Mianyang Weibo Electronic WBI417S41 Bedienungsanleitung

Designing, Manufacturing and Supplying WB Series Electric Isolated Transducer and

Digital Electrical Transducer since 1989

USER MANUAL

WBI417S41 TRUE RMS SENSING

AC current transducer

www.weiboelectronic.cn

[email protected]

Tel: 86 0816 2971265

Fax: 86 0816 2281934

ISO9001/ ISO14000/ ISO18000 /Certified Company

Mianyang Weibo Electronics Co.,Limited

No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China

Tel: 86-0816-2971265 Fax: 86-016-2281934

www.weiboelectronic.cn

wbwm@wbdz.cn

WBI417S41 TRUE RMS SENSING AC current transducer

Safety claim

The information in the safety claim of the equipment documentation is intended to ensure that

equipment is properly installed in order to maintain it in a condition.

It is assumed that everyone who will be associated with the equipment will be familiar with the contents

of that safety section, or this safety guide.

When electrical equipment is in operation, dangerous voltages will be present in certain parts of the

equipment (e.g. the input terminal). Failure to obverse warning notices, incorrect use, or improper use

may endanger personnel and equipment and course personal injury or physical damage.

Before working in the terminal strip area, the equipment must be isolated.

Proper and safe operation of the equipment depends on appropriate shipping and handling, proper

storage, installation and commissioning, and on careful operation, maintenance and servicing.

The operating manual for the equipment gives instructions for its installation, commissioning, and

operation. However, the manual cannot cover all conceivable circumstances or include detailed

information on all topics. In the event of questions or specific problem, do not take any action without

proper authorization. Contact the appropriate WB technical or sales office and request the necessary

information.

Standard application

1. Accuracy

Accurate degree is conformed to IEC688:1992

2. Safety

2.1 Overload capability

Overload capability is conformed to IEC688:1992

2.2 Isolation voltage

Can be endured testing voltage is conformed to Q/72085584-0.1-2004

2.3 Insulation impedance

The insulation impedance is no less than 20M Ohm, is conformed to Q/72085584-0.1-2004

3. Electromagnetic Capability

3.1 Electromagnetic field immunity test according to IEC 61000-4-3:1995

3.2 Power frequency magnetic field immunity test according to IEC 61000-4-8:1993

Product Description and Application

WBI417S41 converts AC input current into a load independent output signal true RMS (0)4-20mA. It

has adopted electromagnetic isolation principle for real time measurement of AC current from electric

net or electric circuit. It is good application for measurement of distorted current waveform.

The product has certain advantages of total galvanic isolation between input/output, high accuracy, low

drifting by temperature, and wide temperature bearable range, etc.

Product Dimensional Drawing (unit: mm)

Aperture Size: 4 mm

Product Terminal Identification Drawing

Input I

Auxiliary Power/Output Ground（GND）

Auxiliary Power（+E）

Output (Iz)

Non-identified terminal cannot be used

Mianyang Weibo Electronics Co.,Limited

No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China

Tel: 86-0816-2971265 Fax: 86-016-2281934

www.weiboelectronic.cn

wbwm@wbdz.cn

Mianyang Weibo Electronics Co.,Limited

No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China

Tel: 86-0816-2971265 Fax: 86-016-2281934

www.weiboelectronic.cn

wbwm@wbdz.cn

Key Technical Data:

1. Input: AC 0~0.5A; 0-1A; 0-2A; 0-3A; 0-5A; 0-8A; ( Optional)

2. Output: TRUE RMS 0-20mA or 4-20mA;

3. Accuracy class: 0.2

4. Frequency range: 25Hz～1kHz

5. Linear Range: 0~120% of nominal input

6. Responding Time: 300ms

7. Over Load Capacity: 20 times of nominal input, continuous 1 second; interval 300 seconds, repeat

5 times;

8. Auxiliary Power: +12VDC or +24VDC;

9. Load capacity: 6V;

10. Current consumption for static status: 24mA

11. Isolation Voltage (Input versus Output): ≥2500V DC; for 1 minute

12. Output Ripple: ＜4mV (root-mean-square value, output load is 250Ohm)

13. Drifting by Temperature: 200×10-6/℃，

14. Ambient Temperature: (Commercial grade) 0℃~50℃

(Industrial grade)-25℃～+70℃

15. Mounting : DIN Rail 35mm Mounting or screw mounting

Instruction of Installation and Use

1. The product has adopted structure compliance with EN50022; suitable for DIN rail mounting

NS35/7.5, NS35/15. Installation steps are as following (please reference to dimensional

drawing):

Step 1: Immobilize one side of product‘s mounting trough to the DIN mounting rail;

Step 2: Pull out the spring clasp;

Step 3: Place whole mounting trough to the DIN mounting rail properly;

Step 4: Release spring clasp to make sure the installation.

2. The product has calibrated before out of factory. After correctly wiring, it can be powered and

used immediately. But for further precise signal sampling, user needs to warm-up the product

for 3 minutes before use.

3. The auxiliary power requires isolation voltage≥2000VAC, DC current output ripple＜10mV.

4. Multiple transducers can share with one set auxiliary power together., and the wire shared

between the transducers and power should be short. It's better to connect each transducer to

the auxiliary power individually.

5. Wiring in terms of the terminal identification drawing strictly.

6. Basic testing method for accuracy

(1) According to the terminal definition table to connect the testing circuit;

(2) The testing must to be done by under the following conditions；

Auxiliary power: 24V±5％，ripple≤5mV

Ambient temperature: 25℃±5℃

Relative humidity: RH(45～75)％

Accuracy for Signal Power Source instrument: 0.05

Signal

Source

Transducer

Power Supply

250Ohm

+ V1

6 +

(3) Warming up the transducer for 3 minutes

(4) using output monitoring meter V1 to measuring the output of signal power source

instrument, set a any input value which is within the measuring range of the

transducer Ir (e.g. if input value is 5A, the output is 4mA～20mA, the expected

output value Iz should be calculated as:

Iz = (20mA－4mA)×Ir/5A＋4mA

Mianyang Weibo Electronics Co.,Limited

No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China

Tel: 86-0816-2971265 Fax: 86-016-2281934

www.weiboelectronic.cn

wbwm@wbdz.cn

Mianyang Weibo Electronics Co.,Limited

No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China

Tel: 86-0816-2971265 Fax: 86-016-2281934

www.weiboelectronic.cn

wbwm@wbdz.cn

(5) Using output monitoring meter V2 to measuring the output voltage Uo of the

transducer, the basic introduced errorγof the transducer should be calculated as:

γ= (Uo－Iz×250Ω)/[(20mA－4mA)×250Ω]×100

(6) Repeating step (4) (5), if calculated absolute value is less than the given accuracy

value of the transducer; it shows the transducer’s accurate grade is qualified.

Caution:

1. Pay attention to the auxiliary power information, especially the auxiliary power grade, and

polarity, other wise will damage the product.

2. pay attention to the wire connection; wrong terminal connection will cause malfunction of the

product and even damage the product;

3. Don’t dismantle the product, and carry with care to avoiding bump and fall of the product;

4. If the product has been using under the environment with strong magnetic field interference,

please pay attention to the shield of input wire, and the output signal wire should be as short

as possible. For product intensive installation, the space between each product should not

be smaller than 10mm.

5. Only use identified terminals.

6. There is no lightening strike prevention circuit design in this product. For out door and

hazardous environment using, please add protective alternatives.

7. This product uses fire prevent ABS crust, its temperature withstand is only limited as +85℃,

higher than this limitation will cause the product deformation. Please use and store carefully.

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