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  Meter/Power Measuring Module

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Digital Power Meter
Accura 3300E
Accura 3300E
High Accuracy Digital Power Meter
Accura 3300E
High Accuracy Digital Power Meter
Realtime Power Management in Switchgear Panel
0.2% Reading/IEC62053-22 Class 0.5S Accuracy
True RMS Measuring
Power Quality
Maximum/Minimum/Average within Aggregation Interval
CE/UL Safety and Reliability
Voltage/current ±0.2% Reading
Three phase measurement, demand
Voltage/current THD, Current TDD
RS485 1 port
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Video Guide
Video Guide
Item Description
Display Realtime measurement LCD display  
Sampling/cycle 64
Commercial frequency 50/60Hz
True RMS measurement Voltage, current: 0.2% Reading
Frequency 42 - 69Hz
Zero voltage9, zero current10
Demand, peak demand, predicted demand1,2
Maximum, minimum
Maximum2 minimum2, average within aggregation interval2, 3
4 Quadrant energy
kWh/kVarh received, kWh/kVarh delivered IEC62053-22 Class 0.5S
kWh/kVarh net[kWh/kVarh received - kWh/kVarh delivered] IEC62053-22 Class 0.5S
kWh/kVarh sum[kWh/kVarh received + kWh/kVarh delivered] IEC62053-22 Class 0.5S
Power Quality
Voltage/current harmonics Up to 31stharmonic
Voltage/Current THD4, Current TDD5 Up to 31stharmonic
Crest factor6,2,K factor7,2
Unbalance[voltage, current] 2 IEC61000-4-30, NEMA MG1
Vector diagram2
Harmonic analysis graph[voltage, current]2
Oscilloscope 2
Demand trend2
Fuse Fail, Phase Open, Black Out detection
Temperature Over detection
Number of event logs Maximum 50
Temperature Atmosphere temperature inside panel8 1 sensor
Communication RS-485[1,200 ~ 115,200bps, Modbus RTU protocol] 1 port[Ta, Tb]
UL certification EN61010-13rd edition
CE certification EN61326-1, EN61326-2-1
KC certification KN22, KN24
AC power AC 85 - 265V
DC power DC 100 - 300V
1 Predicted demand is calculated by assuming that present power is equal to power of the time remaining in the demand interval.
2 Accura 3300E is not displayed on LCD screen. It is available only on communication.
3 Accura 3300E provides statistical information such as maximum, minimum, and average of voltage,
current, and power within aggregation interval only on communication. This includes information
measurement parameters of instantaneously fluctuating, which makes it possible to precisely analyze the
quality trend of voltage, current, and power.
4 THD[Total harmonic distortion], Voltage THD:, CurrentTHD:
5 TDD[Total demand distortion], Current TDD:
Wherecan be current rating, which is chosen only on communication between current rating[default] and peak demand current.
6 Crest factor:, 7 K factor:
8 It is not for firewatching, but for reference only.A temp sensor is mounted on the side of Accura 3300E.
9 Zero voltage is rms voltage by adding of three phase voltage in time domain.
10 Zero current is three times of zero-sequence current onthree phase fundamental current.
Zero current is equal to rms current by adding of three phase current in time domain.