Mianyang Weibo Electronic WBI417S91 User manual

Designing, Manufacturing and Supplying WB Series Electric Isolated
Transducer and Digital Electrical Transducer since 1989
USER MANUAL
WBI417S91 AC current transducer
www.mywbdz.com
[email protected]
Tel: [phone]
Fax: [phone]
ISO9001 ISO14000 ISO18000
Certified

1
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
WBI417S91 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

2
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
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
WBI417S91 converts AC input current into a load independent output signal RMS
(0)4-20mA. It has adopted electromagnetic isolation principle for real time
measurement of AC current from electric net or electric circuit.
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)
9

3
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
Product Terminal Identification Drawing
Non-identified terminal cannot be used
Key Technical Data:
1. Input: AC 0~50A;
2. Output: RMS 0(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: 30 times of nominal input, 5 seconds;
8. Auxiliary Power: +12VDC/+24VDC
9. Current consumption for static status:6V
10. Isolation Voltage (Input/Output): ≥2500Vdc, for 1 minute
11. Output Ripple: ＜4mV (root-mean-square value, output load is 250Ohm)
12. Drifting by Temperature: 50×10-6/℃，
13. Ambient Temperature: (Commercial grade) 0℃~50℃
(Industrial grade)-25℃～+70℃
14. Mounting : DIN Rail 35mm Mounting or screw mounting
Auxiliary Power/Output Ground（GND）
Auxiliary Power（+E）
1
3
4
Input I
Output (Iz)

4
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
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

5
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
(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
(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
Sign
al
Sour
ce
Transducer
Power
V1
-
V2
6
3
1 3
+
+
-
-
R
250Ohm

6
Mianyang Weibo Electronics Co.,Limited
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.mywbdz.com [e-mail]
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.