Chapter 2
2 - 28
Checking the earth leakage current
(current that flows to protective earth resistance)
Measurement wiring diagram
Conversion plug
Used for single fault condition
FX-7302
MD
Leakage current measuring device
Power supply cord
Conversion plug
Measurement point A
Measurement
point B
Power outlet
Earth leakage current measurement points
Measurement point A
Earth wire of power supply cord from unit
Measurement point B
Earth terminal of power outlet
Earth leakage current measurement conditions
It is necessary to measure the earth leakage current under two conditions:
normal condition and single fault condition.
How to change the phase
You can switch the phase by inserting the conversion plug into the power
outlet upside down.
How to reproduce a single fault condition
To reproduce a single fault condition, insert one of the two inserts of the
conversion plug by cutting the other insert.
Acceptance standards
Normal condition
0.5 mA or less
Single fault condition
1.0 mA or less
Содержание FX-7302
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Страница 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Страница 111: ...4 43 MARK SENSOR BOARD PCB 6942 MARK SENSOR block Recoding paper 1 2 3 J1 DF4 3P 2C 5 3 4 2 1 PH1 ON2253R ...
Страница 112: ...4 44 MAGAZINE UP SENSOR BOARD PCB 6943A MAGAZINE UP SENSOR BOARD block 1 2 J1 DF4 2P 2C 1 2 3 S1 JPS1220 0401 ...
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Страница 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Страница 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Страница 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Страница 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Страница 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Страница 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Страница 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Страница 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Страница 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
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Страница 162: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2149A 200506 F ...