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c. Connection of load cell and weighing transducer
Load cell adopts 9 wire plugs; end of weighing transducer is a hole. Definition for
foot signal takes fig. 8.4-3 for reference.
If four wire shield cable is use, Exc + and Sen+, Exc- and Sen- must be connected,
Connection for load cell to indicator and shield cable to ground must be reliable.
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Connecting wire mustn't be put in and out when indicator is being electrified;
avoiding static power makes damage to indicator or load cell.
As load cell and indicator are static sensitive equipments, measurement must be
▲
taken when they are used. Electric welding or other strong electric operations are
prohibited on scales. Action to prevent damage caused to load cell and indicator
from thunder must be taken in raining season. Safety for both operators and
weighing
d. Serial port communication wire connection
Weighing transducer has two communication ways RS232 and RS485. Both ways
can be used simultaneously when serial port transmits data and the data formats
are the same. Among transducer inside wires, just one can be chosen when serial
port receiving data. Two end wires are connected to one D type 9 wire socket.
Definition of foot signal is as fig. 8.4-4.
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Fig. 8.4-3
！Must not put in or out, welding with electric
！ Professional person connect and debug serial port
！Transducer connect to ground must be reliable
Page 5 of 17
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