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Summary of Contents for Fukuda Denshi LX-7120
- Page 1 Service Manual Before setting up/ maintenance, read this service manual carefully. Keep this manual where it can be always referred to.
- Page 2 • The company and product names used in this manual are trademarks or registered trademarks. • If this manual has pages missing or out of order, contact Fukuda Denshi for replacement. • Only physician or persons instructed by physicians are allowed to use the equipment.
- Page 3 Development & Production Support Dept. Fukuda Denshi Co., Ltd. 2-35-8 Hongo Bunkyo-ku, Tokyo 113-8420 Japan Received by of (Company/Hospital)
- Page 4 Revision History Equipment LX-7120 Service Manual Edition Revised Items Reason of the Revision Date – First Edition 2011.01...
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Page 5: Table Of Contents
(MRI) ············································································v Electrosurgery Safety ···················································v Defibrillation Safety······················································ vi Precautions about the Pacemaker ······························ vi Precautions about the LX-7120 ·································· vii Precautions about Waterproof ···································· vii Precautions about ECG·············································· vii Precautions about Output Signal ······························· viii Precautions about Accessories and Optional Accessories ·······························································... -
Page 6: Safety Precautions
N O T E correct use and operating procedures to prevent incorrect operation and malfunction of the equipment. Graphic Symbols Refer to the following symbols indicated on the LX-7120 for their meanings. Symbols indicated on the main unit Symbol Description Caution: Refer To Accompanying Documents Indicates the need to refer to the operation manual before operation. - Page 7 Symbols indicated on the LCD screen Symbol Description Heart Rate Synchronization Mark This mark flashes synchronizing with the heartbeat. Battery Mark Indicates the remaining battery level.
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Page 8: Precautions For Safe Operation Of Medical Electrical
Cautions described here are regarding the general instructions for safety use to the patient and the operator. As for cautions about the LX-7120, please refer to the following page. 1. Users should have a thorough knowledge of the operation before using this equipment. -
Page 9: Non-Explosion Proof
9. When using electrosurgical knives or defibrillator with this equipment, take care of the following. To prevent burn injury to the patient, verify proper attachment of patient ground • plate, ECG electrode type for the electrosurgical knives, and the quantity of gel, C A U T I O N output energy for the defibrillator. -
Page 10: Defibrillation Safety
Defibrillation Safety Use only the lead cable specified by Fukuda Denshi when defibrillating. If used by unspecified lead cable, the device may be damaged, resulting in a safety hazard. When using the defibrillator, keep away from the electrodes or medicament applied to the patient chest. If this is not possible, remove W A R N I N G the electrodes or medicament before using it. -
Page 11: Precautions About The Lx-7120
Fukuda Denshi service representative. C A U T I O N The lid may be damaged from high impact. If the LX-7120 is dropped or is subjected to a high impact, make sure that the lid is not damaged. Do not use the LX-7120 wet. Always wipe the LX-7120 with a soft cloth and dry it thoroughly before use. -
Page 12: Precautions About Output Signal
Precautions about Output Signal Do not use the output signal of the monitor that receives radio wave signal from the LX-7120 as the trigger signal for IABP, MRI echocardiographic, or defibrillator for the following reasons. W A R N I N G It may lead to a delay of operating timing due to the delay time of waveform transmission. -
Page 13: Precautions For Use Of Medical Telemeter
The LX-7120 transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. The LX-7120 complies with FCC radiation exposure limits set forth for a controlled environment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C to OET65. The LX-7120 has very low levels of RF energy that are deemed to comply without testing of specific absorption ratio (SAR). -
Page 14: Precautions About The Maintenance
W A R N I N G in electric shock. Maintenance, Modifications, and Repairs Fukuda Denshi is liable for the safety, reliability, and performance of its equipment only if; Maintenance, modifications, and repairs are carried out by authorized personnel. Components are used in accordance with Fukuda Denshi operating instructions. -
Page 15: Electromagnetic Compatibility
Electromagnetic Compatibility The performance of this device under electromagnetic environment complies with IEC 60601-1-2 (2007). Precautions for Safe Operation under Electromagnetic Influence If any sorts of electromagnetic wave, magnetic field, or static electricity exist around the device, noise interference or malfunction of the device may occur. If any unintended malfunction or noise occurs during monitoring, check the magnetic influence and take appropriate countermeasures. -
Page 16: Compliance To The Electromagnetic Emissions
●Compliance to the Electromagnetic Emissions The LX-7120 is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7120 should assure that it is used in such an environment. Emissions Test Compliance Electromagnetic Environment - Guidance The LX-7120 uses RF energy only for its internal function. -
Page 17: Compliance To The Electromagnetic Immunity
●Compliance to the Electromagnetic Immunity (2) The LX-7120 is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7120 should assure that it is used in such an environment. IEC60601-1-2 Compliance Immunity Test... - Page 18 ● Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the LX-7120 The LX-7120 is intended for use in an environment in which radiated RF disturbances are controlled. The customer or the user of the LX-7120 can help prevent electromagnetic interference...
- Page 19 Explains procedure of optional settings. 4. Spare Parts List Lists the consumable parts. 5. Assembly Diagram Consists of assembly diagram of the LX-7120. Explains check items and procedures for each trouble 6. Troubleshooting situation. Explains the replacing procedure of the spare parts and 7.
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Page 20: Equipment And The Lx-7120
Troubleshooting·························································6-6 Equipment and the LX-7120·························· xiv Transmitter (main unit) ···········································6-6 ECG········································································6-6 1. General Description In Case of Dropping the LX-7120 into Water············6-7 General Description ·················································· 1-2 7. Maintenance External Appearance ············································· 1-2 Names of Parts and Their Functions······················· 1-3 Servicing ·····································································7-2 Replacing procedure of the Spare Parts ··················7-3... - Page 21 8. Periodic Check Maintenance and Inspection ···································· 8-2 About Maintenance Check ···································· 8-2 ●Daily Check ···················································· 8-2 ●Periodic Check ············································· 8-2 Periodic Replacement Parts ·································· 8-2 Periodic Check ······················································ 8-4 ●Introduction··················································· 8-4 ●Service tools/Measurement Device ·············· 8-4 ●Periodic Check Item ····································· 8-5 ●Periodic Check Procedure····························...
- Page 22 Blank Page xviii...
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Page 23: General Description
Chapter 1 General Description General Description ····················································· 1-2 External Appearance ················································ 1-2 Names of Parts and Their Functions·························· 1-3 －... -
Page 24: External Appearance
(In case of ▽) using a 3-electrode lead cable or a 5-electrode chest lead cable) Before using the LX-7120, read also the operation manual of the patient monitor at the receiving side thoroughly. External Appearance －... -
Page 25: Names Of Parts And Their Functions
Names of Parts and Their Functions Channel Number Label Neck Strap Hole Indicates transmitter Attaches the neck strap. channel number. ECG/RESP Input Connector Connects the ECG lead cable Displays measurement to measure ECG and waveform and transmitter respiration waveform. information. Enter button Uses for setup. - Page 26 Blank Page －...
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Page 27: Specification & Accessories
Chapter 2 Specification & Accessories Specification································································· 2-2 Standard Specification·············································· 2-2 ECG·········································································· 2-2 Respiration (Impedance Method) ····························· 2-2 Transmission Method ··············································· 2-3 Safety ······································································· 2-3 Operating Environment············································· 2-3 Transport / Storage Environment······························ 2-3 List of Setup Items ······················································· 2-4 Standard and Optional Accessories··························· 2-5 Standard Accessories···············································... -
Page 28: Specification
Continuous Operating Time: Approximately 7 days (EU version) Approximately 6 days (USA version) ※Continuous operating time is assumed when using new “AA” size (“LR06” size) Alkaline battery specified by Fukuda Denshi. Numbers of Lead Electrode: 3-electrode, 4-electrode, or 5-electrode (Limb+Chest) Numbers of Input Channel: 1CH(3-electrode) or 2CH Accuracy of Sensitivity: 10mm /1mV ±20%... -
Page 29: Transmission Method
Transmission Method Modulation Mode: Digital, Frequency shift keying Frequency: 433 to 435MHz (for EU version) 608 to 614MHz (for U.S.A. version) Oscillation Method: PLL Synthesizer method by crystal control Channel Spacing: 12.5kHz Occupied Frequency Bandwidth: 8.5kHz RF output power: 1mW ±2dB Transmitting Antenna: ECG lead cable Safety... -
Page 30: List Of Setup Items
List of Setup Items This section lists the available selection, default setting, and backup status for each setup item, which is available for the LX-7120. Items Selection Default Backup ECG Lead I, II, III Display Size of ECG (1) ×1, ×1/2 ×1... -
Page 31: Standard And Optional Accessories
Use only the accessories, such as ECG Lead cable, specified by Fukuda W A R N I N G Denshi for the LX-7120. Otherwise, the LX-7120 cannot deliver its maximum performance and may be damaged, resulting in a safety hazard. -
Page 32: Optional Accessories
Optional Accessories The following accessories are available as optional for the LX-7120. Purchase them as required. ●ECG, Impedance Respiration Measurement IEC color code: Item Model Type Note 3-electrode (Red, Yellow, Green), ECG Hook Type Lead Cable CMT-01HTH-0.8DU Limb Lead (1CH) -
Page 33: Optional Settings
Chapter 3 Optional Settings Change Procedure for Optional Settings·················3-2 Entering to the Preset Screen ································3-3 Changing the Time Constant··································3-4 Changing the Detection Sensitivity of the Pacemaker Pulse ······································································3-5 Changing the QRS detection mode ························3-7 Changing the Respiration Detection Signal ON/OFF ···············································································3-8 Changing the LCD Contrast ·································3-10 Changing the Transmitter Channel·······················3-11... -
Page 34: Change Procedure For Optional Settings
Change Procedure for Optional Settings The following settings are available for the LX-7120 depending on the use and condition of the patient. These setting changes can be performed on the Preset screen. Items Selection Default Backup Time Constant 0.4 sec., 0.1 sec. -
Page 35: Entering To The Preset Screen
Entering to the Preset Screen 1. Turn on the equipment while holding down the both “▼”and “Enter” keys. The password entering screen will appear after a few seconds. Press and hold down the keys until the password entering screen appears. If the password entering screen does not appear, turn off the equipment once. -
Page 36: Changing The Time Constant
“0.4 seconds” setting in normal use. The LCD screen in normal use does not indicate the selection of time constant. Make sure to take measures, such as marking on the LX-7120, to distinguish whether the selection of time constant is changed. -
Page 37: Changing The Detection Sensitivity Of The Pacemaker
AC frequency. Nonetheless, if erroneous detections still occur, change the setting to “Low” in order to decrease the detection sensitivity. It makes the LX-7120 less likely to be interfered by the noise, such as AC frequency. - Page 38 1. Press the “▼” key to highlight the “Pace Detect.” message on the ECG setup screen. While the “Pace Detect.” message is highlighted, the “Pacemaker Pulse Detection Sensitivity” setting change is available by pressing the “Enter” key. The detection sensitivity set up is highlighted. Check the ECG waveform on the receiving monitor screen.
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Page 39: Changing The Qrs Detection Mode
Changing the QRS detection mode The default setting of the QRS detection mode is “Wide”. C A U T I O N Use only the default setting “Wide” for the QRS detection mode. 1. Keep pressing the “▼” key until the “ ”... -
Page 40: Changing The Respiration Detection Signal On/Off
The LCD screen in normal use does not indicate the setting status of the respiration detection signal ON/OFF. Make sure to take measures, such as marking on the LX-7120, to distinguish whether the setting of the respiration detection signal ON/OFF is changed. - Page 41 3. Press the “▼” key to change the “ ” to “ ” icon and then press the “Enter” key on the RESP setup screen to return to the Preset screen. The equipment can be turned off on this Preset screen, because the changed setting has already been stored.
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Page 42: Changing The Lcd Contrast
Changing the LCD Contrast The LCD contrast change is available in 8 steps. 1. Keep pressing the “▼” key on the Preset screen until the “ ” changes to “ ” icon. Make sure the “ ” icon is changed to “ ”... -
Page 43: Changing The Transmitter Channel
Changing the Transmitter Channel The LX-7120 is a transmitter of PLL synthesizer type, and its transmitter channel can be programmed. It can be set up with an arbitrary channel among the channels assigned by the Telemetry Laws (according to each country). - Page 44 5. Keep pressing the “▼” key to highlight the “Save” message. Make sure the “Save” message is highlighted and then press the “Enter” key to store the changed channel number. While the data is saved, the “Writing” message will blink. Do not turn off the equipment during this process.
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Page 45: Changing The Transmitter Group
Changing the Transmitter Group ID The LX-7120 transmits its group ID, which it belongs to, to prevent interference with neighboring hospital's transmitter. The receiving monitor checks whether the incoming group ID is the same as the programmed one that the receiving monitor has. There are 64 group codes available. The default setting is “00”. - Page 46 4. Press the “▼” key to highlight the “Save” message. Make sure the “Save” message is highlighted and then press the “Enter” key to store the changed channel number. While the data is saved, the “Writing” message will blink. Do not turn off the equipment during this process.
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Page 47: Spare Parts List
Chapter 4 Spare Parts List This spare part list describes the electrical parts and internal cables. Spare Parts List··························································4-2 Field Service Parts ·····················································4-3 Main Unit Component ················································4-4 Internal Cables ···························································4-5 Screws ········································································4-6 －... - Page 48 Spare Parts List Model Item Code Item Name Note Name ○ 6C0120220 Battery Compartment Lid ○ 6C0120230 Screw 1 for Hinge Part ○ 6C0120240 Rubber Cap Main Unit Case with Battery 6C0124230 EU version Contacts (CE) ○ Main Unit Case with Battery 6C0124220 USA version Contacts (FA)
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Page 49: Field Service Parts
Field Service Parts Item Name External Appearance Battery ○ Compartment Lid Screw 1 for Hinge ○ Part ○ Rubber Cap 4 - 3... -
Page 50: Main Unit Component
Main Unit Component Item Name External Appearance Main Unit Case with Battery Contacts (CE) (5-electrode, IEC color code) ○ Main Unit Case with Battery Contacts (FA) (4-electrode, AHA color code) ○ Rear Panel Analog Board / LCD Board ( LCD and Analog Boards are combined. -
Page 51: Internal Cables
Internal Cables Item Name External Appearance ○ RF Coax Cable 4 - 5... -
Page 52: Screws
Screws Item Name External Appearance Tamper-proof Screw ○ for Battery Contacts (M2 × 6) Tamper-proof Screw for Battery BOX ○ (M2 × 6, with seal washer) Tamper-proof Screw ○ 1 for Rear Panel (M2 × 12) Tamper-proof Screw ○ 2 for Rear Panel (M2 ×... -
Page 53: Assembly Diagram
Chapter 5 Assembly Diagram LX-7120 Assembly Drawing ······································5-2 －... -
Page 54: Lx-7120 Assembly Drawing
LX-7120 Assembly Drawing ⑦ ⑧ ⑥ ⑥ ⑥ 1. Embed the “LCD Protective Case” (Part No.8) to the “LCD” (Part No.7). 2. Connect the “LCD” (Part No.7) embedded in the Step 1 to the LCD connector mounted on the “LCD Board” (Part No.6-1). - Page 55 ④ ⑤ ⑫ ② ⑪ ⑬ ⑩ ③ ① 3. Install the LCD Board Block assembled in the Step 2 to the “Main Unit Case with Battery Contacts” (Part No.4). Make sure to have the “Pins” on the “Main Unit Case” go through the holes in the LCD Protective Case (Part No.8).
- Page 56 Unit Case with Battery Contacts” (Part No.4) and then secure the flexible part with the two (2) “Tamper-proof Screw for Battery Contacts” (Part No.10) and two (2) “Tamper-proof Screw for Battery BOX” (Part No.11) from inside Battery BOX. Insert the flexible cable from the “Main Unit Case with Battery Contacts” (Part No.4) to the flexible connector on the Analog Board (Part No.6-2) of the Analog Board / LCD Board (Part No.6) firmly.
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Page 57: Troubleshooting
Chapter 6 Troubleshooting List of Displayed Status ············································6-2 Transmitter (main unit) ···········································6-2 ECG········································································6-2 List of Displayed messages ······································6-3 Details of the “ELECTRODE?” Message··················6-4 Troubleshooting·························································6-6 Transmitter (main unit) ···········································6-6 ECG········································································6-6 In Case of Dropping the LX-7120 into Water············6-7 －... -
Page 58: List Of Displayed Status
List of Displayed Status Transmitter (main unit) Message Cause Solution Failed to transmit Replace the Main Unit Board with a new one. waveform and value. Faulty EEPROM. Replace the Main Unit Board with a new one. Failed to initialize CPU. Replace the Main Unit Board with a new one. -
Page 59: List Of Displayed Messages
List of Displayed messages The following messages are displayed on the LCD of the transmitter. Display Description Displays after turning on the power. Automatically moves onto the channel Starting Screen display screen. Displays the transmitter channel after turning on the power and also when refreshing the Channel Display Screen screen. -
Page 60: Details Of The "Electrode?" Message
Details of the “ELECTRODE?” Message The following “ELECTRODE?” messages are displayed on the LCD depending on the selected lead cable and lead. For IEC color code Check 3-electrode lead cable 3-electrode lead cable 3-electrode lead cable Position Lead I display Lead II display Lead III display Several... - Page 61 For AHA color code Check 3-electrode lead cable 3-electrode lead cable 3-electrode lead cable Position Lead I display Lead II display Lead III display Several Position Simultaneously Check 4-electrode lead cable For 5-electrode (Chest) Position lead cable Several Position Simultaneously －...
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Page 62: Troubleshooting
Follow the instruction by the person in charge of radio telemetry channel in your facility and use the LX-7120 with the correct channel setting. Channel interference Follow the instruction by the person in charge of radio telemetry channel in your facility and use the LX-7120 with the correct channel setting. -
Page 63: In Case Of Dropping The Lx-7120 Into Water
In Case of Dropping the LX-7120 into Water In case of dropping the LX-7120 into water containing disinfectant, pick up the LX-7120 quickly from it. Rinse it well with running water, and dry it thoroughly with a soft cloth. Do not use a drier. The LX-7120 shape may change or be broken. - Page 64 Blank Page －...
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Page 65: Maintenance
Replacing the Main Unit Case with Battery Contacts ···············································································7-6 Replacing the Analog Board and LCD Board ·······7-12 Replacing the LCD and LCD Protective Case ······7-14 Cleaning and Disinfection ·······································7-15 Cleaning and Disinfecting the LX-7120 ················7-15 Cleaning the ECG lead cable ·······························7-16 －... -
Page 66: Servicing
Servicing This device is basically a factory servicing. When you have the trouble, contact Fukuda Denshi service department. For the following two (2) items that are described in this manual, they can be repaired outside the factory. ・Replacement of the Battery Compartment Lid ・Replacement of the Rubber Cap... -
Page 67: Replacing Procedure Of The Spare Parts
The periodic replacement parts must be replaced at specified period. Even if the LX-7120 is used under one (1) year, the lid may be damaged C A U T I O N from high impact. -
Page 68: Replacing The Rubber Cap
Replacing the Rubber Cap ●Tool ・Tweezers ●Assembly and disassembly ・Replace the parts in the next step. 1. Insert the tweezers between the gap of the Rubber Cap (Parts No.3) and hole of the Main Unit Case, and then pull out the Rubber Cap. -
Page 69: Replacing The Rear Panel
Replacing the Rear Panel ●Tool ・Screwdriver for tamper-proof screw and Tweezers. ●Assembly and disassembly ・Replace the parts in the next step. 1. Remove the Rubber Caps (Part No.3) according to the “Replacing the Rubber Cap” procedure. 2. Remove the five (5) Tamper-proof Screws (Four (4) Tamper-proof Screws 1 for Rear Panel (Part No.12) and one (1) Tamper-proof Screw 2 (Part No.13)) using a tamper-proof... -
Page 70: Replacing The Main Unit Case With Battery Contacts
Replacing the Main Unit Case with Battery Contacts ●Tool ・Screw driver for tamper-proof screw , Tweezers, etc. ●Assembly and disassembly ・Replace the parts in the next step with care about wiring and laying. 1. Remove the Rubber Caps according to the “Replacing the Rubber Cap” procedure. 2. - Page 71 5. Remove the RF Coax Cable (Part No.9). ・Using the tweezers, pull out the RF coax cable toward vertically. 6. Separate the LCD Board (Part No.6-1) and Analog Board (Part No.6-2) and then remove the Analog Board. The Analog Board is visible on this side. ・Remove the engagement of connector that connects the LCD Board...
- Page 72 ・To separate the battery contacts and connection part of the Analog Board, pull out the Analog Board vertically. Connection part of battery contact 7. Remove the LCD Board (Part No.6-1). When the Analog Board is detached, the LCD Board will appear. ・Remove the LCD Board (Part No.6-1) by lifting the bottom part (The battery compartment side).
- Page 73 ・Do not pull it out forcibly when LCD Protective Case (Part No.8) can not be pulled out. In that case, remove LCD Protective Case (Part No.8) from the Main Unit Case using the tweezers. After that, remove the LCD Board (Part No.6-1) 8.
- Page 74 10. Install the Analog Board (Part No.6-2). ・Insert the flexible part, which connects to the battery connects, from the Analog Board (Part No.6-2) along the groove ( at the battery compartment side on the Main Unit Case (Part No.4). ・At this time, make sure the positions of screw holes, which connects to the battery contacts, on the flexible part of the Analog Board (Part No.6-2) is suitable for the screw...
- Page 75 13. Secure the four (4) Tamper-proof Screws (Two (2) Tamper-proof Screws for Battery BOX (Part No.11) and two (2) Tamper-proof Screws for Battery Contacts (Part No.10)) using the tamper-proof screwdriver according to the opposite procedure in the Step 3. 14. Assemble the Rear Panel (Part No.5) and Rubber Caps (Part No.3) according to the “Replacing the Rear Panel”...
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Page 76: Replacing The Analog Board And Lcd Board
Replacing the Analog Board and LCD Board The LCD Board and Analog Board are adjusted in pairs. The combination of non-pairs boards can not guarantee the performance out of adjustment. C A U T I O N To replace the LCD Board or Analog board, always, replace a pair of LCD Board and Analog Board. - Page 77 4. Replace the LCD board (Part No.6-1) with a new one. And then connect the LCD (Part No.7) removed in Step 2 to the new one. ・Insert the FPC cable of LCD (Part No.7) to the connector with unlocked condition straightforward and then lock the connector.
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Page 78: Replacing The Lcd And Lcd Protective Case
Replacing the LCD and LCD Protective Case ●Tool ・Screwdriver for tamper-proof screws, Phillips screwdriver, Fatheadscrew driver, Hexagon wrench, and Tweezers ●Assembly and disassembly ・Replace the parts in the next step with care about wiring and laying. 1. Remove the LCD Board (Part No.6-1) and Analog Board (Part No.6-2) according to the “Replacing the Analog Board and LCD Board”... -
Page 79: Cleaning And Disinfection
●Disinfection If there is a possibility of being infected, clean the LX-7120 using a squeezed gauze or an absorbent cotton cloth dampened with alcohol or invert soap. Do not immerse the connector parts of the LX-7120 in any chemical solution to prevent connection failure. -
Page 80: Cleaning The Ecg Lead Cable
Cleaning the ECG lead cable After using the cable, clean it with neutral detergent or 70% isopropyl alcohol. Do not use thinner, toluene, or other organic solvents to clean the cables. Do not pull the cable and do not hold the connector part when cleaning. (It may degrade the cable coating and result in damage. -
Page 81: Periodic Check
Chapter 8 Periodic Check Maintenance and Inspection ·····································8-2 About Maintenance Check ·····································8-2 ●Daily Check ·····················································8-2 ●Periodic Check ··············································8-2 Periodic Replacement Parts ···································8-2 Periodic Check ·······················································8-4 ●Introduction ···················································8-4 ●Service tools/Measurement Device ···············8-4 ●Periodic Check Item ······································8-5 ●Periodic Check Procedure·····························8-5 ●Periodic Check List········································8-8 －... -
Page 82: Maintenance And Inspection
To ensure the reliability of waterproof (IPX8) performance of the LX-7120, replace it once a year. You may be able to keep using the LX-7120 without periodic replacement of the lid. However, as it gets older, the reliability of water resistance (IPX8) performance will not be ensured. - Page 83 □OK/ □NG compartment lid. be found. Battery Compartment Visually check for the contact springs, inside the LX-7120, to the No deformation, cracks, and □OK/ □NG battery and the lock lever of the rust should be found. battery compartment lid.
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Page 84: Periodic Check
Periodic Check ●Introduction The periodic maintenance check is intended to check the medical equipment used daily in a medical institution to prevent failures and accidents and to ensure safety and reliability. As these are general check procedures covering the whole monitoring equipment, perform the check procedure for the corresponded function of the equipment. -
Page 85: Periodic Check Item
●Periodic Check Item The periodic check items are as follows. Check Item External Appearance Power Supply Switch Display / Operation / Record Respiration Electrical Safety ●Periodic Check Procedure Check Item Check Procedure Criteria 1. External Appearance, Accessories Appearance Visually check the exterior for No abnormality should be scratches, cracks, deformation, and found. - Page 86 Check Item Check Procedure Criteria 4. ECG Input Impedance* Measure input impedance with safety Should be 5MΩ or above. tester. Suppression With SG-2000, input 50Hz or 60Hz Should be 10mm or below Characteristic of 20Vr.m.s. signal, and measure for standard sensitivity Common-Mode fluctuation of each lead.
- Page 87 Check Item Check Procedure Criteria 5. Respiration Respiration With comprehensive tester or reference The amplitude displayed Waveform respiration signal generator, input on the receiving monitor Sensitivity sinusoidal waveform of 0.5Hz with base screen should be within resistance of 1.5kΩ/1Ω change. 10mm±2mm.
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Page 88: Periodic Check List
●Periodic Check List Telemetry Transmitter Periodic Check Report Check Date Periodic Check Contract Delivery Date Location □Yes □No Customer Code Month Check Model Serial No.: Product Code Next Check Date Name Requested Acceptance Date Item Check Item Judge Check Check Item Judge Check Check Item... - Page 89 39-4, Hongo 3-chome, Bunkyo-ku, Tokyo, Japan Phone:+81-3-3815-2121 Fax:+81-3-3814-1222 Printed in Japan 4R0100550 2011101...
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