Chapter 1 Cautions Before Using - Panasonic KW2M-A User Manual

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
Standard surge waveform
The above value is the surge-voltage
resistance at ± (1.2/50)μs of
single-polarity full-wave voltage.
KW2M-A/X User's Manual
6,000V Surge wave form
[± (1.2/50) μs single-polarity full-wave voltage]
Cautions before using
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