Harmonic Multiple Function Power Meter,RS 485

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