? ? ? Our Services ?ONE YEAR WARRANTY ? Product Description ?EM 300A-1CY POWER?METER New lead free model for optional Function description ? 1 Display & measure l? Voltage l? Current l? Voltage unbalance degree l? Current unbalance degree l? Current load degree l? Active power, reactive power and apparent power l? Power factor l? Frequency l? Total active energy absolute ,total reactive energy absolute l? Input active energy absolute, input reactive energy absolute l? Output active energy absolute, output reactive energy absolute l? 4 quadrants reactive energy ? 2 Harmonic analysis: ?? THD(voltage/current),THD(odd/even),2~31 times harmonic component occupancy ? 3 Load type: Indicate the current load type: Capacitive load or Inductive load ? 4 Remote transfer: 2DI real time switch-status monitoring,electric level and impulse output setting ? 5 Remote signaling: ?? 4 channel DI real time switch-status monitoring ? 6 Off-limit alarm style ???? Support over current,under voltage,over voltage,under frequency,over frequency, ???? under power factor off-limit alarm ? 7 Remote communications l? Communication interface:RS485 l? ModBUS-RTU protocol ? 8 SEO record:max. 64 alarms and DI events ? 9 Demand record:record the max. Demand of total active power(+/-), demand and occurrence time of the max. Demand of total reactive power(+/-) of this month and the last month. ? 10 The mix./min. Value of the current,voltage,frequency,power factor,active/reactive/apparent power and the occurrence time of the max./min.value. ? 11 Multi-rate:max. 8 schedules and 4 rates ? 12 Display:real time parameter,DI/DO status ? 13 Factors setting and register when power off suddenly ? EMC?Standard ? ? ? ? ?