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Chapter 2
2 - 22
Periodical inspections
To maintain the unit's functions and performance, periodical inspections are
required.
The inspections explained in this section should be performed by service
representatives who have sufficient technical knowledge.
●
Periodical inspection intervals and precautions
Inspection item
Description
Periodical inspection interval
Periodical inspection should be performed at least
once a year.
Precautions before inspection
Simplified circuits that are used to measure protective
earth resistance are illustrated; however, fire, electric
shock, and other hazards accompany the manufacture
and use of such circuits. Handle with care.
Precautions after inspection
After the inspection is completed, clean each part.
Measuring device used for
inspection
Electronic voltmeter or digital voltmeter
●
List of periodical inspection items
Inspection item
Description
Safety inspection
Earth leakage current inspection
Enclosure leakage current inspection
Patient leakage current I inspection
Patient leakage current III inspection
Patient measurement current inspection
Protective earth resistance inspection
Inspection of
electrical performance/
characteristics
Sensitivity
Time constant (AMP)
Frequency characteristic
Control of in-phase signal
Counter electrode voltage
Internal noise
Recording sensitivity
Hardware inspection
Patient cable/connecting cable inspection
Limb electrode/chest electrode inspection
Recording paper/Keratin cream inspection
Operation Manual inspection
Trolley/cord hanger inspection (if any)
Enclosure inspection
Rating label inspection
Switch inspection
Power supply fuse inspection
Recorder inspection
Electrode inspection
Содержание CARDIMAX FX-7202
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Страница 106: ...Chapter 4 4 42 MARK SENSER BOARD 3 4 2 1 CN2253 PH1 MARK COM MARK E MARK A 1 2 3 DF4 3P 2C J1 5V Recording paper ...
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Страница 125: ...6 1 MAIN BOARD PCB 6868B component side ...
Страница 126: ...6 2 MAIN BOARD PCB 6868B soldering side ...
Страница 127: ...6 3 ECG AMP BOARD PCB 6867A component side ...
Страница 128: ...6 4 ECG AMP BOARD PCB 6867A soldering side ...
Страница 129: ...6 5 OPERATION BOARD PCB 6866C component side ...
Страница 130: ...6 6 OPERATION BOARD PCB 6866C soldering side ...
Страница 131: ...6 7 POWER1 BOARD PCB 6863B component side ...
Страница 132: ...6 8 POWER1 BOARD PCB 6863B soldering side ...
Страница 133: ...6 9 POWER2 BOARD PCB 6864B component side ...
Страница 134: ...6 10 POWER2 BOARD PCB 6864B soldering side ...
Страница 135: ...6 11 MARK SENSER BOARD PCB 6865 component side ...
Страница 136: ...6 12 MAGAZIN SW BOARD PCB 6862 component side ...
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Страница 147: ...7 9 Main Board 1 2 3 No Part No Drawing No Name and type Q ty Remarks 1 MAIN PWB 1 2 Finger 1 3 Finger 2 ...
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Страница 160: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2121 200301 F ...