument Secutest Siii+ On Sterilizer

    Sterilizers Bravo G4 - TECHNICAL MANUAL 3.3. APPLICATION EXAMPLE WITH INSTRUMENT SECUTEST SIII+ ON STERILIZER  Measurement of ground conductor resistance.  Measurement of ground-leakage current.  Measurement of insulation resistance between network and grounding. Disconnect power supply cable of the device and connect it to the relevant instrument socket (e.g.: SECUTEST SIII+).
  • Page 14 Sterilizers Bravo G4 - TECHNICAL MANUAL Connect the clamp to the frame at the point indicated in the following picture: Metal foot [A] WARNING: During measurement execution, hazardous voltage could remain in the device. Press “Start” to start test sequences. Depending on your instrument, you have to select all the tests indicated below: A) Measurement of ground conductor resistance.

  • Page 15: Indications For The Solution Of Non-Conformities Detected In The Test

    Sterilizers Bravo G4 - TECHNICAL MANUAL The tester issues (where applicable) a paper report with test results. a) Check that the test has passed. b) Add the values to the conformity report only in the absence of the paper report (otherwise attach the report and tick the tests in the report as performed).

  • Page 16: Functioning

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4. FUNCTIONING NOTE - UNIT OF MEASURE: Pressure (a.s.l.) 1 bar (value in relative barg at sea level) 0 relative bar = 1 absolute bar. 4.1. PRE-HEATING When the autoclave is turned on, the pre-heating setting screen is displayed, set by default to ON with a time of 60’. Depending on the user’s choice, it can be: - PRE-HEATING not active (OFF).

  • Page 17: Warm Up

    Sterilizers Bravo G4 - TECHNICAL MANUAL With PRE-HEATING active and closed door, solenoid valve EV5 is activated. PRE-HEATING - component activation status Drain Chamber High drain Air inlet Low drain deflector air inlet (N.O.) (N.C.) (N.C.) (3V) (N.C.) Off (0) open closed closed...
  • Page 18 Sterilizers Bravo G4 - TECHNICAL MANUAL 134° C Program B Cycle - 4 minutes 132°C/270°F Hollow Wrapped Cycle - 4 minutes (ROW versions only) (US/CA versions only) 1. CS – Cycle Start 1. CS – Cycle Start 2. CSV – Cycle Start Vacuum 2.

  • Page 19: 1St Vacuum Phase

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.3. 1st VACUUM PHASE This phase represents the actual start of the sterilization cycle; with the activation of the vacuum pump it is possible to reach the maximum level of vacuum inside the chamber at - 0.80 bar. During the whole phase, the chamber tube bundle heating element and the generator heating element are activated to allow for a correct management of the following steam generation.
  • Page 20 Sterilizers Bravo G4 - TECHNICAL MANUAL 134° C Program B Cycle - 4 mins (ROW versions only) 132°C/270°F Hollow Wrapped Cycle - 4 mins (US/CA versions only) FUNCTIONING...
  • Page 21 Sterilizers Bravo G4 - TECHNICAL MANUAL According to the vacuum pump model present in the autoclave, a specific minimum pressure value is required, that can be achieved during vacuum pulses. VACUUM PUMP PMIN [bar] Model HX10P3 -0.80 FUNCTIONING...

  • Page 22: 1St Pressure Rise

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.4. 1st PRESSURE RISE In this phase the steam injection is activated in the chamber, bringing the pressure from the negative value reached during vacuum pulse to 1.00 bar. The pressure rise is divided into two parts; the first part from - 0.80 bar to 0.00 bar and the second part from 0.00 bar to 1.00 bar.
  • Page 23 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 24: 2Nd Vacuum Phase

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.5. 2nd VACUUM PHASE This phase of the cycle allows the chamber pressure to drop below the value of 1.00 bar reached during the 1 PRESSURE RISE, by discharging steam through solenoid valve EV1 and draining condensate through the solenoid valve EV3 connected to the chamber filter.
  • Page 25 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 26: 2Nd Pressure Rise

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.6. 2nd PRESSURE RISE This phase is similar to the 1 PRESSURE RISE and brings the pressure from the negative value reached during vacuum pulse to 1.00 bar. The sequence of vacuum pulses and pressure rises eliminates almost totally the residual air from the sterilization chamber, which is also discharged from any hollow bodies or porous materials belonging to the load.
  • Page 27 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 28: 3Rd Vacuum Phase

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.7. 3rd VACUUM PHASE This phase, which precedes the PROCESS phase, includes the direct steam and condensate drainage followed by a forced decrease down to - 0.80 by means of the vacuum pump. In order to make it easier to reach the value of -0.80 bar, solenoid valve EV2 is activated for 5”. VACUUM PHASE - component activation status High Drain...
  • Page 29 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 30: 3Rd Pressure Rise

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.8. 3rd PRESSURE RISE Alternating vacuum decreases down to the value of - 0.80 bar with 2 pressure rises up to 1.00 bar ensures that the residual air in the chamber is about 0.06% of the initial total amount. Following the phases indicated above, the 3 PRESSURE RISE starts, leading to the actual STERILIZATION PROCESS, carried out...
  • Page 31 Sterilizers Bravo G4 - TECHNICAL MANUAL Once the pressure and temperature values set for the selected sterilization cycle have been reached, the 3 pressure rise ends and the sterilization process starts with the balancing phase. FUNCTIONING...

  • Page 32: Sterilization Process

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.9. STERILIZATION PROCESS The BALANCING phase lasts approximately 15” and allows stabilising the thermodynamic conditions inside the chamber before starting the actual PROCESS phase. Maximum, normal and minimum pressure values have been defined for each cycle and must be observed with during the BALANCING and PROCESS phases.
  • Page 33 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 34: Discharge

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.10. DISCHARGE At the end of the PROCESS cycle, the DRAINAGE phase starts to allow draining all the steam present in the chamber, with a vacuum decrease to the value of - 0.80 bar. As for previous VACUUM DECREASE phases, the DRAINAGE includes a first spontaneous depressurisation that exploits the pressure generated by the steam and that only requires the control of drainage solenoid valves EV1 and EV3.
  • Page 35 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 36: Drying

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.11. DRYING This phase of the sterilization cycle eliminates the residual humidity from the chamber, by completely drying the load. The drying is carried out keeping a negative pressure level inside the chamber and allows the condensate to evaporate at a temperature lower than 100°C (212°F).
  • Page 37 Sterilizers Bravo G4 - TECHNICAL MANUAL The LEVELLING phase starts at the end of the standard drying time, and at the end of any additional drying time that can be set by the user. FUNCTIONING...

  • Page 38: Pressure Levelling

    Sterilizers Bravo G4 - TECHNICAL MANUAL 4.12. PRESSURE LEVELLING With the PRESSURE LEVELLING phase, the ambient pressure is levelled, which is an essential condition to determine the end of the cycle and allow opening of the door. The values of chamber pressure and ambient pressure are balanced by making air flow into the chamber for 60”, through the bacteriological filter/EV5, without suction.
  • Page 39 Sterilizers Bravo G4 - TECHNICAL MANUAL FUNCTIONING...

  • Page 40: Service Menu

    Sterilizers Bravo G4 - TECHNICAL MANUAL 5. SERVICE MENU “TOUCH SCREEN” LCD SEQUENCE CONTROL PANEL COMMANDS - just select the desired command. SQ1 - ACCESSING THE SERVICE MENU From the home screen, select the gear icon and then the SERVICE menu. SQ2 –...
  • Page 41 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ4 - COMPONENT TEST Select COMPONENT TEST to display a vertical scroll menu with the following options: - Solenoid valves - Other components - Door - Water - Safety valve test SQ5 - SOLENOID VALVES Select SOLENOID VALVES to display the status of the 6 solenoid valves, which are indicated with: solenoid valve open...
  • Page 42 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ7 – DOOR From the DOOR menu, you can establish: - The door status (closed/locked). - The status of the closing system microswitches. - The values of the current absorbed by the motor during the different door closing phases.

  • Page 43: Component Test - Functional Checks On Solenoid Valves/Other Components

    Sterilizers Bravo G4 - TECHNICAL MANUAL 5.1. COMPONENT TEST – FUNCTIONAL CHECKS ON SOLENOID VALVES/OTHER COMPONENTS SQ10 – COMPONENTS TEST The following menus can be used: - SOLENOID VALVES - OTHER COMPONENTS This menu is used to test individual component or to activate and test several components at the same time to check the different functions that are supposed to be performed during a sterilization cycle.
  • Page 44 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ11 – CHECK EV5 FOR PROPER CLOSING Remove steel plate (1) to separate the door cover from the crossbar/porthole unit - Be careful with the spring/cylinder units (2). - Close the door. - Access the SERVICE menu. - Select COMPONENT TEST.
  • Page 45 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ12 – CHECK EV1/EV3 FOR PROPER CLOSING - Close the door. From SOLENOID VALVES menu: - Close EV1. - Open EV4. Go to the OTHER COMPONENTS menu then: - Take note of the reading “P” of chamber pressure. - Activate VP –...
  • Page 46 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ15 – CHECK FOR EV2 OPENING - Close the door. From SOLENOID VALVES menu: - Open EV1, EV2 and EV4. Go to the OTHER COMPONENTS menu: - Take note of the reading “P” of chamber pressure. - Activate VP –...
  • Page 47 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ19 - CHECK FOR DOOR MICROSWITCH ACTIVATION From DOOR menu: - Manually press the actuator pin of the door checking the activation of μSw door indicator. - Close the door and detect the activation of μSw door indicator and of μSw lock indicator.
  • Page 48 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ21 – MPX CALIBRATION Select PRESSURE SENSOR CALIBRATION to correct any differences between the pressure value displayed and the pressure measured with a reference pressure gauge. The three counters displayed can be modified and represent: - P+ pressure value correction at + 2.10 bar.
  • Page 49 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ25 – CONTINUOUS CYCLE (ROW versions only) Select CONTINUOUS CYCLE to display the STERILIZATION cycle selection screen. Select and activate one of the cycles to run it and repeat it automatically with a 5 minutes pause between subsequent cycles. The same procedure can be applied to the TEST cycles SQ25.1 –...
  • Page 50 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ29 – ENTER REF The ENTER REF function lets you enter the product code specific to each individual model. This code is stored at the factory and needs only to be re-entered after the PCB has been replaced, according to the following procedure. - With device ON, home screen, plug a USB key pre-loaded with FW, original version or later one.
  • Page 51 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ32 – WATER LOADING TIMES The time settings for the water filling can be set automatically or manually. AUTOMATIC SETTING: With empty tank, click on START to activate the automatic water filling. The device detects the time necessary to reach the minimum level (alarm time) and the time required to reach the maximum level.
  • Page 52 Sterilizers Bravo G4 - TECHNICAL MANUAL SQ35 - 134° C STERILIZATION TIME (ROW versions only) Select 134° STERILIZATION TIME to display a screen where it is possible to select the sterilization time between 4 and 5.5 minutes. This option is valid only for sterilization cycles performed at 134°C, except for Prion cycle.

  • Page 53: Error/Warning-Alarm-Hazard-System Error

    Sterilizers Bravo G4 - TECHNICAL MANUAL 6. ERROR/WARNING-ALARM-HAZARD-SYSTEM ERROR 6.1. CODE “E” ERROR/WARNINGS (**) 1 = OK (warning) - Tap OK on pop-up window. 2 = OK + door unlock / RESET - Keep OK pressed for 3 seconds on the pop-up window and the autoclave will start the procedure to open the door in full safety.
  • Page 54 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Use of poor quality Empty the filling tank and fill it demineralized water - with demineralized water falling check label data. within the limit of 15 μS.
  • Page 55 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Empty the filling tank and For connection to replace the 2 PURE 100 resin demineralizer PURE cartridges. 100 - device check Top up the tank (ROW versions only).
  • Page 56 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Empty the filling tank and replace For connection to the 2 PURE 100 resin cartridges. Demineralizer PURE (ROW versions only). 100 –...
  • Page 57 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check the correct operation of the microswitch by means of the Closed door detection SERVICE/COMPONENT microswitch fault - TEST/DOOR menu. microswitch check.
  • Page 58 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check: - Correct wiring of cables on the door ajar microswitch and door closing microswitch. - Correct operation of the Check microswitch microswitches by means of wirings.
  • Page 59 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY E051 Reminder to run Reminder to run Helix Run Helix Test cycle as TEST REMINDER Helix Test. Test cycle. planned.
  • Page 60 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Thoroughly clean the seal and the stainless steel door leaf, reset the alarm and repeat a test cycle. Problem in the door Clean the seat of the seal in the seal sealing - seal plate.
  • Page 61 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Detect the pump start at the activation of the test cycle. For the check, it can be useful to activate the vacuum pump by Problem in vacuum means of the...

  • Page 62: Code "A" Alarm

    Sterilizers Bravo G4 - TECHNICAL MANUAL 6.2. CODE “A” ALARM (**) 1 = OK (warning) - Tap OK on pop-up window. 2 = OK + door unlock / RESET - Keep OK pressed for 3 seconds on the pop-up window and the autoclave will start the procedure to open the door in full safety.
  • Page 63 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Maximum level reached in filling tank Stop the device. with Automatic Filling A042 Maximum level or Pure. reached in filling Check the correct operation of WATER FILLING tank with Automatic...
  • Page 64 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check the integrity of PT1 wiring, A111 PT1 wiring problem - paying special attention to the wiring check. connector on the PCB. CHAMBER PROBE PT1 probe short Check PT1 resistive value...
  • Page 65 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY A120 PROCESS BOARD Reference heating Check R143 heating Replace the PCB. ERROR element 1k0 error. element on the PCB. CONTACT TECH.
  • Page 66 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY A134 Check the correct operation of the Solenoid valve 4 solenoid valve from the Service Error from solenoid broken. SOLENOID VALVE menu and replace it if necessary.
  • Page 67 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check quantity and arrangement Autoclave loading of the load inside the chamber. problem - load check. Follow the instructions in the User Manual.
  • Page 68 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check quantity and arrangement Autoclave loading of the load inside the chamber. problem - load check. Follow the instructions in the User Manual.
  • Page 69 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check: - Filling tank filter and water injection pump inlet filter. - Correct activation of water pump and opening of EV6. For the check, it can be useful Steam generator water to activate the water pump and...
  • Page 70 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Detect the vacuum pump start. For the check, it can be useful to activate the vacuum pump by means of the Vacuum pump SERVICE/COMPONENT activation problem -...
  • Page 71 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check: - Filling tank filter and water injection pump inlet filter. - Correct activation of water pump and opening of EV6 For the check, it can be useful Steam generator water to activate the water pump and...
  • Page 72 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check: - Filling tank filter and water injection pump inlet filter. - Correct activation of water pump and opening of EV6. For the check, it can be useful to activate the water pump and EV6 Steam generator water...
  • Page 73 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Detect the vacuum pump start. For the check, it can be useful to activate the vacuum pump by means of the SERVICE/COMPONENT Vacuum pump activation TEST/OTHER COMPONENTS -...
  • Page 74 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check: - Filling tank filter and water injection pump inlet filter. - Correct activation of water pump and opening of EV6. For the check, it can be useful to activate the water pump and EV6 Steam generator water...
  • Page 75 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Check quantity and arrangement of Autoclave loading the load inside the chamber. problem - load check. Follow the instructions in the User Manual.
  • Page 76 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Clean and/or replace the slider and EV3 shaft does not slide. the slider holder of EV3 - see technical EV3 dirty.
  • Page 77 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY Clean or replace the Vacuum pulse during bacteriological filter (see drying not performed Maintenance Appendix in the user within the timeout. manual).
  • Page 78 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND Possible causes / ERROR MESSAGE ON THE DESCRIPTION Solution Checks OUTPUT (**) DISPLAY A362 Chamber PD PRESSURE Vacuum phase error Clean the chamber drain filter (see depressurisation not DOWNSTROKE during decreases in Maintenance Appendix in the User completed within the TIMEOUT...

  • Page 79: Code "H" Hazard

    Sterilizers Bravo G4 - TECHNICAL MANUAL 6.3. CODE “H” HAZARD (**) 1 = OK (warning) - Tap OK on pop-up window. 2 = OK + door unlock / RESET - Keep OK pressed for 3 seconds on the pop-up window and the autoclave will start the procedure to open the door in full safety.
  • Page 80 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) Discharge solenoid Check EV1 slider/slider holder - valve EV1 does not see sheet ST02 - MANIFOLD. open properly. During the Firmware version not Check/update autoclave FW process, PT1 value...
  • Page 81 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) Check generator safety The steam generator thermostat. does not work properly. See sheet ST01 - Steam generator. There is a leakage from Check the pipes connected to During the one of the pipes...
  • Page 82 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) Check: - Steam generator. - Generator heating element The steam generator connection wirings. does not work properly. - EV6 activation. - Vibration pump.
  • Page 83 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) The chamber PT1 Replace PT1 probe - see sheet temperature probe is ST5-PT1. damaged. Check EV6 activation. Check vibration pump. PT1 overheating.

  • Page 84: Code "S" System Error

    Sterilizers Bravo G4 - TECHNICAL MANUAL 6.4. CODE “S” SYSTEM ERROR (**) 1 = OK (warning) - Tap OK on pop-up window. 2 = OK + door unlock / RESET - Keep OK pressed for 3 seconds on the pop-up window and the autoclave will start the procedure to open the door in full safety.
  • Page 85 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) S011 Check the proper closing of the Printer: door open. Printer: door open. PRINTER: DOOR door. OPEN S012 PRINTER: NOT Printer configuration error.
  • Page 86 Sterilizers Bravo G4 - TECHNICAL MANUAL CODE AND MESSAGE Possible causes / ERROR DESCRIPTION Solution ON THE DISPLAY Checks OUTPUT (**) S040 RESET following the instructions. Error while saving a Try to restart the program a second Control software LOG SAVE ERROR Log in the Flash time.

  • Page 87: Technical Sheets

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7. TECHNICAL SHEETS WARNING: Before performing any type of operation on internal components, turn off the autoclave and disconnect the mains cable. 7.1. TECHNICAL SHEET ST01 - STEAM GENERATOR (ON ALL MODELS) The STEAM GENERATOR is secured to the rear/left upright of frame and can be accessed after removing the left side panel and the rear panel.
  • Page 88 Sterilizers Bravo G4 - TECHNICAL MANUAL Replacing the heating element Remove the 2 fastening screws and their double insulating washers. Open the lower section of the heat insulator, remove the retaining screw that holds the heating element in place, withdraw the heating element from its seat in the middle of the central core. Insert the new heating element gradually to let air flow out and push until fully home.
  • Page 89 Sterilizers Bravo G4 - TECHNICAL MANUAL GENERATOR HEATING ELEMENT TO GENERAL CARD CONNECTION Autoclave main board Heating element connection Safety thermostat TECHNICAL SHEETS...
  • Page 90 Sterilizers Bravo G4 - TECHNICAL MANUAL PT2 PROBE TO GENERAL CARD CONNECTION PT2 wiring connection Water inlet Heating element Cylindrical outer body PT2 probe Safety thermostat Inner core Steam outlet TECHNICAL SHEETS...
  • Page 91 Sterilizers Bravo G4 - TECHNICAL MANUAL Steam generator complete with heat insulation TECHNICAL SHEETS...

  • Page 92: Technical Sheet St02 - Manifold

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.2. TECHNICAL SHEET ST02 - MANIFOLD WARNING: The service activity on this component requires the side covers removal. Once the intervention has been completed, correctly refit all covers and carry out the SAFETY TEST (including dielectric strength and ground continuity tests). The MANIFOLD is positioned on the left side of the chamber.

  • Page 93: Technical Sheet St03 - Door Closing Unit

    Sterilizers Bravo G4 - TECHNICAL MANUAL For EV4 only, proceed as follows: Disconnect the power wiring (2 wires) from the coil (note down the colours before disconnecting them). Remove the locking clamp to disconnect the pipe fixed to the upper fitting. Unscrew the upper pipe holder fitting complete with intermediate fitting.
  • Page 94 Sterilizers Bravo G4 - TECHNICAL MANUAL The latter, once activated, is screwed to the threaded bushing fitted on the porthole support crossbar, making the porthole move until the door is closed and then locked. To ensure a silent rotation and a better resistance to effort, the shaft rotates on a ball slewing ring positioned inside the front support of the servomotor unit.
  • Page 95 Sterilizers Bravo G4 - TECHNICAL MANUAL Replacing the door closed microswitch - With the door open, disconnect the microswitch connectors (note down the position of connections). - Remove the 2 screws and the retaining washers. - Position the new microswitch, fixing the 2 screws and washers, connect the wiring. Replacing the door ajar microswitch - With the door open, disconnect the microswitch connectors (note down the position of connections).

  • Page 96: Technical Sheet St04 - Pressure Transducer - Safety Pressure Switch

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.4. TECHNICAL SHEET ST04 - PRESSURE TRANSDUCER - SAFETY PRESSURE SWITCH PRESSURE TRANSDUCER The pressure transducer detects the internal pressure during the various cycle phases and generates an electrical signal that is sent to the main PCB. WARNING: No repair interventions can be performed on the pressure transducer.
  • Page 97 Sterilizers Bravo G4 - TECHNICAL MANUAL Should it be necessary to replace the safety pressure switch: Remove the right-side external covering panel. Remove the protective cover of the main PCB, which is held in place by 5 snap locks and a screw. Fully unscrew the ring nut retaining the TEFLON pipe from the lower fitting of the pressure switch, slide the pipe out of the fitting.
  • Page 98 Sterilizers Bravo G4 - TECHNICAL MANUAL Pressure transducer TECHNICAL SHEETS...

  • Page 99: Technical Sheet St05 - Pt1 Probe - Chamber Temperature Reading

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.5. TECHNICAL SHEET ST05 - PT1 PROBE - CHAMBER TEMPERATURE READING WARNING: The service activity on this component requires the side covers removal. Once the intervention has been completed, correctly refit all covers and carry out the SAFETY TEST (including dielectric strength and ground continuity tests).
  • Page 100 Sterilizers Bravo G4 - TECHNICAL MANUAL PT1 PROBE complete with fastening ring nut PT1 actual reading at 130.4°C (266.72°F) PT1 wiring connection TECHNICAL SHEETS...

  • Page 101: Technical Sheet St06 - Door Adjustment

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.6. TECHNICAL SHEET ST06 - DOOR ADJUSTMENT Worm screw Threaded bushing The image above indicates the optimal value - equal to 5.3mm (0.21 inches) - read with the door locked, between the outer surface of the threaded bushing, fitted on the door crossbar, and the head of the worm screw, activated by the door closing system.

  • Page 102: Technical Sheet St07 - Conductivity Sensor

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.7. TECHNICAL SHEET ST07 - CONDUCTIVITY SENSOR WARNING: The service activity on this component requires the side covers removal. Once the intervention has been completed, correctly refit all covers and carry out the SAFETY TEST (including dielectric strength and ground continuity tests).

  • Page 103: Technical Sheet St08 - Vibration Pump Unit

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.8. TECHNICAL SHEET ST08 - VIBRATION PUMP UNIT WARNING: The service activity on this component requires the side covers removal. Once the intervention has been completed, correctly refit all covers and carry out the SAFETY TEST (including dielectric strength and ground continuity tests).

  • Page 104: Technical Sheet St09 - Main Pcb - Replacement Procedure

    Sterilizers Bravo G4 - TECHNICAL MANUAL 7.9. TECHNICAL SHEET ST09 - MAIN PCB - REPLACEMENT PROCEDURE The service activity on this component requires the side cover removal. Once the intervention has been completed, correctly refit all covers and carry out the SAFETY TEST (including dielectric strength and ground continuity tests). New printed circuit board ref.
  • Page 105 Sterilizers Bravo G4 - TECHNICAL MANUAL MAIN PCB ref. 97668177 – REPLACEMENT PROCEDURE Switch OFF the unit. Disconnect the power supply cord from the mains. Remove the right-side cover, secured by 9 x screws, to gain access to main PCB. Remove the white plastic protection cover.
  • Page 106 Sterilizers Bravo G4 - TECHNICAL MANUAL Disconnect all cables from main PCB. Pay careful attention to the relevant positions/plug no. Proceed with main PCB removal, secured by 1 screw (left/lower corner) and 7 snap supports. Install new PCB, taking care of the correct snap support insertion.
  • Page 107 Sterilizers Bravo G4 - TECHNICAL MANUAL Step 1 - Display calibration This action is required to calibrate the touch screen sensitive area. Touch the LCD screen with a pen tip, touching each of the 4 crosses (+) shown in sequence. Step 2 –...
  • Page 108 Sterilizers Bravo G4 - TECHNICAL MANUAL Step 1 – Main board FW update request Answer NO since the main board FW upload has already been completed. Step 2 – Connectivity module FW update request Confirm YES to activate the upload. A pop-up message is displayed while running the cloud FW update process.
  • Page 109 Sterilizers Bravo G4 - TECHNICAL MANUAL Once the main board FW & connectivity module FW uploads are complete, proceed with the recovery of: - Device serial no. - PT1 – chamber temperature probe value. Both required actions can be made using the dedicated controls available in the SERVICE MENU. DEVICE SERIAL No.

  • Page 110: Technical Maintenance

    Sterilizers Bravo G4 - TECHNICAL MANUAL 8. TECHNICAL MAINTENANCE In addition to correct use, the user performs regular basic maintenance in order to guarantee efficient operation over the device’s entire life. In order to grant full device efficiency, additional routine checks with regular periodic check-ups must be performed by Technical Service.

  • Page 111: Scheduled Maintenance Messages

    Sterilizers Bravo G4 - TECHNICAL MANUAL 8.2. SCHEDULED MAINTENANCE MESSAGES The sterilizer periodically displays warning messages relevant to "routine" maintenance operations, required to ensure the proper operation of the device. Press DONE to confirm that the required operation has been made.

  • Page 112: Door Lock Lubrication

    Sterilizers Bravo G4 - TECHNICAL MANUAL 8.3.5. DOOR LOCK LUBRICATION By using a clean cloth, remove any residues from the bushing and the screw. Lubricate the inside of the bushing on the sterilizer door with a film of the silicon-based grease provided (as shown in the figure).

  • Page 113: Door Gasket Replacement

    Sterilizers Bravo G4 - TECHNICAL MANUAL 8.3.8. DOOR GASKET REPLACEMENT Before proceeding, open the door then switch off the device. Remove the old gasket from the door simply pulling it out by hands (no tools required). Clean the door gasket seat, to ensure it is debris-free. Install the new door gasket by pressing it into its seat, starting from the top/bottom.

  • Page 114: Water Tank Cleaning

    Sterilizers Bravo G4 - TECHNICAL MANUAL 8.3.9. WATER TANK CLEANING Bravo G4 are equipped with two water tanks:  Clean water on upper right side.  Used water on upper left side. Both inspectable and cleanable. To gain access to the water tanks, proceed with the following actions. WARNING: Before performing...
  • Page 115 Sterilizers Bravo G4 - TECHNICAL MANUAL Anti-condensation cover removal. Unscrew 8x screws, securing the plates fastening the anti- condensation cover to the water tanks. Remove the plates. Lift and remove the anti-condensation cover. Water tanks cleaning. Clean and disinfect filters and internal walls only with a disposable wipe/cloth soaked in 70% ethyl alcohol.

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