
6
Fuse
•
Replace the fuse only with one of the specified characteristics and
voltage and current ratings. Using a non-specified fuse or shorting
the fuse holder may cause a life-threatening hazard.
Measurement terminal section : 250 V F50 mAL
•
To avoid electric shock, turn off the power switch and disconnect
the power cord and test leads before replacing the fuse.
• Since a blown fuse cannot be repaired or replaced by the cus-
tomer, contact your dealer or nearest Hioki sales office.
Use the VA check function for power supply fuse and blown fuse
check function for measurement circuit fuse to check for blown
fuses.
Connection
• Always turn both devices OFF when connecting and disconnecting an inter-
face connector and test lead. Otherwise, an electric shock accident may
occur.
• To avoid damaging the power cord, grasp the plug, not the cord, when
unplugging it from the power outlet.
• To avoid breaking the test lead or enclosure probe, do not bend or pull them.
• When the power is turned off, do not apply voltage or current to the measure-
ment terminals. Doing so may damage the instrument.
• L (Line), N (Neutral) and G (Ground) are indicated on the terminal block of the
instrument, and the contacts of the power cord of the device to be measured
are denoted L, N and E (Earth). If the power cord does not include an earth
(E) line, connect only the L and N terminals.
For details regarding the terminal block, refer to "3.3 Connecting equipment
under test to the instrument" (p. 36).
Measurement
To avoid the risk of electric shock when test leads are connected to
the T1 - T3 terminals, do not touch the part of the test lead that is
beyond the finger barrier.
The terminals output high voltages in some measurement modes.
Do not touch any part of
the test lead beyond the
finger barrier
Summary of Contents for ST5540
Page 2: ......
Page 6: ...Contents iv Index i ...
Page 29: ...23 2 Chapter 2 Instrument Labels and Screens Instrument Labels and Screens Chapter 2 ...
Page 80: ...4 8 Changing the Measurement Method Auto Manual 74 ...
Page 121: ...115 8 9 7 Chapter 7 Instrument System Settings Instrument System Settings Chapter 7 ...
Page 144: ...7 14 Setting the Backlight 138 ...
Page 284: ...10 14 Measurement Networks 278 ...
Page 290: ...11 4 Instrument Disposal 284 ...
Page 320: ...Appendix4 External Dimensions A30 ...
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