3-11
IM 2560A-01EN
Preparation
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App
Index
During output (do not touch the terminals or the connected lead wires when this
instrument is on), check that:
• There no problems with the terminals, such as the presence of foreign substances.
• The terminals are not abnormally hot.
The terminal connections may become loose over time. If this happens, heat may be
generated due to changes in contact resistance. Periodically check that the cables are
firmly connected to the terminals. Be sure to turn off both this instrument and the target
device before you check the connections.
• If the voltage output exceeds 33 Vrms or 46.7 Vpeak, there is a danger of electric shock
due to the high voltage. Be extremely careful.
After output (immediately after the output is turned off)
After you output a voltage or current, voltage may remain for some time even after you turn
the output off. This residual voltage may lead to electric shock. Do not touch the terminals
immediately after you turn the output off. The amount of time that voltage remains varies
depending on the target device.
CAUTION
• Use lead wires that have adequate margins of withstand voltage and current capacity with
respect to the voltage or current to be sourced.
Example: To use a current of 20 A, use copper wires that have a conductive cross-sectional
area of 4 mm
2
or greater.
• When outputting current, do not open the current terminals. Doing so will trigger a
protection feature, and the output will turn off.
• When outputting voltage, do not short the voltage terminals. Doing so will trigger a
protection feature, and the output will turn off.
• Use twisted-pair lead wires to prevent oscillation.
• When using thermocouple ranges, do not apply external voltage or current. Also, do not
connect to a charged capacitive load. Doing so may damage the voltage divider inside the
2560A.
• May cause abnormal voltage output when turn off 2560A. 2560A output turned OFF and
then turn off 2560A.
3.5 Wiring Precautions
