MODEL: KUWEN

KUWEN SPECIFICATIONS

ES-3651 Rev.8 Page 2/4

http://www.m-system.co.jp/

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Isolation: Voltage input to current input to DC output to

pulse output

Computation: Time division multiplication

Overrange output: Approx. -10 to +120 % at 1 – 5 V

Zero adjustment(DC output): -5 to + 5 % (front)

Span adjustment(DC output): 95 to + 105 % (front)

INPUT SPECIFICATIONS

Frequency: 50 or 60 Hz

• Voltage Input

Operational range: 85 – 110 % of rating

Overload capacity: 150 % of rating for 10 sec., 110 %

continuous

• Current Input

Operational range: 0 – 120 % of rating

Overload capacity: 1000 % of rating for 3 sec., 200 % for 10

sec., 120 % continuous

■ How To Determine Wattage Range

Calibration Range [W] = (Measuring Wattage) ÷

((VT Ratio) × (CT Ratio))

Check that the required calibration range is within the

available range in the table.

[example]

3-phase / 4-wire, measuring wattage 75 kW,

VT 127 / 127 V, CT 250 / 5 A

I INPUT RANGE

• 3-phase / 4-wire

INPUT

BURDEN (VA)

STD.RANGE

AVAILABLE

RANGE

VOLT. CURR.

±200 W

±1000 W

0.1

/phase

±100 – ±240 W

±500 – ±1200 W

0.5

/phase

: 2.5

: 0.1

: 2.5

: 0.3

±350 W

±1750 W

0.1

/phase

±175 – ±420 W

±875 – ±2100 W

0.5

/phase

±400 W

±2000 W

0.1

/phase

±200 – ±480 W

±1000 – ±2400 W

0.5

/phase

±700 W

±3500 W

0.1

/phase

±350 – ±840 W

±1750 – ±4200 W

0.5

/phase

/1A

110V

√ 3

__

/5A

110V

√ 3

__

/1A

190V

√ 3

__

/5A

190V

√ 3

__

/1A

220V

√ 3

__

/5A

220V

√ 3

__

/1A

380V

√ 3

__

/5A

380V

√ 3

__

: 2.5

: 0.2

: 2.5

: 0.4

OUTPUT SPECIFICATIONS

■ DC OUTPUT

• DC Current: 0 – 20 mA DC and ± 1 mA

Minimum span: 1 mA

Offset: Max. 1.5 times span

Load resistance: Output drive 12 V max.

• DC Voltage: -10 – +12 V DC

Minimum span: 5 mV

Offset: Max. 1.5 times span

Load resistance: Output drive 1 mA max. at ≥ 0.5 V

■ Pulse Output: Open collector; 0 Hz at 0 W

(Cutout at approx. 0.5 – 1.0 %)

Rating: 35 V DC @ 100 mA

ON voltage: ≤ 1 V at 100 mA

ON duration: max. 0.5 sec., min. 50 msec.

Frequency range: 2.777 Hz (at 100 %)

[Example] 1000 W calibration range

2.777 [Hz] × 3600 [sec.] ÷ 1 [kW] = 10000 [pulse/kWh]

500

1000 W

0

12

OUT

20 mA

500

1000 W

0

5

OUT

10 V

4

0

+1000 W

-1000 W

12

OUT

20 mA

0

+1000 W

-1000 W

0

OUT

+10 V

4

-10 V

s OPERATION DIAGRAM (example)

INSTALLATION

Operating temperature: -10 to +55°C (14 to 131°F)

Operating humidity: 30 to 85 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 500 g (1.1 lb)

PERFORMANCE in percentage of span

Accuracy: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,

45 – 65 Hz)

Response time: ≤ 2 sec. (0 – 100 % ±1 %)

Ripple: 0.5 %p-p max.

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @ 1 minute

(voltage input to current input to DC output to pulse output

to ground)

Impulse withstand voltage: 1.2 / 50 μsec., ±5 kV

(input to output or ground)