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Connection to the Test Target
2.6 Connection to the Test Target
DANGER
When the
DANGER
lamp is lit, never touch the voltage output terminals,
High Voltage Test Lead, and test target.
Doing so could result in serious bodily injury.
Before connecting the High Voltage Test Lead to the instrument, make
sure that a high voltage is not applied to the voltage output terminals.
Failure to do so could result in serious bodily injury.
When touching the voltage output terminals, High Voltage Test Lead, or
test target, make sure that a high voltage is not applied to the voltage
output terminals.
• The
DANGER
lamp is off.
•
[TEST]
is not lit in the display area.
There may be residual voltage in the voltage output terminal even after the test is
completed, the residual voltage could cause electric shock.
1
Check that the
DANGER
lamp is not lit.
2
Check that
[TEST]
is not lit in the display area. (p. 61)
3
Connect the voltage output LOW side test lead to the test target.
Securely connect the test lead so that it does not come off during the test.
4
Connect the voltage output HIGH side test lead to the test target.
IMPORTANT
•
Do not perform measurements in high temperature and high humidity environments. Also, do
not route the High Voltage Test Lead long or do not subject it to vibration or other disturbances.
Doing so may cause errors in measured values of the insulation resistance test, resulting in
deviation from the accuracy specifications.
• If a short circuit occurs between the HIGH and LOW voltage output terminals of the instrument
or a dielectric breakdown occurs in the test target during a test, noise is generated. The noise
may cause the instrument and surrounding electronic equipment to malfunction. In such a
case, connect a ferrite core to the high-voltage side test lead or connect a resistor in series.
Consider the rated power and withstand voltage when selecting a resistor and check for a
voltage drop in the test voltage, etc. When connecting a resistor, turn off the instrument to
prevent electric shock.
• Do not connect the extenal I/O cable and communication cable near the test lead. Connecting
these cables near the test lead could cause communication to malfunction due to noise. When
the test lead comes in contact with the peripherals or the metal portion of a jig, leakage current
may increase and a larger measurement error may occur.
• Make sure that the test lead and insulators are clean. Errors may occur during an insulation
resistance test.
HIOKI ST5680A961-00
Содержание ST5680
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