Mianyang Weibo Electronic WB Series User manual

Designing, Manufacturing and Supplying WB Series Electric Isolated Sensor and Digital
Electrical Transducer since 1989
USER MANUAL
WBV344U01-S DC Voltage Transducer
www.wbsensor.com
[email protected]
Technical Service: 86 816 2278271
Quality Complain: 86 816 2278273
Fax Line: 86 816 2281934
ISO9001 ISO14000 GB/T2800 CE
Certified
Quality Warranty
Any quality problem found in WB series products, we offer
Three years free charge of repair the products, and six months guaranteed free charge of change and return the
products.

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
2
2
WBV344U01-S DC Voltage 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 would be associated with the equipment should 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 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 RF-Electromagnetic field immunity test according to EN61000-6-2:2005,
EN61000-6-4:2001
3.2 Power frequency magnetic field immunity test according to EN61000-6-2:2005,
EN61000-6-4:2001
3.3 Electrostatic discharge immunity test according to EN61000-6-2:2005,
EN61000-6-4:2001
3.4 Surge immunity test according to EN61000-6-2:2005, EN61000-6-4:2001
3.5 Electrical fast transient/burst immunity test according to EN61000-6-2:2005,
EN61000-6-4:2001
3.6 Conducted disturbance voltage according to EN61000-6-2:2005, EN61000-6-4:2001

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
3
3
3.7 RF continuous conducted immunity according to EN61000-6-2:2005, EN61000-6-4:2001
3.8 Radiated Electromagnetic disturbance according to EN61000-6-2:2005,
EN61000-6-4:2001
3.9 Voltage dips/interruptions immunity according to EN61000-6-2:2005,
EN61000-6-4:2001
Product Description and Application
WBV344U01-S converts DC input pure voltage into a load independent output signal DC
0~20mA or 4-20mA. It has adopted modulation-demodulation isolation principle and average
measurement method for real time measurement of DC voltage 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.
Function realization schematic drawing
Product Dimensional Drawing (unit: mm)
+E G
In
3
1/4
12
11
Out
10 11
+
+
_
_

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
4
4
Product Terminal Identification Drawing
Terminal definition table
1/4 U-
3 U+
10 +E
11 GND
12 Iz
Key Technical Data:
1. Input: DC 0-10mV…0-1000V;
2. Output: DC 0-20mA/4-20mA
3. Accuracy class: 0.5
4. Input Impedance (R): when Vx＞1V,Ri＝Vx×10kΩ/V；
When Vx≤1V,Ri＞1MΩ；
5. Linear Range:0-120% of nominal input
6. Responding Time: 150ms
7. Over Load Capacity: 2 times of nominal input, continuous;
8. Maximum Load (Output voltage 10V): 500Ω;
9. Auxiliary Power:+12V/+24V
10. Current consumption for static status:17mA
11. Isolation Voltage(Input/output): 2500Vdc, for 1 minute
12. Output Ripple: ＜10mV
13. Drifting by Temperature: ( 0℃～+50℃) 2.5×10-4/℃;
14. Ambient Temperature: -10℃～+50℃
15. Mounting : DIN Rail 35mm Mounting
DC Current output（Iz）
Auxiliary power and output ground （GND）
＞600V DC voltage input（U－）
9
8
7
Auxiliary powe
r
（+E）
1
1
DC voltage input（U+）
10
3
2
1
6
5
4
Non identified terminals can’t be used
12
≤600V DC voltage input（U－）

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
5
5
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.
a) The auxiliary power requires isolation voltage≥2000VAC, DC current output ripple
＜10mV, and multiple converters can share with one set auxiliary power together.
b) When measuring dc voltage exceeds 1000volts, the circuit needs adding a resistor
to divide the input dc voltage. The resistor is provided by Weibo Electronic, and
only for each type of transducers special use only.
C) When measuring DC voltage less than 600V, uses terminals 3 and 1 for connection;
when measuring DC voltage bigger than 600V, uses terminals 3 and 4 for connection
3. 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±1％，ripple≤5mV
Ambient temperature: 25℃±2℃
Relative humidity: RH(45～75)％
Accuracy for Signal Power Source instrument: 0.05
3
Transducer
VX 4
Resistor

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
6
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 any input value which is within the measuring range of
the transducer Vr.(e.g. if input range is 100V, the output is 4-20mA ). the
expected output value Iz should be calculated as:
Iz = (20mA－4mA)×Vr/100V＋4mA
(5) Using output monitoring meter V2 to measuring the output voltage V0 of the
transducer, the basic introduced errorγof the transducer should be calculated
as:
γ= (Vo－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
Signal
Power
Source
Transducer
V1V2
12
11
++
-
-
Auxiliary Power
10
+E
250Ω
GND
3
1

Mianyang Weibo Electronic Co.,Ltd.
No.98 Youxian East Road, Youxian District, Mianyang City, P.R. China
Tel: [phone] Fax: [phone]
www.wbsensor.com [e-mail]
7
7
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.
8. This product can’t be used to measure the pulse DC voltage signal, otherwise there will
be more errors or no output.
Product Input-Output characteristic curve
Input (%)
0 100
4mA～20mA Input-Output characteristic curve
20
23.2
120
Output (mA)
4