Hioki BT4560 - Page 15

9
Operating Precautions
CAUTION
• To avoid damage to the instrument, do not apply voltage or current to temperature
sensor terminal.
• To prevent cable damage, do not step on cables or pinch them between other objects.
Do not bend or pull on cables at their base.
• The sensor used in the temperature sensor is a thin, precision platinum lm. Be aware
that excessive voltage pulses or static discharges can destroy the lm.
• Avoid subjecting the temperature sensor tip to physical shock, and avoid sharp bends
in the sensor. These may damage the probe or break a wire.
• When measuring high temperatures, do not let the temperature sensor exceed the
specied temperature range.
• 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.
Releasing the lock
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Use only the specied measurement probe and the temperature sensor. Using a non-specied
one when measuring may result in incorrect measurements due to poor connection or other
reasons.
Before connecting the communication cable
WARNING
• Always turn both devices OFF when connecting and disconnecting an interface
connector. Otherwise, an electric shock accident may occur.
• After connecting, be sure to tighten the screws. When the mounting screws
are not rmly tightened, the input module may not perform to specications, or
may even fail.
• To avoid electric shock or damage to the equipment, always observe the
following precautions when connecting to connectors.
• Be careful to avoid exceeding the ratings of connectors .
• During operation, a wire becoming dislocated and contacting another
conductive object can be serious hazard. Use screws to secure RS-232C.
CAUTION
The USB and RS-232C are not insulated to the ground (earth). Grounding (earthing) for
the instrument and the controller must be wired as the common earth. Different earthing
may cause a voltage potential difference between the GNDs of the instrument and the
controller. Connecting the communication cable under condition that there is a voltage
potential difference may cause a malfunction and/or a failure. When different earthing is
required, connecting instruments and devices must be isolated.
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