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WB9128-1 Power Transducer (RS 485 Interface)
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 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
WB9128-1 adopts special made isolation module, professional MCU controller and high speed data synchronizing
sampling and processing technologies to isolate and convert active power of three-phase four-wired electric system
or 3 phase 3 wire system into RS485 bus and load independent output DC average current signal 4-20mA or
0-20mA and dc voltage signal 0-5V or 1-5V; It has certain advantages of input/output isolation, high
performance, low drifting by temperature, and low power consuming, etc.
Product Dimensional Drawing (unit: mm)
Mianyang Weibo Electronics Co.,Ltd
www.wb-my.com
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