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Summary of Contents for Comen NC5
- Page 1 Vital Signs Patient Monitor Service Manual SHENZHEN COMEN MEDICAL INSTRUMENTS CO., LTD...
- Page 2 Comen Company shall not assume responsibility for the incidental or consequential damages resulting from the errors in this manual or from the provision, actual performance and use of this manual. Comen Company shall not provide the proprietary right vested by patent law to any third party. Comen Company shall not assume legal responsibility for the legal consequences resulting from violating the patent law and the rights of any third party.
- Page 3 Passwords A password may be required to access different modes within the monitor. The passwords are listed below: Demo mode: 5188 User maintenance: 5188 Factory maintenance: 2016...
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Page 4: Table Of Contents
2.3 Service Procedure ..........................6 2.3.1 Fill in the Service Claim Form (SCF) ..................6 2.3.2 Send COMEN the SCF and Select a Solution ................6 2.3.3 Obtain the RMA Form ......................7 2.3.4 Send the Parts to COMEN ......................7 2.3.5 Contact Information ......................... - Page 5 4.6 Troubleshooting Guide ........................18 4.6.1 Power On/Off Failures ......................18 4.6.2 Display Failures ........................19 4.6.3 Battery Problem ........................19 4.6.4 Touch screen Failures ......................20 4.6.5 ECG failures ........................... 20 4.6.6 SPO2 Failures ......................... 21 4.6.7 NIBP Failures ......................... 22 4.6.8 RESP Failures .........................
- Page 6 7.7 Removing alarm LED board ......................40 7.8 Removing the LCD Screen & Touch Screen LED ................41 7.9 Removing the power switch board ....................42 7.10 Removing the function module ....................... 43 7.11 Removing the battery ........................43 7.12 Removing the side connection board ....................44 7.13 Removing the DC supply power and SPO2 board ................
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Page 8: Chapter 1 Safety
Do not open the enclosure of this instrument to avoid the possible electric shock hazard. The maintenance and upgrading of this monitor must be conducted by the service personnel trained and authorized by COMEN The disposal of packaging materials shall comply with the local laws and regulations or the waste disposal rules and regulations of the hospital. -
Page 9: Cautions
patient from being constricted or suffocated or the cables from getting entangled and keep the patient free from electrical interference. Do not use mobile phone near the monitor, because the mobile phone will generate a very strong radiation field and disturb the functions of the monitor. ... -
Page 10: Notes
When this instrument and its accessories are about to exceed the service life, they must be disposed of according to local relevant laws and regulations or the rules and regulations of the hospital. 1.1.4 Notes Notes Please install the equipment in a place that is convenient for observation, operation and maintenance. - Page 11 Packaging Symbols Limit of stacking layers Fragile Rainproof...
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Page 12: Chapter 2 Warranty And Service
Chapter 2 Warranty and Service 2.1 Warranty Terms COMEN provides 24 months warranty for the device (main unit) and 6 months for the accessories. The warranty period begins on the date products are shipped to customer. If a customer promptly notifies us of customer’s warranty claim hereunder, we will either repair, adjust or replace (with new or exchange... -
Page 13: Service Procedure
Fill in the SCF with detailed information including: Model Name, Serial Number (SN)and Problem Phenomena. COMEN should not have any obligation to take over the case without this information. The form can be gotten from our company’s Service Department. 2.3.2 Send COMEN the SCF and Select a Solution Once the service department receives the fully filled SCF, our engineer will offer a solution in three working days. -
Page 14: Obtain The Rma Form
Out of Warranty After receiving the RMA form from the service department, the customer sends defective parts to COMEN in advance. We will analyze the problems and discuss with the customer about either repairing or replacing the part(s). Once the maintenance fee is invoiced and paid, we will make sure to dispatch good part(s) to the confirmed address. -
Page 15: Contact Information
Please send back the parts after our company’s confirmation. 2.3.5 Contact Information If you have any question about maintenance, technical specifications or malfunctions of devices, do not hesitate to contact us. COMEN International After-Sale Dept. Monday to Friday 09:00-18:00 (UTC +08:00) Tel: +86-755-26431236（ext. 333）... -
Page 16: Chapter 3 Principle Introduction
Chapter 3 Principle Introduction 3.1 NC5 System Principle Block Diagram Thermometer AC input wireless receiver module Speaker LCD screen AC power module Recorder/Printer Rear shell interface board Touch screen DC power module Power on/off button (Including SPO2 Key board Main board... -
Page 17: Module Introduction
3.2 Module Introduction 3.2.1 Main board The main board is the heart of the patient monitor. It implements a series of tasks including input& output control, data storage and processing, display processing, system control, communication management, printing management and alarming, etc. The main board comprises the core board and bottom board. -
Page 18: Functional Boards
3.2.2 Functional Boards 3.2.2.1 ECG board This is a single channel ECG board. Receiving ECG signal and process ECG signal, then send to main board. Pin ID Description To DC power supply board To side panel connection board Working voltage... - Page 19 3.2.2.2 NIBP module NIBP module comprise of air pump, air valve and PCB board. it is in charge of inflation, pressure detection, and over pressure protection, etc. Pin ID Description Working Voltage 4Pin, power socket 5V、12V 2Pin, gas pump socket 4Pin, gas valve socket 3.2.2.3 Ear thermometer wireless receiver module Thermometer wireless receiver module is in charge of receiving thermometer’s measurement signal, then...
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Page 20: Dc Power Supply Board
Description Working Voltage 4pin，to main board 3.3V 3.2.3 DC Power Supply Board The power module is located at the rear shell, and SPO2 board is on the DC power supply board. it contains charging & power management , distributed different DC power to main board ,ECG board, NIBP module, rear shell interface board and battery charging. -
Page 21: Button Board
Pin ID AC input socket To DC board Description socket Working voltage 100-250V(AC) Module Function Supply power to DC power Board 3.2.5 Button Board The button board, located at the lower part of the monitor’s front panel,press NIBP measurement button, signals are sent to main board CPU by the single chip processor on button board. -
Page 22: Spo2 Module
Pin ID To Main board P1 Description 19V,12V,5V Working voltage 3.2.6 SPO2 Module There are 3 types of SPO2 modules: Analog SPO2, Masimo SPO2 and Nellcor SPO2 module. The SPO2 board implements SPO2 signals collection, amplified simulation, relative digital/analog conversion and signal processing. The pulse extent of optical signal changes during monitoring. -
Page 23: Masimo Spo2 Module
3.2.8 MASIMO SPO2 Module Interface socket Pin ID To DC board socket Description Working voltage 3.2.9 NELLCOR SPO2 Module Interface socket Pin ID To DC board socket Description Working voltage... -
Page 24: Chapter 4 Troubleshooting
Chapter 4 Troubleshooting 4.1 Introduction In this chapter, patient monitor problems are listed along with possible causes and recommended corrective actions. Refer to the tables to check the patient monitor, identify and eliminate the troubles. The troubles we list here are frequently arisen difficulties and the actions we recommend can correct most problems, but not all of them. -
Page 25: Technical Alarm Check
4.5 Technical Alarm Check Before troubleshooting the patient monitor, check for technical alarm message. If an alarm message is presented, eliminate the technical alarm first. For detailed information on technical alarm message, possible cause and corrective action, refer to the patient monitor’s User Manual. 4.6 Troubleshooting Guide 4.6.1 Power On/Off Failures Symptoms... -
Page 26: Display Failures
4.6.2 Display Failures Symptoms Possible Cause Corrective Action 1.Check that if cables from the LCD to the Cables connected Main board Main board is connected well. with LCD screen defective or Integrated display is 2. Check that the cable and connector are connected poorly blank but the patient not damaged. -
Page 27: Touch Screen Failures
Recharge the battery for about 4 hours, check out how long it can operate and Battery is defective check out its voltage with a multimeter Please refer to our international after sales Dept about the exact values Battery can’ t be recharge The battery cable or connect Check that if battery cable is in good socket poorly connected or... -
Page 28: Spo2 Failures
The connection between the Reconnect ECG board to DC power supply ECG board and DC power board supply board The cable from the ECG module to side plate socket is not Reconnect them connected well ECG module defective Replace the ECG module Main board defective Replace the main board DC power board defective... -
Page 29: Nibp Failures
The SPO2 probe is defective Replace the SPO2 probe The connection between the SPO2 module and DC power supply board Reinstall the SPO2 board poorly connected The SPO2 no waveform The connection between the DC Check the socket of DC power supply board and and value power supply board and side panel side panel connection board socket no damage or... -
Page 30: Resp Failures
Main board is defective Replace the main board Check out the type of the patient in the patient The type of the patient is wrong management Inflation There is air leakage in the Check out the cuff ,the NIBP tube or the repeatedly but no accessories interface socket... -
Page 31: Button And Knob Failures
The temperature is lower than Check out the TEMP is in the normal range the monitor can measure range The ear thermometer is Change another ear thermometer defective The connection between the main board and thermometer Reconnect the cable or replace the cable if receiver board poorly damaged NO TEMP values... -
Page 32: Recorder Failures
Main board is defective Replace the main board 4.6.11 Recorder Failures Symptoms Possible Cause Corrective Action Paper is installed reversed Re-install the paper The record door does not close Check out door and indicator light well The type of paper is wrong Install the right paper 1. -
Page 33: Technical Alarm Messages
Use the incorrect software for patient Software is incorrect monitor USB-stick defective or can’t Chang the usb-stick for testing be detected by patient monitor Software is damaged or Check the software name or change the incorrect name software Fail to upgrade ”no system Check the software on another patient tips”... -
Page 34: Chapter 5 Software Upgrade
Restart the monitor and check the software version; NOTE Make sure you have confirmed with COMEN Customer Service Department the software package is fit for the software upgrade for the monitor you are currently operating on. Disconnect the patient monitor from patient before software upgrade;... -
Page 35: Chapter 6 Performance Verification
Chapter 6 Performance Verification 6.1 NIBP Test 6.1.1 NIBP Leakage Test Tools required: NIBP cuff for adult patient Appropriate tubing Cylinder Follow this procedure to perform the test: Set [Patient type] to [Adult]. Connect the NIBP cuff with the NIBP socket on the monitor. Apply the cuff to the cylinder as shown below. -
Page 36: Nibp Verification
6.1.2 NIBP Verification Tools required: T-shape connector Appropriate tubing Balloon pump Metal Vessel with volume 500 ± 25 ml Reference manometer (calibrated with accuracy equal to or greater than 1 mmHg) Follow this procedure to perform a NIBP calibration: Connect the equipment as shown below. -
Page 37: Ecg Test
6.2 ECG Test 6.2.1 ECG Performance Test Tool required: Fluke Medsim 300B, MPS450 or other patient simulator recommended Follow this procedure to perform the test: Connect the patient simulator with the ECG module using an ECG cable. Set the patient simulator as follows: ECG sinus rhythm, HR=80 bpm with the amplitudes 1mV. Check the ECG waves are displayed correctly without noise and the displayed HR values within 80 ±... -
Page 38: Temp Calibration
Connect the patient simulator to the module using a non ESU-proof cable and set lead IIas the respiration lead. Configure the simulator as follows: lead II as the respiration lead, base impedance lineas 1500 Ω; delta impedance as 0.5 Ω, respiration rate as 40 rpm. Check the RESP wave is displayed without any distortion and the displayed RESP value is within 40 ±... - Page 39 5. Press the measurement button, the screen will display 25.0 °C (as shown in Figure 2), then jump to an AD value display (Figure 3), At this point, align the probe with the open cavity of the sink 1 (Figure 4). After the AD value is stable (about 2-3 seconds), press the measurement button again to complete the 25°C calibration.
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Page 40: Temp Accuracy Detection
Fig 4 Fig 5 Fig 6 Calibration button Fig 7 Fig 8 6.4.2 TEMP accuracy detection standard requirement: Maximum allowable error: ±0.2°C at 35°C-42°C. Detection method: Place the Fluke high-precision temperature probe in the BB70 black body calibration source and adjust the BB70 black body calibration source to ensure that the calibration source temperature is stable at 35 °C, 38.5 °C, and 42 °C, respectively, so that the ear thermometer measures the corresponding temperature that BB70 black body source calibration temperature, the error meets the standard requirements, and the data is... - Page 41 measure 35°C.
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Page 42: Chapter 7 Disassemble Procedure
Only qualified service personnel (biomedical engineers or technicians) should open the monitor housing, remove and replace components or make adjustments. If your medical facility does not have qualified service personnel, contact COMEN or your local COMEN representative. Caution High-Voltage – Voltages dangerous to life are present in the instrument when it is connected to the mains power supply. -
Page 43: Separate The Front And Rear Housing
7.2 Separate the Front and Rear Housing 1. Unscrew the 3KM3.0×6.0mm screws at back side upper part; 2. Unscrew the 3 PWM 3.0×6.0mm screws at the bottom of monitor; 3. Unplug the cables that connect to the front panel to separate the front panel & rear housing;... -
Page 44: Removing The Printer
7.3 Removing the Printer Separate the front and rear housing as described in Chapter7.2; Remove the printer cable which connects to main board; Open the print cap then remove the 2PB 3.0×6.0mm screws and then take off the printer;... -
Page 45: Removing The Main Board
7.4 Removing the Main Board Separate the front and rear housing as described in Chapter7.2; Disconnect the cables that connect to the main board; Unscrew 4 PB3.0×6.0mm screws to remove the main board;... -
Page 46: Removing Keyboard
7.5 Removing keyboard Separate the front and rear housing as described in Chapter7.2; Remove the cable from keypad and remove the 2PB 3.0×6.0mm screws from keypad; Take out the NIBP rubber pad. 7.6 Removing the thermometer wireless receiver board Separate the front and rear housing as described in Chapter7.2; Remove the cable from the thermometer wireless board and remove the 2 PB 3.0×6.0mm screws from the board. -
Page 47: Removing Alarm Led Board
7.7 Removing alarm LED board separate the front and rear housing as described in Chapter 7.2; remove the cable from the alarm lamp board and 3PB3.0×5.0mm screws from the board. -
Page 48: Removing The Lcd Screen & Touch Screen Led
7.8 Removing the LCD Screen & Touch Screen LED Caution: Do not touch the LCD & touch screen panel Disassemble the LCD in an environment as dust-free as possible Touch screen panel is fragile, be careful in installation or disassembly Separate the front and rear housing as described in Chapter7.2;... -
Page 49: Removing The Power Switch Board
7.9 Removing the power switch board Separating the front and rear housing as described in Chapter7.2; Disconnect cable on power switch board and 1PB3.0×6.0mm screw from power switch board; Take out the frame and get the board out. -
Page 50: Removing The Function Module
7.10 Removing the function module Separating the front and rear housing as described in Chapter7.2; Removing the power switch board as describe in Chapter7.9; Remove all the cable connection and unscrew the 6 PB3.0×6.0mm screws; Removing the function module assembly outside until have the space to use the finger to unplug the battery connection and then take the block out. -
Page 51: Removing The Side Connection Board
7.12 Removing the side connection board Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1; Remove the air connection hose and unscrew 2PB3.0×6.0 mm screws and then pull out the side connection board. -
Page 52: Removing The Ecg Board
7.14 Removing the ECG board Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1; Remove the side connection board as describe in Chapter 7.10.3; Unscrew the 3PB 3.0×6.0mm screws and then take off the ECG board. -
Page 53: Removing The Nibp Board
7.15 Removing the NIBP board Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1; Remove the side connection board as describe in Chapter 7.10.3; Unscrew the 4PB 3.0×6.0mm screws and then take off the NIBP board. -
Page 54: Removing The Data Connection Board
7.16 Removing the data connection board Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1; Remove the cable connection, lose the M8 nut and unscrew the 2PB 3.0×6.0mm screws and 3PM 3.0 ×6.0mm screws and then take the connection board out. -
Page 55: Removing The Ac Power Supply Module
7.17 Removing the AC power supply module Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1; remove the cable connection and unscrew 4PB3.0×6.0mm screws. 7.18 Removing the AC power socket Separating the front and rear housing as described in Chapter 7.2;... -
Page 56: Removing The Speaker
7.19 Removing the speaker Separating the front and rear housing as described in Chapter 7.2; Removing the power switch board as describe in Chapter 7.9; Remove the function block as describe in Chapter 7.10.1 Remove the cable connection and unscrew the 2PB 3.0×6.0mm screws and then take the speaker out. -
Page 57: Removing The Handle
7.20 Removing the handle Separating the front and rear housing as described in Chapter 7.2; Unscrew 2PWM3.0×10.0mm screws;...
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