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Cautions before using
■ Installation environment
◇Do not use the Unit in the following environments.
・Where the unit will be exposed to direct sunlight and where the ambient temperature is outside
the range of -10 to 50 C.
・Where the ambient humidity is outside the range of 30 to 85 % RH (at 20℃, non-condensing)
and where condensation might occur by sudden temperature changes
・Where inflammable or corrosive gas might be produced
・Where the unit will be exposed to excessive airborne dust or metal particles
・Where the unit will be exposed to water, oil or chemicals
・Where organic solvents such as benzene, paint thinner, alcohol, or strong alkaline solutions
such as ammonia or caustic soda might adhere to the product
・Where direct vibration or shock might be transmitted to the product, and where water might wet
the product
・Where the place near high-voltage cable, high-voltage device, power line, power device.
・Where the place near a machinery with transmission function such as amateur radio.
・Where the place near a machinery which occurs the big switching serge
◇Please use the Unit according to the specifications described in this manual. Otherwise, it
may malfunction or cause fire and an electric shock.
・Connect to the power supply in compliance with the rating.
・Refer to the wiring diagram to ensure proper wiring for the power supply, input and output.
・Do not perform wiring or installation with a live line. It may also lead to circuit burnout or fire by
way of the secondary CT side opening.
■ Installation
・Eco-POWER METER is designed to be used in a control panel.
・The power supply terminal and voltage input terminal of the main unit is common. Therefore if
additional noise effects the power supply line, incorrect measurements may result.
・Installation and wiring must be performed by expert personnel for electrical work or electric
piping.
・Do not add an excess power to the display. It might break the inner liquid crystal.
■ As to measurement
･If there is some distortion by harmonic or waveform, it may not measure correctly.
Please check with the actual system before adopts it.
・It might not measure an instantaneous current such as an inrush current or an welding machine.
・When measuring the below loads, it might not satisfy with the accuracy guarantee.
Out of rating current, Load with low power factor,
Load with winding current, Load with ferromagnetic field
・Power factor operation is a method assuming balanced load. The error might be big when it
measures unbalanced load.
・It takes time to update monitor display when many units are connected. However, data
update cycle is not changed.
・The unevenness will be large when using outside of rated frequency.
In this case, set the shift average frequency big.
■ Static electricity
・Discharge static electricity touching the grounded metal etc. when you touch the unit.
・Excessive static electricity might be generated especially in a dry place.
■ Cleaning
・Wipe dirt of the main unit with soft cloth etc. When thinner is used, the unit might deform or be
discolored.
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