Mianyang Weibo Electronics Co. Ltd
No.98 Youxian East Road, Youxian District, 621000 Mianyang, Sichuan, P. R. China.
Tel: +86-816-2971265 Fax: +86-816-2281934
www.wbsensor.com
5
5
Instruction of Installation and Use
1. Installation: DIN Mounting Rail structure, easy installation, suitable for type NS35/7.5,
NS35/15 or European type EN50022(standard lead rail).The installation steps are as below:
①
Hook the card slot of the sensor on the installation lead rail;
②
Pull the spring pin down;
③
Rotating sensor, make it mount on the installation lead rail;
④
Release the spring pin, make sure the sensor is fixed on the lead rail.
2. The sensor has been calibrated according to the
Product Standard
,before out of the factory.
After correct wiring, it can be powered and used immediately. The red indicator lights up after the
power is added. When it is measured accurately, please sampled after the preheating 3 minutes.
3. The sensor has no special requirements for auxiliary power. The ordinary 7800 series 3
terminal voltage regulator can be used for self-control, multiple sensors can share one auxiliary
power which's isolation voltage is required ≥AC2000V, DC output ripple
﹤
10mV.
4. Less than AC 10A of the current measurement can use ampere-turn input mode, at this point,
the resolution of the sensor is increased and measuring range is narrowed. Other technical index
are not affected.
5. Please pay attention to the positive direction of the input signal, According to the Connecting
Terminals Definition Drawing, when the direction of current specified in the diagram is perforated,
the "Iz" output is in phase with the input signal, otherwise the phase difference is 180 degrees.
6. Iz output is based on the design of maximum 250Ω standard load resistors. When the load
resistor R
L
is less than 100Ω, the reducing resistor Ro should be connected into the current-output
loop circuit of the sensor, so that the sum of the load resistance is between 100Ω and 250Ω.
Caution:
1.
Pay attention to the auxiliary power information, especially the auxiliary power grade,
and polarity, otherwise will damage the product.
R
L
1
3
Sensor
R
0
I
Z
User
System
