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Inspecting the Instrument Before Use
Startup check
In order to perform a test safely, inspect the instrument prior to startup.
Interrupting current (withstand voltage test mode)
1
Prepare a resistor with a resistance less than the resistance value calculated from the
output voltage and the test upper-limit value (interrupting current) set for the withstand
voltage test.*
1
2
Set the test upper-limit value.
3
Connect the High Voltage Test Lead to the prepared resistor.
4
Check that the fail judgment is displayed. If the fail judgment is not displayed, the instrument
may be damaged. Please contact your authorized Hioki distributor or reseller.
Resistance measurement (insulation resistance test mode)
1
Prepare a resistor with a value more than the lower limit for the insulation resistance
test and close to the test lower limit.*
1
2
Setting the test voltage
3
Connect the High Voltage Test Lead to the prepared resistor.
4
Check that the measured resistance value matches the resistance value of the prepared
resistor. If the resistance values do not match, the instrument may be damaged. Please
contact your authorized Hioki distributor or reseller.
*1. A high-voltage resistor with a rated power more than the power calculated from the output
voltage and resistance value is recommended.
Recommended resistor: High-voltage/high-resistance thick film resistor GS series (Koa) or
equivalent
Interlock
Check the interlock function for proper operation before starting a test.
See “Interlock function” (p. 165).
Preparation
HIOKI ST5680A961-00
Содержание ST5680
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