15
Operating Precautions
With some USB ash drives, the instrument may not start up if power is turned on while the USB ash
drive is inserted. In such a case, turn power on rst, and then insert the USB ash drive. It is recom-
mended to try out operation with a USB ash drive before starting to use it for actual measurements.
Before Connecting EXT I/O
WARNING
• The ISO_5V pin of the EXT I/O connector is a 5V power output. Do not apply
external power to this pin.
To avoid electric shock or damage to the equipment, always observe the follow-
ing precautions when connecting to EXT I/O connectors.
• Always turn off the power to the instrument and to any devices to be connected
before making connections.
• Be careful to avoid exceeding the ratings of EXT I/O connectors. (p. 178)
• During operation, a wire becoming dislocated and contacting another conduc-
tive object can be serious hazard. Use screws to secure the external connec-
tors.
• Ensure that devices and systems to be connected to the EXT I/O terminals are
properly isolated.
CAUTION
To avoid damage to the instrument, observe the following cautions:
• Do not apply voltage or current to the EXT I/O terminals that exceeds their ratings.
• Do not short the ISO_5V and ISO_COM EXT I/O connectors.
See “Instrument connector signal assignments” (p. 162).
• When driving relays, be sure to install diodes to absorb counter-electromotive force.
Handling the LCR application disc
• Exercise care to keep the recorded side of discs free of dirt and scratches. When writing text on a
disc’s label, use a pen or marker with a soft tip.
• Keep discs inside a protective case and do not expose to direct sunlight, high temperature, or
high humidity.
• Hioki is not liable for any issues your computer system experiences in the course of using this
disc.
10
9
8
7
6
5
4
3
2
1
付録索引
To Next Page
Loading...
