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Checking Faulty Contact and Contact Status (Contact check function)
2-terminal contact check function
If the insulation resistance of the equipment to be measured is within the
measurement range of the instrument, a 2-terminal contact check can be performed
by setting the upper and lower limit values of the comparator.
(Example) When the insulation resistance of the equipment to be measured is 100 M
Ω
Test voltage
500 V
Upper limit value
110 M
Ω
Lower limit value
90 M
Ω
Test duration
1 s
1
Set the test voltage to 500 V.
2
Set the lower limit value to 90 M
Ω
and the upper limit value to 110 M
Ω
.
3
Set the test duration to 1 s.
4
Connect the HIGH and LOW side test leads to the equipment to be
measured.
5
Start a test.
6
When the measured value is Over.F and the U.FAIL lamp turns on, the
contact may be faulty or the probe wires may be broken.
10
9
8
7
6
5
4
3
2
1
Appx.
Ind.
Содержание ST5520
Страница 2: ......
Страница 8: ...vi Contents ...
Страница 22: ...14 Usage Notes ...
Страница 56: ...48 Announcing the Judgment Results Using a Beep Sound ...
Страница 82: ...74 Initializing the System Reset ...
Страница 88: ...80 Deleting the Panel Data ...
Страница 158: ...150 Command Reference ...
Страница 193: ...Appx 13 Rack Mounting Screw location dimensional drawing 10 9 8 7 6 5 4 3 2 1 Appx Ind ...
Страница 194: ...Appx 14 Dimensional Diagram Appx 8 Dimensional Diagram 166 2 215 1 14 1 80 1 ...
Страница 197: ...13 09 ...
Страница 198: ......
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