Cautions before using
KW2M-A/X User's Manual
3
Chapter 1 Cautions before using
■
About this product
Eco-POWER METER is designed chiefly to manage saving energy.
It cannot be legally used for billing.
■
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°C), 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.
・
Use the wire that conforms to the rated current.
・
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.
・
If the 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.
・
Although the case is made from fireproof resin, do not mount it next to flammable materials. Also,
avoid placing it directly on top of materials that catch fire easily.
・
If the operating power supply surge exceeds the following value, the internal circuit could be
destroyed, so be sure to use a surge absorption element.
Surge voltage
6,000V
Surge wave form
Standard surge waveform
The above value is the surge-voltage
resistance at ± (1.2/50)
μ
s of
single-polarity full-wave voltage.
[± (1.2/50)
μs
single-polarity full-wave voltage]
