AC Power Transducer/Sensor

WM SERIES AC Power transducers

SINGLE PHASE/3-PHASE 3-WIRE/3-PHASE 4-WIRE

DIN RAIL/PANAEL MOUNT/ACTIVE/REACTIVE

DESCRIPTION

WM series AC power transducers and transmitters are designed to provide a controlled output that is proportional to the average power. These devices provide an efficient solution to most power sensing needs. Units are designed for operational systems with sinusoidal voltage and current waveforms and featured with high accuracy, low wiring costs, easier installation and low power consumption and low cost.

APPLICATIONS (For General Applications)

Energy Management

Motor efficiency

Multi-point power sensing

Technical specification for single phase AC power transducer

Input Measuring Range:

AC voltage: 10V, 110V, 220V, 380V, 500V

AC current: 5A, 10A, 20A, 30A, 50A

Allowed Overload:

For voltage: 2 times of nominal input value, for 1 second;

For current: 20 times of nominal input value, for 1 second;

Working frequency: 50 Hz

Frequency Range: 25Hz –5KHz

Linearity Range:

Current:1%-120%

Voltage:20%-120%

Cos Ø: 0.1-1-0.1

Input Impedance: Ux*1kΩ  (Ux means measurement voltage)

Aperture: Ø9mm

Output characteristics

DC voltage or current output (unidirectional also available)

DC voltage: 2.5V±2.5V; 0-5V

DC current:0-20mA; 4-20mA

Response time: 300ms

Static Current: please see datasheets for each model

Load Capacity: 5mA

Output ripple:≤10mV

Temperature drift: 250ppm

Isolation

Input to output isolated, or

Input to output to power supply isolated

Insulation Voltage :> 2500Vdc, one minute;

Accuracy: 0.5%

CMRR: 60dB (50Hz)

Power Supply available:

DC+12V; or +24V

Environmental temperature: 0~50℃

Storage temperature:-25 ℃ ~70℃

MTBF :> 50000 hours;

Installation: DIN rail mount or M3 Screw

Case protection: IP 20; conform with UL94V-0

Technical specification for 3- phase AC power transducer

Input:

Phase voltage: AC 57.7V-289V;

Line voltage: AC 100V-500V;

Current: AC 1A-10A

Allowed Overload:

For voltage: 2 times of nominal input value, for 1 second;

For current: 20 times of nominal input value, for 1 second;

Working frequency: 50 Hz

Linearity:

Current:1%-120%

Voltage:20%-120%

Cos Ø: 0.1-1-0.1

Input Impedance: Ux*1kΩ (Ux means measurement voltage)

Output:

Two channel-Analogue output:

DC voltage or current output (unidirectional also available)

DC voltage: 2.5V±2.5V; 0-5V

DC current: 0-20mA; 4-20mA

One channel-Digital output: RS485. Protocol agreement: Modbus -RTU

Output parameters:

E,R,P,Q,C,S, Ua,Ub,Uc,Uab,Ubc,Uac,Ia,Ib,Ic,Pa,Pb,Pc,Qa,Qb,Qc,Ca,Cb,Cc,Sa,Sb,Sc

Response time: 200ms

Static Current: 65mA

Load Capacity: 5mA

Output ripple: ≤10mV

Temperature drift: 100ppm

Isolation:

EMC circuitry design

Input to output to power supply isolated

Insulation Voltage :>2500Vdc, one minute;

Accuracy: 0.5%

Power Supply available: DC+12V; or +24V

Environmental temperature: 0~50℃

Storage temperature:-25 ℃ ~70℃

MTBF :> 50000 hours;

Installation: DIN rail mount or M3 Screw

Case protection: IP 20; conform with UL94V-0