vi
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
・
Installation and wiring must be performed by expert personnel for electrical work or electric
piping.
・
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.
・
Eco-POWER METER is designed to be used in a control panel.
・
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.
･
This can’t measure the power that flows reverse such as a regenerative electric power.
If you measure a reverse power, it shows ‘0.00kW’ and it doesn’t count.
・
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.
■
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.
