MR8740T_Quick guide_eng_20191016H.pdf - 第25页
19 Operation Precautions Before connecting the instrument to external equipment DANGER T o avoid electrical hazards and damage to the instrument, do not apply voltage exceeding the rated maximum to the external control t…
18
Operation Precautions
Before turning on the instrument
WARNING
• To prevent electrical shock and to maintain the safety specications of this
instrument, connect the accompanying power cord only to an inlet.
• Before turning the instrument on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply voltage
may damage the instrument and present an electrical hazard.
CAUTION
Do not operate the instrument on any of the power sources (UPS or uninterruptible
power supply, DC/AC inverter) that provide rectangular-wave or pseudo-sine-wave
power. Doing so may damage the instrument.
19
Operation Precautions
Before connecting the instrument to external equipment
DANGER
To avoid electrical hazards and damage to the instrument, do not apply voltage
exceeding the rated maximum to the external control terminals.
Model MR8740T
I/O terminal Maximum input voltage
IN1 10 V DC
IN2 10 V DC
OUT1 50 V DC, 50 mA, 200 mW
OUT2 50 V DC, 50 mA, 200 mW
TRIG.OUT 50 V DC, 50 mA, 200 mW
I/O terminals Maximum input voltage
EXT.TRIG 10 V DC
EXT.SMPL 10 V DC
WARNING
To avoid an electric shock or damage to the equipment, always observe the
following precautions when connecting your external equipment to external
control terminals.
• Always turn off the instrument and any equipment to be connected before
making connections.
• Be careful to avoid exceeding the ratings of the external control terminals.
• Properly isolate the devices and systems to be connected to the external
control terminals from one another.
Always turn both devices off before connecting and disconnecting an interface
connector. This may cause an electric shock.
CAUTION
• Use a common ground to both the instrument and the connected equipment. Using
different ground circuits will result in a ground potential difference between the
instrument and the connected equipment. If the communications cable is connected
while such a potential difference exists, it may result in equipment malfunction or
failure.
• Before connecting or disconnecting any communication cable, always turn off the
instrument and your device to be connected. Failure to do so could result in an
equipment malfunction or damage to the equipment.
• After inserting the connector, securely tighten the screws of the connector. Failure to
do so could result in an equipment malfunction or damage to the equipment.
• To prevent damage to the equipment, use the recommended type of wires to connect
your external equipment to the external control terminal, or otherwise ensure that the
wires have sufcient withstand voltage and current capacity.
Refer to “2.3 Connecting the External Control Terminals” (p. 53).
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How to Refer to This Document
How to Refer to This Document
How to open a screen
Indicates the order of clicking the
screens.
The button
represents the
setting key.
Procedure numbers
Numbered same as a
corresponding step-by-step
instruction.
Options and explanations
Describes selectable settings
when an item is clicked.
The icon
indicates the default
setting of the item.