LX3V Series PLC
1 WECON Technology Co., Ltd.
1. Weighing module principle
Metal material subtle changes, when the metal material by tension, the electrical impedance
increases. Conversely, when compressed, the metal impedance decreases, strain gages made by this
method are called weighing modules. This type of device converts the pressure in a physical phenomenon
into electrical signal output, so it often used in the occasion of load, tension and pressure conversion.
2. Introduction
1) Thanks for your purchasing WECON LX3V-2WT expansion module, the maximum resolution is
24-bit, using 4 or 6 wires weighting sensor;
2) Please read this manual carefully before attempting to operate, this manual is only written for
LX3V-2WT;
3) Using FROM/TO command to read/write data by LX3X main unit;
2.1 Specification
Table 2-1
Item
Description
Channel
Double channel
A/D converter
24 bitΔˉ∑ A/D
Resolution
24bit (signed)
Speed
7.5/10/25/50/60/150/300Hz available
Polarity
Unipolar and bipolar
Non-linearity
≤0.01% full scale(25℃)
Zero drift
≤0.2μV/℃
Gain drift
≤10ppm/℃
Excitation current
5V,load impedance≥200Ω
Sensor sensitivity
1mV/V-15mV/V
Isolation
Transformer (power supply) and the optical coupler (signal)
Lamp
Power supply lamp (24V), communication lamp(COM)
Power supply
24V±20% 2VA
Operating temperature
0~60℃
Storage temperature
-20~80℃
Dimension
90(L)x58(W)x80(H) mm