EN-4 7000 SERIES INDICATORS
Recommended Maximum Cable Lengths
TSR (Ohms)
24 Gauge
(meters/feet)
20 Gauge (meters/feet)
16 Gauge (meters/feet)
350
243/800
610/2000
1219/4000
87 (4-350
cells)
60/200
182/600
304/1000
43 (8-350
cells)
30/100
91/300
152/500
35 (10-350
cells)
24/80
60/200
120/400
The T72XW terminal is designed to support both 2mV/V and 3mV/V load cells from the same circuitry. A load cell output
rating selection jumper is not required.
The figure below shows the terminal definitions for the analog load cell terminal strip. Note that when using four-wire load cells,
jumpers must be placed between the +Excitation and +Sense terminals and between the
Excitation and
Sense terminals
Load Cell Termination
Note:
For the standard four-wire cable: If an increase in load results in a decrease in weight display, reverse the signal wires
(+SIG and
SIG)
2.5.3 COM1 Serial Port Connections
The COM1 port provides an RS-232 connection for external serial devices.. Make the connections as necessary.
Terminal
Signal
TxD
Transmit RS-232
RxD
Receive RS-232
Gnd
Logic Ground
COM1 Port Signals