Acrel APM Series - 1. Overview; 2. Type and specification

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1. Overview
APM series power meters of ACREL are power meters that are designed according to IEC standards and synchronized with
international advanced technology.
APM series meters have full power measurement, energy statistics, analysis of power quality and network communications and
other functions, are mainly used for comprehensive monitoring of the quality of power supply network.
This series of meters use a modular design, with a rich function of the external DI / DO module, AI / AO module, event recording
(SOE) module with T-Flash (TF) card, network communication module, Temperature and humidity measurement module, can
achieve full power measurement of electrical circuit and monitoring of switch status, Dual RS485 with Ethernet interface can realize
data copying of RS485 master station, eliminating the need for data switching exchange. PROFIBUS-DP interface can realize
high-speed data transmission and networking function.
2. Type and specification
Function
APM800
(class 0.5s)
APM801
(class 0.2s)
APM810
(class 0.5s)
Measured parameters
Total electrical measurement
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Four-quadrant energy
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Pulse output of energy
Pulse output of active/reactive energy
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√
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Demand
Three-phase current, active power, reactive power,
real-time demand of apparent power, and maximum
demand (including time stamp)
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Extreme value statistics
Extremum of current, line voltage, phase voltage, active
power, reactive power, apparent power, power factor,
frequency, total harmonic of current, total harmonic of
voltage in this month and last month (including time stamp)
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Power quality
Unbalance of current, line voltage, phase voltage
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Voltage phase angle, current phase angle
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Voltage current phase Angle
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Total (odd, even) harmonic content of voltage and current
×
×
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Harmonic content of voltage and current (2-63 times)①
×
×
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Voltage crest factor
×
×
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Telephone waveform factor
×
×
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Current K-factor
×
×
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Alarm records
A total of 66 kinds of alarm types, each type can record the
most recent 16 alarm records, support extended records by
TF card
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Event log
Record the most recent 128 event records, support extended
records by TF card
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Communication
Modbus protocol
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√
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I/O
2 digital inputs + 2 digital outputs (2DI+2DO)
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Extensions
MD82
8 digital inputs + 2 digital outputs with
changeover contacts (8DI+2DO)
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MLOG
TF card storage (alarm records, event records,
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