Hioki IM3533, Инструкция по эксплуатации

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Operating Precautions
7
About Handling of Cords, Fixtures and Temperature probes
•
For safety reasons, disconnect the power cord when the instrument is not used.To avoid
damaging the power cord, grasp the plug, not the cord, when unplugging it from the
power outlet.
•
Do not apply a voltage to the measurement terminals. Doing so may damage the instru-
ment.
•
When disconnecting the BNC connector, be sure to release the lock before pulling off the
connector. Forcibly pulling the connector without releasing the lock, or pulling on the
cable, can damage the connector.
•
To avoid breaking the cables or probes, do not bend or pull them.
•
Avoid stepping on or pinching cables, which could damage the cable insulation.
•
Keep the cables well away from heat sources, as bare conductors could be exposed if the
insulation melts.Keep in mind that, in some cases, conductors to be measured may be hot.
•
The sensor used in the temperature probe is a thin, precision platinum film. Be aware
that excessive voltage pulses or static discharges can destroy the film.
•
Avoid subjecting the temperature probe tip to physical shock, and avoid sharp bends in
the leads. These may damage the probe or break a wire.
•
When measuring high temperatures, do not let the handle of the temperature probe or
the compensation lead wire exceed the temperature range.
•
The temperature probe has a protective nylon cap fitted on the end of the probes.
Remove the cap before using the probe.
•
Put the protective cap back on the connector when not in use. If the protective cap is not
properly inserted, dust or other foreign matter may enter the connector and cause damage.
•
The sheath of the temperature probe is filled with magnesium oxide powder. If the probe
is broken, the magnesium oxide powder may spill out. Be careful not to subject the
sheath to excess stress. Inhaling large quantities of magnesium oxide may be hazardous
to your health.
•
Use only the specified connection cables. Using a non-specified cable may result in
incorrect measurements due to poor connection or other reasons.
•
Before using a fixture or the like, read the instruction manual supplied with the product to
be used.
Before Connecting EXT I/O
To avoid electric shock or damage to the equipment, always observe the following
precautions when connecting to the EXT I/O connector.
• 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 external terminals (p. 326).
• During operation, a wire becoming dislocated and contacting another conductive
object can be serious hazard. Use screws to secure the external connectors.
• Properly insulate any devices and mechanisms to be connected to the EXT I/O con-
nector.
• The ISO_5V pin of the EXT I/O connector is a 5V power output. Do not apply exter-
nal power to this pin.