Kikusui BIM1000 Series, Руководство пользователя

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BIM1000 Series
User’s Manual
87
Appendix
Creating Test Leads
Conditions for measuring accurately
To measure accurately, the following conditions must be met.
• The stray capacitance of the test leads is no more than 1 nF.
• The resistance of the test leads is no more than 3 Ω (no more than 2 Ω when the measurement range
is 3 mΩ or 30 mΩ).
Creating test leads
To minimize errors between leads, make the leads as short as possible, and make twisted pairs with the
positive and negative SENSE wires and with the positive and negative SOURCE wires. The shorter the
untwisted section, the more stable the measurement.
Connect the ends of SENSE + and to a single clip and the ends of SENSE − and SOURCE −
to another clip.
WARNING Risk of electric shock.
• Use test leads with a voltage rating that meets or exceeds the product’s isolation
voltage. For details on the product’s isolation voltage, see “Specifications”
(p. 85) .
• Use wires with the following withstanding voltages for the test leads.
BIM1030: 1700 V or more
BIM1100: 2600 V or more
SENSE +
SENSE
­
SOURCE ­
Example of test lead construction