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06 December 2004
MAN0090-05
4
WIRING
5
INSTALLATION AND SAFETY
Special care must be taken with grounded junction sensors to avoid applying a voltage potential to the
thermocouple junction.
Extension wire of the proper Thermocouple type must be used. Keep total wire resistance less than
100
Ω
to maintain rated accuracy.
Route extension wiring in its own conduit. Shielded, twisted pair extension wiring offers best noise
immunity.
If shielded wiring is used, a good earth ground connection is critical.
Recommended wire size for terminal strip is 24 AWG.
Adhere to the following safety precautions whenever any type of connection is made to the module.
Connect the green safety (earth) ground first before making any other connections.
When connecting to electric circuits or pulse-initiating equipment, open their related breakers. Do not
make connections to live power lines.
Make connections to the module first; then connect to the circuit to be monitored.
