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Business > Industrial Devices > Automation Controls Top > FA Sensors & Components > Energy Management Solutions > Eco Series (Simple Watt-Hour Meter/ Simple Power-On Counter/ Power-On Hour Meter) > KW2M Eco-POWER METER(Discontinued Products) > Rating/ Performance

KW2M Eco-POWER METER (Discontinued Products)

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We are sorry, the products have been discontinued. Please refer to the details of the discontinued products and the recommended substitutes list below.

	September 29, 2023

Discontinued Products
Information

Rating/ Performance

Dimensions

Rating/ Performance

General specifications

Item		Specification
Supply voltage range		100-240V AC
Rated frequency		50 / 60Hz
Nominal power consumption		15VA approx. (240V AC at 25 ℃ +77 ℉)
Inrush current		30A or less (240V AC/DC at 25 ℃ +77 ℉)
Allowable momentary power-off time		10ms
Ambient temperature	Operation	at -10 to +50 ℃ +14 to +122 ℉
Ambient temperature	Storage	at -25 to +70 ℃ -13 to +158 ℉
Ambient humidity		30 to 85%RH (at +20 ℃ +68 ℉) non-condensing
Breakdown voltage (initial)		Between the isolated circuits: 2,000V / 1min
Breakdown voltage (initial)		a) enclosure ↔ all terminals b) primary insulated circuits ↔ secondary insulated circuits (Double insulation) • power supply terminals ↔ other terminals • voltage input terminals ↔ other terminals
Insulation resistance (initial)		Between the isolated circuits: 100 MΩ or more
Vibration resistance		10 to 150Hz (7.5 minutes/cycle) single amplitude:0.075mm (1h on 3 axes)
Vibration resistance		10 to 55Hz (1 minute/cycle) single amplitude:0.375mm (1h on 3 axes)
Shock resistance		Min. 294m/s² (5 times on 3 axes)
Display method		LCD with backlight
Display updated cycle		500, 1,000, 2,000, 3,000 ms (set with setting mode)
Power failure memory method (when power is off)		Internal memory
Sea level altitude		Under 2,000m
Overvoltage category		III
Pollution degree		2
Dimensions W/H/D	Main unit	85 x 140 x 65 mm 3.346 × 5.512 × 2.559 in
Dimensions W/H/D	Expansion unit	85 x 70 x 65 mm 3.346 × 2.756 × 2.559 in
Weight	Main unit	450 g approx.
	Expansion unit (Power measurement)	200 g approx.
	Expansion unit (Digital I/O, Multi analog input)	140 g approx.
Calender 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 ℃ +77 ℉)
	Back up period	About 1 month (by secondary battery when power off after 48-hours or more of power on time, at +23 ℃ +73.4 ℉)

*1 only KW2M-X

Measurement items (for AKW263100A, AKW264100A and AKW272100A)

Item		Display data range
Instantaneous power (Active, Reactive, Apparent)		-999.99P to 999.99P (W, var, VA)
Total integral power (import) (Active, Reactive, Apparent)		0.000k to 9999.9P (Wh, varh, VAh)
Total integral power (export) (Active, Reactive)		0.000k to 9999.9P (Wh, varh)
Current		0.000 to 999.99k (A)
Voltage		0.00 to 9999.9k (V)
Power factor		-1.000 to 0.000 to 1.000
Frequency		0.00 to 99.99 (Hz)
Pulse count value		0.000 to 999999
Power conversion value		0.000k to 9999.9P
Leakage current		0.0000 to 99999.9999 (A)
Power quality	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, Line)	0.00 to 400.00 %
	Hour Meter (ON-time, OFF-time, Stand-by time, Maintenance time)	0.0 to 99999.9 h
Present demand ^*1	Active, Reactive, Apparent, Active (export), Reactive (export)	0.000k to 999.99M (W, var, VA)
Present demand ^*1	Current	0.000k to 999.99k (A)

* 'Display data range' is the range to be able to indicate with the main unit display, it is not a range that can be measured.

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

*1 Please use this demand function as your standard.
The demand value calculated with this function is not guaranteed.

*	'Display data range' is the range to be able to indicate with the main unit display, it is not a range that can be measured.
*	If the voltage to be measured is not the rated frequency (commercial frequency), it may take time to stabilize THD (total harmonic distortion).
*1	Please use this demand function as your standard. The demand value calculated with this function is not guaranteed.

Accuracy (for AKW263100A, AKW264100A and AKW272100A)

Item	Specifications
Electrical power	±0.5%	Active power Compliant Class 0.5S (IEC 62053-22) Reactive power Compliant Class 2 (IEC 62053-23)
Current	±0.2%^*1 ±0.5% for 2(N)-phase of 1P3W and 2(S)-phase of 3P3W.
Voltage	±0.2%	±0.5% for 2-phase of 1P3W, 3-1 voltage of 3P3W and line voltage of 3P4W.

*1 When it measures current under 5% of rating, it may not satisfy the accuracy according to setting of CT. (Max.error 0.5%) The tolerance of CT sensor and VT(instrument voltage transformer) are not included.

*1	When it measures current under 5% of rating, it may not satisfy the accuracy according to setting of CT. (Max.error 0.5%) The tolerance of CT sensor and VT(instrument voltage transformer) are not included.

Output specifications (for AKW263100A, AKW264100A and AKW274240A)

Item		Specifications
Number of output point	Main unit	2 points (insulate between output terminals)
Number of output point	Expansion unit (Digital I/O)	4 points (insulate between output terminals)
Insulation method		MOSFET relay
Output type		1a
Output capacity		100mA, 30V AC/DC
Output mode (OUT1/OUT2)		• Pulse by integral power • Output by alarm or events (set with setting mode)

Digital input specifications (for AKW263100A, AKW264100A and AKW274240A)

Item		Specifications
Number of input point	Main unit	1 point
Number of input point	Expansion unit (Digital I/O)	2 points
Insulation method		Designated insulation for input (insulate to the other functions)
Input method		Contact/ non-voltage a contact or open-collector
Input signal		Non-voltage	• Impedance; Max. 1kΩ (when short-circuit current: Max. 10mA) • Residual voltage when shorted; Max. 3V • Impedance when open: Min. 100kΩ
Input mode		Pulse input Synchronized with input from outer device^1 Measure maintenance time^1
Max. counting speed		2000Hz / 30Hz
Min. input signal width		0.25ms (when 2000Hz is set) / 16.7ms(when 30Hz is set) ON:OFF ratio=1:1

*1 Only KW2M-X

Analog input specifications (for AKW273230A)

Item		Specifications
Input channel		3 channels
Input range (select with setting mode)	Voltage	0 to 60V
Input range (select with setting mode)	Current	0 to 20mA / 4 to 20mA (set with setting mode)
Resolution		24bit
Total accuracy		Within ±0.1%F.S.(at +25℃ +77 ℉), Within ±0.3%F.S.(at -10 to +50℃ +14 to +122 ℉)

RTD input specifications (for AKW273230A)

Item		Specifications
Input channel		2 channels
Input range	PT100	-200.0 to +200.0 ℃ -128.9 to +93.3 ℉
Input range	PT1000	-200.0 to +200.0 ℃ -128.9 to +93.3 ℉
Resolution (24bit)		0.1 ℃
Total accuracy	CH1	Within ±0.3%F.S.(at +25 ℃ +77 ℉), Within ±0.5%F.S.(at -10 to +50 ℃ +14 to +122 ℉)
Total accuracy	CH2	Within ±0.5%F.S.(at +25 ℃ +77 ℉), Within ±1.0%F.S.(at +10 to +40 ℃ +50 to +104 ℉), Within ±1.5%F.S.(at -10 to +50 ℃ +14 to +122 ℉)