Precautions For Safe Use - Omron K7DD User Manual

Precautions for Safe Use

(1) Do not store, install, or use the Product in the following locations:
• Outdoor or locations subject to direct sunlight
• Locations subject to rain and wind damage
• Locations subject to excessive vibration or shock
• Locations subject to rapid temperature changes
• Locations prone to icing and dew condensation
• Locations subject to water or oil
• Locations subject to dust or corrosive gases (particularly sulfurizing gases, ammonia, etc.)
• Locations subject to influence of static electricity and noise
• Locations subject to bugs and small animals
• Locations subject to electromagnetic fields
• Locations subject to a load
(2) A switch or circuit breaker should be provided close to the Product. The switch or circuit breaker
should be within easy reach of the operator, and must be marked as a means to cut off the power
to the Product.
(3) Mount the Product in the correct direction for installation.
(4) Use and store the Product in a location where the ambient temperature and humidity are within the
specified ranges. If applicable, provide forced cooling.
(5) Be sure to use terminals of operation power supply carefully, because they have hazardous
voltage.
(6) Use the wire given in this manual.
(7) When wiring, use a wire of sufficient length.
(8) Make sure that the operation power supply voltage and the load voltage and current are within the
specifications of the Product.
(9) Check terminal polarity when wiring and wire all connections correctly. Do not wire the input and
output terminals incorrectly.
(10) Make sure the crimp terminals for wiring are of the specified size.
(11) Do not wire anything to the release holes.
(12) Confirm that the input and output terminals are correctly wired before power is supplied.
(13) The terminal block may be damaged if you insert a flat-blade screwdriver in the release hole with
excessive force. When inserting a flat-blade screwdriver into the release holes, operate with a
force of 15·N or less.
(14) To prevent inductive noise, wire the lines connected to the Product separately from power lines
carrying high voltages or currents. Also, do not wire in parallel with or on the same cables as power
lines. Other measures for reducing noise are to separate from ducts including noisy lines.
(15) The Product may be subject to radio disturbances. Do not install the Product near equipment that
generates high frequencies or surges.
(16) The maximum terminal temperature is 65°C. Use wires with a heat resistance of 65°C minimum to
wire the terminals.
(17) For accurate measurement with the Product, use the range suitable for the measurement voltage
and current.
(18) Periodically check that the LCD display and LED indicators operate correctly. Depending on the
operating environment, the display or indicators may fail due to deterioration.
(19) Do not exceed the communications distance that is given in the specifications and use the
specified communications cable. For information on the communication distance and the cable,
refer to
Power Line Data Generator User's Manual (N233)
A-1 Specifications (P.A-2).
Precautions for Safe Use
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