GE S5 Owners Manual
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S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC 11 Document no. M1187338-003 3 Service procedures 3.1 General service information The field service of the Extension Modules for FM is limited to replacing faulty circuit boards or mechanical parts. The circuit boards should be returned to GE Healthcare for repair. GE Healthcare is always available for service ad vice. Please provide the unit serial number, full type designation and a detailed fault description. WARNING Only trained personnel with appropriate equipment should perform the tests and repairs outlined in this section. Unauthorized se rvice may void warranty of the unit. CAUTION The module electronics can only be repaired and calibrated at the factory. 3.1.1 MiniC measuring unit WARNINGThe miniC measuring unit can only be repaired and calibrated at the factory. Attempts to repair/calibrate the unit elsewhere will adversely affect operation of the unit. In case of failure, the complete miniC unit should be sent to GE Heal thcare for factory exchange. WARNING Handle the water trap and its conten ts as you would any body fluid. Infectious hazard may be present. Serviceable parts •Mini D-fend •Mini D-fend O-rings •Nafion tube •Air filter •Pump NOTE: After any component replacement, see chapter “Adjustments and calibrations”. Calibration interval six months. Preventive maintenance once a year including the change of Nafion tube and the O-rings of water separator, pump check and calibration, leak test and absolute pressure sensor check. 3.1.2 Recorder unit Serviceable or exchangeable parts •Recorder board •Thermal plotter 3.2 Service check These instructions include complete procedures for a service check. The service should be performed after any service repair. Additionally, the service check procedures can also be used for determining possible failures. The procedures should be performed in ascending order.
Datex-Ohmeda S/5 FM 12 Document no. M1187338-003 The instructions include a check form (“APPENDIX A:”) which should be filled in when performing the procedures. The symbol in the instructions means that the check form should be signed after performing the procedure. 3.2.1 Recommended tools 3.2.2 Recommended parts Detach the module box cover by removing the five screws from the locking side of the module. Be careful with the flex cable, when opening the cover. Remove the grey plastic shield over the miniC unit. 3.2.3 Inspection General 1. Check internal parts •all screws are tightened properly •all cables are connected properly •tubes are not pinched and there are no sharp bends on them •all tubes are connected properly •EMC covers are attached properly •there are no loose objects inside the module N-F(C)REC: Open the paper compartment hatch and take out the paper roll, if installed. Remove any paper chaff from the paper compartment. Clean the thermal printhead and the small glass window in front of the static brush with a cotton swab dipped in isopropyl alcohol. Avoid contact with the rubber paper roller. Tool Order No. Notes Screwdriver Pozi-drive, Torx T10 Ambient pressure manometer Amb. Press. can be checked from local meteorological station Flowmeter TSI mode l 4140 recommended Flow cassette 50/1.1 873812-HEL Calibration gas 755580* (gas) Contains 5 CO 2 and air Regulator 755534-HEL E-PSM / E-PSMP Patient simulator Recorder paper 74205-HEL
S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC 13 Document no. M1187338-003 NOTE: Be careful to limit the application of al cohol to the thermal printhead and the window. Leave the paper compartment empty and close the hatch. 2. Check external parts •all connectors are intact and attached properly •the module box and the locking system are intact Reattach the module and check that the locking system moves properly. CO2 measurement 3. Check Mini D-Fend Detach the Mini D-fend. Che ck the condition of the rubber O-rings on the metal Mini D- fend connectors, located in the module front cover. If necessary, detach the connectors by first disconnecting the tubes, then removing the locking rings from the back of the front cover. Replace the Mini D-fend and sampling line with new ones. NOTE: Use only Datex-Ohmeda sampling lines in order to ensure proper functioning. Connect the Extension Module, N- FC or N-FCREC to the monitor. Turn on the monitor. Configure the monitor screen so that the CO 2 curve is shown, for example as follows: Monitor Setup - Screen 1 Setup - Waveform fields - Field 6 - CO2 Digit Fields Lower Field 1 - Gases 4. Module software Wait until the message ‘Calibrating gas sensor’ disappears from the screen, then enter the service menu. Monitor Setup - Install/Service (password 16-4-34) - Service (password 26-23-8). Write down the information regarding the ExtensionModule software. 5. Module bus communication Enter the service menu General: Parameters - Gas Unit - General Check that the Timeouts, Bad checksums and Bad c-s by mod values are not increasing faster than by 5 per second.
Datex-Ohmeda S/5 FM 14 Document no. M1187338-003 If one of the values is increasing faster, it indicates a failure in module bus communication. 6. Flow measurement offset Enter the service menu Gases: Gas Unit - Gases Check that the flow measurement offset, i.e. the shown sample Zero value is within ±10 ml/min. 7. Ambient pressure Check that the shown Ambient value corresponds with the current ambient pressure (±20 mmHg). 8. Zero valve checkFeed calibration gas and check that the gas readings in the service menu correspond with the values on the gas bottle sticker. Keep feeding gas, then activate the zero valve from the menu. The CO 2 reading should drop back to near 0%. Set back the Zero valve to state MEAS. 9. Nafion tube Replace the Nafion tube, if necessary . NOTE: The Nafion tube should be replaced annually. 10. Leak testPerform the sampling system leak test. Connect a flow cassette with high flow re sistance value (50/1.1) to the end of the sampling line and start following the Amb-Work value in the service menu. When the value exceeds 130 mmHg, connect the other port of the flow cassette to the sample gas out connector and switch off the pump. Wait until the pressure insi de the sampling system is stab ilized, then observe the shown Amb-Work value. The value, i.e. the pressure inside the sampling system should not drop more than 6 mmHg in 20 seconds. If the pressure drops more, first check the connections and repeat the test.
S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC 15 Document no. M1187338-003 11. Check the flow ratesWait until the Sample Flow valu e returns close to 150 ml/min. Connect a flow meter to the 3 meter sampling line and check that the flow (the flow meter reading) is within the following range: Sampling flow (ml/min) 135...165 If necessary, readjust the sampling flow: Select Sample gain adj from the menu. To increase the sampling flow, turn the Co mWheel counterclockwise. To decrease the flow, turn the ComWheel clockwise. A change of 0.050 in the Gain value ch anges the flow approximately 7.5 ml/min. After you have changed the gain, wait until the Sample Flow value on the screen returns near to the original, then check the flow meter reading again. 12. Working pressure Check that the Amb-Work value in the serv ice menu is within the following range: Amb-Work (mmHg) 20...50 13. Gas calibration Airway Gas - Gas Calibration NOTE: The calibration should not be performed before 30 minutes warm-up time. Use calibration gas 755580 (5% CO 2, about 20% O2) for calibrating the module with CO2 measurement. 14. Occlusion detection Block the tip of the sampling line with your finger and check that the message ‘Sample line blocked’ appears on the moni tor screen within 60 seconds. 15. Check D-fend Detach the mini D-fend and check that the message ‘Check D-fend’ appears on the monitor screen within 30 seconds. 16. Apnea detectionReattach the mini D-fend. Simulate at least 5 breaths by feeding calibration gas into the sampling line. Check that the shown gas information is correct.
Datex-Ohmeda S/5 FM 16 Document no. M1187338-003 Check that the monitor shows the message ‘Apnea’ within 30 seconds after you have stopped feeding the gas. Recorder 17. Paper compartment cleaning Open the paper compartment hatch and take out the paper roll, if installed. Remove any paper chaff from the compartment. Clean the thermal printhead and the small glass window in front of the static brush with a cotton swab dipped in isopropyl alcohol. Avoid contact with the rubber paper roller. NOTE: Be careful to limit the application of al cohol to the thermal printhead and the window. Leave the paper compartment empty and close the hatch. Configure the monitor screen so that all required parameters are shown, for example: Monitor Setup - Screen 1 Setup - Waveform Fields -Field 1 - ECG1 Field 2 - ECG2 Field 3 - P1 Field 4 - P2 Field 5 - PLETH Field 6 - OFF Plug in the Hemodynamic Module. Connect a patient simulator to the module and check that all connected parameters are shown on the screen. Preset recording settings: Record/Print - Record Waveforms - Waveform 1 - ECG1 Waveform 2 - P1 Waveform 3 - P2 Delay - Off Paper Speed - 6.25 Mm/S Length --> 30 S Record Trends - Graphic Trend 1 - Hr Graphic Trend 2 - P1 Monitor Setup - Install/Service (password 16-4-34) - Trends & Snapshot - Default Trend - Graph. Pt.Data&Trends - Trends - T ime Scale - 2 h 18. Cover state recognition Open the paper compartment cover. Check that the message ‘Recorder: Cover open’ appears on the screen. 19. Paper recognitionClose the paper compartment cover. Check that the previous message changes to Recorder: Out of paper’.
S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC 17 Document no. M1187338-003 Install a paper roll and close the cover. Check that the message ‘Recorder: Cover open’ disappears from the screen. 20. Quality of recordingPress the Start/ Stop key again and check that the quality of the recordings is acceptable. 21. Recording speed Press the RECORD WAVE key again and this time wait until the recording stops. Check that the length of the recorded waveform scale is 18.7 cm ( ±1.5 cm). Change the paper speed setting to 1 mm/s: Record/Print - Record Waveforms - Paper Speed - 1 mm/s Press the RECORD WAVE key and wait until the recording stops. Check that the length of the scale is now 3.0 cm ( ±0.5 cm). General 22. Electrical safety check Perform an electrical safety check and a leakage current test. 23. Functioning after electrical safety checkCheck that the module functions normally af ter performing the electrical safety check. 24. Final cleaning Turn off the monitor, disconnect and clean the module. •Fill in all necessary documents.
Datex-Ohmeda S/5 FM 18 Document no. M1187338-003 3.3 S/5 N-FCREC disassembly and reassembly CAUTION When reassembling the module, make sure that the tubes and cables are not pinched between the bo ards and the cover. To reassemble the module, reverse the order of the disassembly steps. 3.3.1 Instructions after replacing MiniC unit After replacing the MiniC unit: •perform the sampling system leak test •perform the occlusion test •perform the gas calibration 3.3.2 Before disassembly WARNINGWear a grounded, antistatic wristband when handling PC boards. Electrostatic discharge may damage components on the board. Disconnect the Extension Module from the monitor. Tools needed - screwdrivers, TORX; T8, T10, T15 - crosshead screwdriver; M15 - flat blade screwdriver - pinchers - antistatic wristband Disassemble the Extension Module 1. Remove the Mini D-fend. 2. Open the recorder unit paper cover and remove the paper roll, if installed.
S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC 19 Document no. M1187338-003 3. Unscrew the two pozidrive screws inside the recorder unit completely (the screws cannot be removed) and remove the recorder unit. 4. Remove the five screws (T8) on the side where the device plate is located. 5. Place the N-F(C)(REC) on a table the device plate side down. 6. Remove the two screws (T8) near the module bus connector. 7. Remove the module cover carefully. 8. Remove the EMC-cover and CO 2 unit insulator plate.
Datex-Ohmeda S/5 FM 20 Document no. M1187338-003 NOTE: The finger of the insulator plate secures the interconnection flex connector. While reassembling the insulator plate ensure that the finger supports the connector correctly. 9. Disconnect the Nafion an d silicon tubes from the mini D-fend connectors. NOTE: While reassembling the nafion tube ensure the correct routing for both modules. If the nafion tube is not correctly routed it may get bent or jammed when reassembling the cover. Bent or pinched tube can get permanently blocked. The block may appear later when the tube warms up. Correct nafion tube routing in N-FCREC module, arrow pointing at the mini D-fend connectors. Correct nafion tube routing in N-FC module, arrow pointing at the mini D-fend connectors. 10. Disconnect the gas out tube from the pump unit and remove the front panel unit.