มิเตอร์วัดค่าไฟฟ้า มิเตอร์วัดกำลังไฟฟ้า เพาเวอร์มิเตอร์ RS485 3-Phase Power Energy Meter 4-digit Electric
มิเตอร์วัดค่าไฟฟ้า มิเตอร์วัดกำลังไฟฟ้า เพาเวอร์มิเตอร์ RS485 3-Phase Power Energy Meter 4-digit Electric Current Voltage VA Hz kWh YG889-9SY
Features:
The power meter is easy to operate safe accurate durable intelligent and energy saving.
Housing is made of flame retardant ABS material the structure is more secure.
Plug type connectors are more convenient to wire.
Designed with many heat dissipation holes on the back for more safe use.
High quality blue backlight LCD screen offers a high-definition display on day or night.
Support RS485 communication.
Specifications:
AccuracyVoltage/Current:0.5% 0.2%;Frequency:0.1%;PowerPower Factor:0.5%
Display4-digit
InputNominalCurrentAC5A
VoltageAC380V
OverloadContinuous: 1.2times; Instantaneous: voltage 2times(10sec.) current 10times(5sec.)
Frequency50/60Hz±10%
Power SupplyAuxiliary Power SupplyAC220V±5%
Power Consumption<3VA
Dielectric StrengthAC2kV
Insulation Resistance≥100MΩ
Average Lifespan≥50000h
Working EnvironmentTemperature: -10~55;Relative Humidity:≤93%; No corrosive gas; Altitude:≤2500m
Note:
The meter should be connected to power for 15 minutes before use.
Protect it against vibration or impact and do not use it in environment of much dust or noxious gas.
Input wire should not be too long. If measured signal input terminal is too long please try using twisted-pair shielded wire.
If signal has high frequency interference low frequency filter should be tried using in wire.
During long-term storage please connect it to power for at least 4 hours once every three months.
For long-term storage it should be kept in temperature - 25 ~ 55 and away from direct light.
If meter does not display please first check if the voltage of auxiliary power supply is in the normal range.
If meter displays abnormally please check if the input signal is normal and signal terminal are connected tightly.
Do not use PT signals as auxiliary power in order to guarantee he meter can normally work unless the PT has enough power.
Terminals of CT circuits must be connected tightly ensuring reliable input/output contact.
If need to calibrate meter use calibration instrument which has accuracy better than 0.1%.
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#วัตต์มิเตอร์ #วัตต์ฮาวร์มิเตอร์ #energy meter #Watt meter
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