Mettler Toledo IND780 Manual De Instalación página 52

IND780 Installation Manual
In addition, the maximum cable distance must be reviewed. Table 2-4 provides
recommended maximum cable lengths based on TSR and cable gauge.
87 (4-350 Ω cells)
43 (8-350 Ω cells)
Figure 2-37 shows wiring definitions for the analog load cell connector. 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.
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).
Figure 2-38 shows wiring definitions for the analog load cell discrete output
connector.
2-24
Table 2-4: Recommended Maximum Cable Lengths
24 Gauge
TSR (Ohms)
(meters/feet)
350 243/800
60/200
30/100
Figure 2-37: Load Cell Connections
Note – The voltage source
must be a Class 2
marked or a Limited
Power Source (LPS)-
compliant power supply
Figure 2-38: Analog Load Cell Discrete Output Connector
20 Gauge 16 Gauge
(meters/feet) (meters/feet)
610/2000 1219/4000
182/600 304/1000
91/300 152/500
This illustration shows
the connectors pointing
upward.