3.1 Pre-Operation Inspection
21
3
Chapter 3 Measurement
Before starting measurement, please read "Usage Notes" ( p.4) and "Chapter 2
Measurement Preparations" ( p.15).
Before using the instrument, perform the following inspection to ensure that it is
operating properly.
Measurement Chapter 3
• To avoid electrical shock, be careful to avoid shorting live lines with the test
leads.
• To avoid injury or damage to the instrument, do not attempt to measure AC
voltage and AC current, or DC voltage exceeding
±1000 V DC.
• The maximum rated voltage between input terminals and ground is
±1000 V
DC. Attempting to measure voltages exceeding
±1000 V DC with respect to
ground could damage the instrument and result in personal injury.
To prevent electrical shock, verify the ratings of the measurement leads before
measurement and exercise care not to measure voltages that exceed those
ratings.
3.1 Pre-Operation Inspection
Check Point Check Contents
Instrument Chassis
(both front and rear panels)
• No damage or cracks
• No internal circuitry is exposed
Test Leads and Power
Cord
• Metal parts that should be insulated are not
exposed
Good Test Sample • Measures as good and displays the correct
measurement value
Bad Test Sample • Measures as bad and displays the correct
measurement value
Before using the instrument for the first time, verify that it operates normally to
ensure that no damage occurred during storage or shipping. If you find any
damage, contact your authorized Hioki distributor or reseller.
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