For Electric Power Monitoring

Item

Specification

Electrical power

0.5%

Active electric power Compliant Class 0.5S (IEC 62053-22) *1

Reactive electric power Compliant Class 2 (IEC 62053-23)

Current

0.2% *2

* Single-phase three-wire system 2 (N) phase current, three-phase

three-wire system 2 (S) phase current, 0.5%

Voltage

0.2%

* Single-phase three-wire system 2 (N) phase voltage,

three-phase three-wire system between 3-1 voltage,

three-phase four-wire system line voltage is 0.5%

* The tolerances of CT sensor and VT (instrument voltage transformer) are not included.

* 1 IEC62053 is the international standard for electrical power measuring devices.

* 2 Current less than 5% of rated value may be outside of accuracy assurance range

according to CT setting (maximum tolerance: 0.5%).

*1 Only CH1 of main unit is available.

Only current transformer input is available for CH2 of main unit and expansion unit.

*2 Only

AKW264100A

* Windows is the trademark of Microsoft Corporation in USA and other companies.

Google Chrome and Android are the trademarks of Google Inc.

Firefox is the trademark of Mozilla Foundation in USA and the other companies.

Safari and OS X are the trademark or the registered trademark of Apple Inc. of USA.

iOS is the trademark or the registered trademark of Cisco in USA ans the other companies.

*1 Use OS and browser with the latest version.

*2 System Web is not supported.

* The data display range is the numerical value range which can be displayed by the main unit's display

section and is not the allowable measurement range.

* If the voltage to be measured is not the rated (commercial) frequency, it may take time for THD (total

harmonic distortion) to stabilize.

* Please use this demand function as your standard.

The demand value calculated with this function is not guaranteed.

*1 Only

AKW264100A

Item

Data display range

Instantaneous power

Active

−999.99GW to 0.000kW to 999.99GW

Reactive

Apparent

Integral power (import)

Active

0.000kWh to 9999.9PWh

Reactive

Apparent

Integral power for each

time zone (4 zone ) (import)

Active

0.000kWh ~ 9999.9PWh

Reactive

Apparent

Integral power (export)

Active

0.000kWh to 9999.9PWh

Reactive

Integral power for each

time zone (4 zone) (export)

Active

0.000kWh ~ 9999.9PWh

Reactive

Current

0.000 to 99.999kA

N-phase when 3P4W

Voltage (Phase and Line voltage)

0.00 to 999.99kV

Power factor

−1.000 to 0.000 to 1.000

Frequency

0.00Hz to 99.99Hz

Pulse count value

0.000 to 99999999

Power conversion value

0.000kWh to 9999.9PWh

Unbalanced current

Each phase

0.00% to 300.00%

Unbalanced voltage

Each phase

0.00% to 300.00%

Current THD (total harmonic distortion)

Each phase

0.00% to 400.00%

Voltage THD (total harmonic distortion)

Each phase

0.00% to 400.00%

Current harmonics (2nd to 31st)

Each phase

0.00% to 400.00%

Voltage harmonics (2nd to 31st)

Phase

0.00% to 400.00%

Line

0.00% to 400.00%

Hour-meter measurement

ON

0.0h to 99999.9h

OFF

0.0h to 99999.9h

Standby

0.0h to 99999.9h

Maintenance

0.0h to 99999.9h

Active

Reactive

Present demand

(Present value (inst. value) / Maximum demand)

Apparent

0.000 kW to 999.9MW

Active (export)

Reactive (export)

Current

Item

Specifications

Supply voltage range

100 to 240V AC

Rated frequency

50/60Hz

Nominal power consumption

15VA（240V AC）

Inrush current

30 A or less (240 V AC at 25℃)

Allowable momentary power-off time

10ms

Ambient temperature

Operation: -10 to +50℃ 14 to 122°F

Storage: -25 to +70℃ −13 to 158°F

Ambient humidity

30 to 85% RH (at 20℃ 68°F) with non-condensing

Breakdown voltage(initial)

Between the isolated circuits: 2000 V/1 min

● Enclosure - All terminals

● Between primary and secondary insulated

circuits (Double insulation is supported)

(1) Power supply terminals – other terminals

(2) Voltage input terminal – other terminals

Insulation resistance(initial)

Between the isolated circuits: 100 MΩ or more

Vibration resistance

10 to 150 Hz (7.5 minutes/cycle)

Single amplitude: 0.75 mm 0.030 in (1 h on 3 axes)

10 to 55 Hz (1 minute/cycle)

Single amplitude: 0.375 mm 0.015 in (1 h on 3 axes)

Shock resistance

Min. 294 m/s2 (5 times on 3 axes)

Display method

Black-and-white LCD with backlight (graphic form)

Display updating time cycle

500, 1000, 2000, 3000 ms (set with setting mode)

Power failure memory method

Internal memory

Sea level altitude

Under 2,000 m 6,562 ft

Overvoltage category

Ⅲ

Pollution degree

2

Dimensions W/H/D

Main unit: 85×140×65 mm 3.346×5.512×2.559 in

Expansion unit: 85×70×65 mm 3.346×2.756×2.559 in

Weight

Approx. 450 g (Main unit)

Approx. 200 g (Expansion unit)

Calendar timer

*1

Range

January 1, 2015 00:00:00 to December 31, 2099 23:59:59

(leap year supported)

Time accuracy

Monthly accuracy max. 15 sec. (at 25°C)

Back up period

About 1 month

(by secondary battery *When power off after 48-hour or

more of power on time, at 23°C)

Measurement items

Accuracy

General specifications

■ Specifications

Main unit memory specifications (for

AKW264100A)

Web server specifications

Demand monitoring and specifications

Demand type

・IEC61557-12 Compliant demand

1. Sliding block interval demand

2. Fixed block interval demand

3. Current demand

Demand monitor input type

Current transformer input

Pulse input *1 (set with setting mode)

Demand time span

1 to 60 min. (set with setting mode)

Demand measurement item

Present demand

Demand data update cycle

1 min.

Display

Present demand (Active / Reactive / Apparent

/ Active (export) / Reactive (export) / Current)

Saved data

Max.demand, Monthly max. demand

(Latest 13 months)*2

Simultaneous access number

6 sessions

Web browser *1

Windows

Google Chrome

Mozilla Firefox

iOS *2

Safari

Google Chrome

Android *2 Google Chrome

5-min.

instantaneous

value

Save cycle

5 minutes

Saved data

R-current, S-current,T-current, N-current, Average of current

R-voltage (L1-N), S-voltage (L2-N), T-voltage (L3-N),

Average of phase-voltage,

RS-voltage (L1-L2), ST-voltage (L2-L3), TR-voltage (L3-L1)

Average of line-voltage

Pulse count value

Write timing

Every hour xx:05:05 (fixed)

Saved data

amount

96 records for 1 file (for one-day) (Max. 60 days)

15-min.

instantaneous

value

Save cycle

15 minutes

Saved data

All items excluding for harmonics and conversion

value for integral active power

Write timing

Every hour xx:15:05 (fixed)

Saved data

amount

2976 records for 1 file (for one-month) (Max. 24

months)

Demand

Save cycle

1 minute

Saved data

Present demand

(active power, reactive power, apparent power,

active power(export), reactive power(export))

Pulse conversion value for integral power,

Present current demand (1), (2), (3)

Write timing

Every hour xx:25:05 (fixed)

Saved data

amount

1000 records for 1 file (Max. 100 files)

Power quality

Saved data

Power interruption, Over voltage, Under voltage, Over

current, Under current

(with time stamp of event occurrence and occurrence period)

Write timing

Every hour xx:35:05 (fixed)

Saved data

amount

1000 records for 1 file (Max. 100 files)

Use safely and correctly after carefully reading the product specification manual, user manual, and operational instruction manual.