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MEWTF-1A1D-G

更新时间：2024-10-29 22:25:35

品牌：MSYSTEM

描述：Plug-in Signal Conditioners M-UNIT

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MEWTF-1A1D-G 概述

Plug-in Signal Conditioners M-UNIT

MEWTF-1A1D-G 数据手册

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MODEL: MEWTF

B: 100 V / 200 V / 5 A AC (single-phase / 3- wire)

Plug-in Signal Conditioners M-UNIT

[3] FREQUENCY

1: 50 Hz

WATT TRANSDUCER

(high-speed response)

2: 60 Hz

Functions & Features

• Providing a DC output signal in proportion to AC active

power

[4] OUTPUT

Current

• Measuring bidirectional power flow

• DC output containing little ripple is ideal for computer

input

A: 4 – 20 mA DC (Load resistance 600 Ω max.)

B: 2 – 10 mA DC (Load resistance 1200 Ω max.)

C: 1 – 5 mA DC (Load resistance 2400 Ω max.)

D: 0 – 20 mA DC (Load resistance 600 Ω max.)

E: 0 – 16 mA DC (Load resistance 750 Ω max.)

F: 0 – 10 mA DC (Load resistance 1200 Ω max.)

G: 0 – 1 mA DC (Load resistance 12 kΩ max.)

GW: -1 – +1 mA DC (Load resistance 10 kΩ max.)

Z: Specify current (See OUTPUT SPECIFICATIONS)

Voltage

• Isolation up to 2000 V AC

• High-density mounting

Typical Applications

• Quick countermeasure against fast and violent signal

variations in power surveillance systems

(1.97)

1: 0 – 10 mV DC (Load resistance 10 kΩ min.)

2: 0 – 100 mV DC (Load resistance 100 kΩ min.)

3: 0 – 1 V DC (Load resistance 1000 Ω min.)

4: 0 – 10 V DC (Load resistance 10 kΩ min.)

5: 0 – 5 V DC (Load resistance 5000 Ω min.)

6: 1 – 5 V DC (Load resistance 5000 Ω min.)

1W: -10 – +10 mV DC (Load resistance 10 kΩ min.)

2W: -100 – +100 mV DC (Load resistance 100 kΩ min.)

3W: -1 – +1 V DC (Load resistance 1000 Ω min.)

4W: -10 – +10 V DC (Load resistance 10 kΩ min.)

5W: -5 – +5 V DC (Load resistance 5000 Ω min.)

0: Specify voltage (See OUTPUT SPECIFICATIONS)

(3.15)

136

(5.35)

mm (inch)

MODEL: MEWTF-[1][2][3][4]–[5][6]

ORDERING INFORMATION

• Code number: MEWTF-[1][2][3][4]-[5][6]

Specify a code from below for each [1] through [6].

(e.g. MEWTF-211A-B/CE/Q)

[5] POWER INPUT

AC Power

B: 100 V AC

•Calibration range (e.g. 0 – 500 W)

•VT ratio, CT ratio (e.g. VT 3300/110 V, CT 250/5 A)

•Special output range (For codes Z & 0)

• Specify the specification for option code /Q

(e.g. /C01/S01)

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

[1] CONFIGURATION

1: 3-phase / 3-wire (CE not available)

[6] OPTIONS (multiple selections)

Standards & Approvals

2: Single-phase / 2-wire

3: Single-phase / 3-wire (CE not available)

blank: Without CE

/CE: CE marking

[2] INPUT (unbalanced load)

1: 110 V / 5 A AC

(Select ‘2’ for ‘Configuration’ code.)

Custom specification

2: 110 V / 1 A AC

(Refer to the custom specification list for difference

of specification and combination of code numbers.)

blank: none

3: 220 V / 1 A AC

4: 220 V / 5 A AC

A: 100 V / 200 V / 1 A AC (single-phase / 3- wire)

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 1/7

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

MODEL: MEWTF

/X1: Input range (CE not available)

Other Options

• 3-phase / 3-wire

VOLTAGE INPUT CURRENT INPUT

BURDEN BURDEN

0.1VA 2

STD

RANGE

AVAILABLE

RANGE

blank: none

200W

1000W

400W

100W – 240W

500W – 1200W

200W – 480W

/Q: Option other than the above (specify the specification)

110V 0.2VA 2

0.5VA 2

0.1VA 2

220V 0.4VA 2

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

0.5VA 2

2000W 1000W – 2400W

• Single-phase / 2-wire

VOLTAGE INPUT CURRENT INPUT

STD

RANGE

AVAILABLE

RANGE

/C02: Polyurethane coating

BURDEN

0.1VA

/C03: Rubber coating

100W

500W

50W – 120W

250W – 600W

100W – 240W

500W – 1200W

110V 0.2VA

TERMINAL SCREW MATERIAL

/S01: Stainless steel

0.5VA

0.1VA

200W

220V 0.4VA

0.5VA

1000W

GENERAL SPECIFICATIONS

Construction: Plug-in

• Single-phase / 3-wire

VOLTAGE INPUT CURRENT INPUT

BURDEN BURDEN

0.1VA 2

STD

RANGE

AVAILABLE

RANGE

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

200W

100W – 240W

500W – 1200W

100/

0.2VA 2

200V *1

0.5VA 2

1000W

Housing material: Flame-resistant resin (black)

Isolation: Voltage input to current input to output to power

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

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

Span adjustment: 95 to 105 % (front)

100/200V: 100V = phase voltage

200V = line voltage except the grounding.

OUTPUT SPECIFICATIONS

■ DC Current: 0 – 20 mA DC and ± 1 mA

Minimum span: 1 mA

INPUT SPECIFICATIONS

Frequency: Rated frequency ±2 Hz

• Current Input

Offset: Max. 1.5 times span

Load resistance: Output drive 12 V maximum; 10 V for [±]

output

Operational range: 0 – 120 % of rating

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

sec., 120% continuous

■ DC Voltage: -10 – +12 V DC

Minimum span: 5 mV

• Voltage Input

Offset: Max. 1.5 times span

Operational range: 10 – 120 % of rating

Overload capacity: 150 % of rating for 10 sec., 120 %

continuous

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

■ OPERATION DIAGRAM (example)

OUT

20 mA

OUT

10 V

■ 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. Specify this range when

ordering.

500

1000 W

500

1000 W

[example]

OUT

20 mA

OUT

+10 V

3-phase / 3-wire, measuring wattage 750 kW,

VT 3300/110 V, CT 250/5 A

750 × 10 [W] ÷ ((3300÷110) × (250÷5))= 0 – 500 [W]

-10 V

-1000 W

+1000 W

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 2/7

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

MODEL: MEWTF

INSTALLATION

Power input

•AC: Operational voltage range: rating ±10 %,

50/60 ±2 Hz, approx. 3.5 VA

Operating temperature: -5 to +60°C (23 to 140°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface or DIN rail

Weight: 450 g (0.99 lb)

PERFORMANCE in percentage of span

Accuracy: ±1.0 %

Temp. coefficient: ±0.1 %/°C (±0.06 %/°F)

Response time: Approx. 40 msec. (0 – 90 %)

Ripple: 1 %p-p max.

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @ 1 minute

(voltage input to current input to output to power to ground)

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

Low Voltage Directive

EN 61010-1

Measurement Category II (input)

Installation Category II (power)

Pollution Degree 2

Input to output or power: Reinforced insulation (300 V)

Output to power: Basic insulation (300 V)

RoHS Directive

EN 50581

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 3/7

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

MODEL: MEWTF

CONNECTION DIAGRAM

■ 3-PHASE/3-WIRE

■ SINGLE-PHASE/2-WIRE

SOURCE

FUSE

–

OUTPUT

POWER**

LOAD

*CT Protector (model: CTM) attached to these terminals.

LOAD

*CT Protector (model: CTM) attached to these terminals.

■ SINGLE-PHASE/3-WIRE

SOURCE

N 2

**The transducer can be powered from the input voltage

when the voltage is sufficiently stable and meets

other supply voltage requirements.

FUSE

–

OUTPUT

POWER**

LOAD

*CT Protector (model: CTM) attached to these terminals.

EXTERNAL DIMENSIONS unit: mm (inch)

CLAMP

(top & bottom)

7.8 (.31)

DIN RAIL

35mm wide

2–

4.5 (.18) dia.

MTG HOLE

25 (.98) deep

10 11

–M3.5

SCREW

50 (1.97)

107 (4.21)

136 (5.35)

40 (1.57)

50 (1.97)

[3.3 (.13)]

• When mounting, no extra space is needed between units.

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 4/7

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

MODEL: MEWTF

TERMINAL ASSIGNMENTS unit: mm (inch)

CT PROTECTOR

(model: CTM)

Positions of CTM

For Single-phase / 2-wire

For Three-phase / 3-wire

or Single-phase / 3-wire

10 11

Specifications are subject to change without notice.

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 5/7

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

MODEL: MEWTF

CUSTOM SPECIFICATION LIST

Refer to the following pages for each detailed custom specification.

Custom specification: Option /X1

■ Major specification changes

Input 0%: -10 - 0 % of input 100% (W)

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 6/7

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

MODEL: MEWTF

CUSTOM SPECIFICATION : OPTION /X1

Major specification changes

Input 0%: -10 - 0 % of input 100% (W)

MODEL: MEWTF-[1][2][3][4]–[5][6]

Same as standard specification (without customization)

except followings.

Refer to standard specification pages.

ORDERING INFORMATION

• Code number: MEWTF-[1][2][3][4]-[5][6]

For each [1] through [6] same code as standard

specification is available.

Be sure to specify /X1 of option [6].

(e.g. MEWTF-111A-B/X1/Q)

Refer to standard specification pages.

SPECIFICATION CHANGES

■ Input specifications

• Available input range

The value for 0% is within -10 - 0 % of input 100%.

e.g. Input range: -75 to 1000 [W]

-75 [W] ÷ 1000 [W] × 100 = -7.5 [%]

■ OPERATION DIAGRAM (example)

OUTPUT

20 mA

OUTPUT

+10 V

INPUT

+1000 W

INPUT

+1000 W

-10

-1000

-75

-75 0

MEWTF SPECIFICATIONS

ES-1927 Rev.7 Page 7/7

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

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