Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: 86-816-2971265 Fax: 86-816-2281934
6
6
(3) Warming up the transducer for 3 minutes
(4) Use V1 and V3 for monitoring, set one set of
any input value which is within
the measuring range of the transducer Ur (line voltage), Ir, COSφ, (for e.g. if
input value is 100V and 5A, the output is 4-20mA, the expected output value Iz
should be calculated as:
Iz =
（
20mA
－
4mA)×│(Ur×Ir×COSφ)/(100V×5A)│
＋
4mA
(5) Using output monitoring meter V2 to measuring the output voltage V0 of the
transducer, the basic introduced error
γ
of the transducer should be calculated
as:
γ= (Vo－Iz×250Ω)/[(20mA－4mA)×250Ω]×100
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:
Caution:
Caution:
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.
Warranty:
Warranty:
Warranty:
Warranty:
(a) Product Warranty: Seller warrants that upon Delivery the Product to be supplied by
Weibo shall be completely new and shall comply in all respects with the Technical
