Related Manuals for Comen CM300
Summary of Contents for Comen CM300
- Page 1 Three-Channel Electrocardiograph CM300 Service Manual Shenzhen Comen Medical Instrument Co., Ltd.
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Page 2: Table Of Contents
Chapter 3 Principle introduction ..................... 11 CM300 system principle block diagram ..............11 CM300 Module Introduction .................. 11 3.2.1 Main board (2410 core board + CM300 bottom board) ........11 3.2.2 3.2.2CM100_300 ECG Board ................. 12 3.2.3 R-type transformer: ..................13 3.2.4... - Page 3 Shenzhen Comen Medical Instruments co., ltd. 5.2.1 ECG Performance test ..................20 5.2.2 Print speed test ....................20 Chapter 6 Disassembling Procedure ....................22 Disassemble the rear panel ..................22 Separate the function board in the front panel............23 Disassemble the ECG board ..................
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Page 4: Chapter 1 Safety Guidance
Shenzhen Comen Medical Instruments co., ltd. Chapter 1 Safety Guidance Safety Information The design of the 3-channel electrocardiograph complies with international standard IEC 60601-1 Medical Electrical Equipment: General Requirements for Safety and IEC 60601-2-25 Particular Requirements for the Safety of Electrocardiographs etc. The classification of this equipment is Class І, type CF, which means a higher degree of protection against electric shock and the patient... -
Page 5: Warnings
Shenzhen Comen Medical Instruments co., ltd. 1.1.2 Warnings In order to use the electrocardiograph safely and effectively, avoiding possible dangers caused by improper operations, please read through the user manual and be sure to be familiar with all functions of the equipment and proper operation procedures before use. - Page 6 Shenzhen Comen Medical Instruments co., ltd. application. WARNING ♦ Only patient cable and other accessories supplied by our company can be used. Or else, the performance and electric shock protection can not be guaranteed. ♦ Be sure that all electrodes have been connected to the patient correctly before operation.
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Page 7: Cautions
Shenzhen Comen Medical Instruments co., ltd. connected with the potential equalization bus bar of the electrical installation. 1.1.2.2 Battery Care Warnings WARNING ♦ Improper operation may cause the battery to be hot, ignited or exploded, and it may lead to the declination of battery’s capacity. It is necessary to read the user manual carefully and pay more attention to warning messages. - Page 8 Shenzhen Comen Medical Instruments co., ltd. ♦ Be sure that there is no intense electromagnetic interference source around the equipment, such as radio transmitter or mobile phone etc. Attention: large medical electrical equipment such as electrosurgical equipment, radiological equipment and magnetic resonance imaging equipment etc.
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Page 9: Notes
Shenzhen Comen Medical Instruments co., ltd. 1.1.3.1 Cleaning & Disinfection Cautions CAUTION ♦ Turn off the power before cleaning and disinfection. If mains supply used, the power cord should be drugged out of the outlet also. And prevent the detergent from seeping into the equipment. -
Page 10: Chapter 2 Warranty And Service
Chapter 2 Warranty and Service 2.1 Warranty Terms COMEN provides an 18 months warranty for the warranted products (main unit) and 3 months for the accessories. The warranty period begins on the date products are shipped to customer. If a customer promptly notifies COMEN of customer’s warranty claim hereunder, COMEN will either repair, adjust or replace (with new or exchange replacement parts) COMEN’s products. -
Page 11: Service Procedure
Send COMEN the SCF and Select a Solution Once the service department receives the fully filled SCF, COMEN’s engineer will offer a solution in three working days. COMEN will follow out the case based on the two conditions below: ... -
Page 12: Obtain The Rma Form
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 13: Contact Information
Shenzhen Comen Medical Instruments co., ltd. 2.7.1 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) •... -
Page 14: Chapter 3 Principle Introduction
LCD Panel 3.2 CM300 Module Introduction 3.2.1 Main board (2410 core board + CM300 bottom board) The main board is the heart of the instrument. It consists of bottom board and core board (CPU board), it implements a series of tasks including CPU system, display processing, printing control, keyboard signal processing. -
Page 15: 2Cm100_300 Ecg Board
Shenzhen Comen Medical Instruments co., ltd. information. PIN ID CON7 CON10 CON11 CON12 To LCD adapter To ECG board Main board To recorder Description board Power socket Working voltage 20V（AC） Data storage, the CPU of the main unit, display circuit, network circuit, Module Function recorder circuit and I/O interface. -
Page 16: R-Type Transformer
Shenzhen Comen Medical Instruments co., ltd. 3.2.3 R-type transformer: PIN ID Description Working voltage Module Function Voltage transformation to feed main board 3.2.4 LCD Adapter Board PIN ID To LCD panel To main board Membrane Description button Working voltage Module Function... -
Page 17: Chapter 4 Trouble Shooting
Shenzhen Comen Medical Instruments co., ltd. Chapter 4 Trouble Shooting Introduction In this chapter, electrocardiograph problems are listed along with possible causes and recommended corrective actions. Refer to the tables to check the electrocardiograph, 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 18: Troubleshooting Guide
Shenzhen Comen Medical Instruments co., ltd. message is presented, eliminate the technical alarm first. For detailed information on technical alarm message, possible cause and corrective action refer to the electrocardiograph’s Operation Manual. Troubleshooting Guide 4.5.1 4.5.1 Failure to power on with AC supply... -
Page 19: Abnormal Screen Display
Shenzhen Comen Medical Instruments co., ltd. not connect well. is reliably connected System failure replace a main board LCD screen defective replace a LCD screen 4.5.4 Abnormal screen display Symptoms Possible Cause Correction Action LCD adapter board or LCD cable not... -
Page 20: Electromyograhic Disturbance
Shenzhen Comen Medical Instruments co., ltd. Identical electrode had no reliable re-install the electrode or paste some linked with patient body; water or conductive ointment at the contact position ECG machine, electrode, metal bed Check ECG machine, electrode, metal bed... -
Page 21: Partial Buttons Or All Buttons Failure
Shenzhen Comen Medical Instruments co., ltd. it is due to body movement or respiration of the involved patient or mixed an old electrodes with new electrodes for together use 4.5.9 Partial buttons or all buttons failure Symptoms Possible Cause Correction Action... - Page 22 Shenzhen Comen Medical Instruments co., ltd. Problem with the print head. Change new print head Print head unclean Clean the print head Printer defective. Change new printer. Print unclear Main board defective. Change new main board Printer is not covered properly Check if printer is covered properly or or installed with inclined paper.
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Page 23: Chapter 5 Performance Verification
Shenzhen Comen Medical Instruments co., ltd. Chapter 5 Performance Verification 5.1 Safety Test Safety tests should be performed by qualified personnel every 6 to 12 months, and each time after service use a standard safety tester to perform safety tests. The tester must comply with IEC/EN 60601-1or the local standards and statutes. - Page 24 Shenzhen Comen Medical Instruments co., ltd. 50mm/s，error limit±2%. 5.2.2.2 Test method a）Set the sensitivity of electrocardiograph as 10 mm/mv，print speed 25mm/s, AC filter 50Hz， EMG filter off,low-pass filter 150Hz， drift filter 0.05Hz， manual model.Switch on the ST light of the detector，press S+SU,keep the indicator of detector“3”lit，Change the output value 20μ...
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Page 25: Chapter 6 Disassembling 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 26: Separate The Function Board In The Front Panel
Shenzhen Comen Medical Instruments co., ltd. Battery compartment Caution: remove the battery first in order to operate in safe situation Separate the function board in the front panel. 1. Open the paper cover and upper cover. - Page 27 Shenzhen Comen Medical Instruments co., ltd. 2. Unscrew the screw labeling in the figure. 3. Unplug the cables carefully.
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Page 28: Disassemble The Ecg Board
Shenzhen Comen Medical Instruments co., ltd. 3. Then unplug indicate cable, LCD transmit board LCD FFC ribbon cable and next you should unscrew all screws then remove these board. 6.3 Disassemble the ECG board 1.After separating the front and back panel ,finding the back panel including four parts (printer ,power unit ,ECG board ,main board ) 2. -
Page 29: Disassemble The Main Board
Shenzhen Comen Medical Instruments co., ltd. Disassemble the main board 1. Unscrew five PA3x8 screws and then unplug the printer ribbon cable carefully. Last do not forgot to unplug the power cable and monitoring cable) Disassemble the power unit 1. Separate the power main board (unplug the grounding cable and AC power cable .Then... -
Page 30: Printer Disassembling
Shenzhen Comen Medical Instruments co., ltd. Printer disassembling 1. Unscrew all screws in the printer support below. Then remove the printer support. -
Page 31: Chapter 7 Software Upgrade
4. Unzip the package file that got from COMEN and copy the folder * to the root path on USB disk, do not change the folder name or the file name(s) in the folder unless you are informed by COMEN to have the necessary change. - Page 32 Shenzhen Comen Medical Instruments co., ltd. Disconnect the patient monitor from patient before software upgrade; Make sure the battery capacity is enough or plug on AC power while doing the software upgrade process, it takes around 2-10 minutes during the whole upgrade;...
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