15
CONNECTORS
Connecting load cells to the indicator
● OP-903 can connect with 4 weighing pads or 24 pcs of load cells of 350Ω at most
QUICK DISCONNECT AS SHOWN BELOW:
The number of weighing pads and load cells corresponds to the weighing modes. If the
pads or load cells are not connected properly the indicator will not function properly.
Please use the following table to connect your pads correctly.
INNER TERMINAL BLOCK CONNECTION DIAGRAM
Weighing Pad # Load Cell Connection
Weighing Mode
1
LFW
[Mode 1] Setting “1”
2
LFW, RFW
[Mode 2] Setting “2”
3
LFW, LRW, RRW
[Mode 3] Setting “3”
4
LFW, RFW, LRW, RRW
[Mode 4] Setting “4”
DB9 Connection (9 pin Serial Connector)
RS232: DB9 SERIAL CONNECTOR PINOUT
Pin function and definition are bellow:
DB9 Pin
Definition
Function
2
TXT
Transmit Data
3
RXD
Receive Data
5
GND
Ground Interface
