NRG USER MANUAL
SymphoniePLUS3 User Guide
SymphoniePLUS3_DataLogger_Manual
Rev. 17
[email protected] | Page 73
31 December 2018
Note that the field wiring panel mounts over the grounding stud and can be removed from the logger
without having to disconnect the sensor wires. This is particularly useful in the event a logger needs to be
swapped out for service.
Sensor Connection
Make sure that the logger ground wire is connected to the earth ground rod before connecting sensor
wires!
Pass sensor wires into the shelter box, either through the lower wire slot or through one of the upper
wire knockouts.
All wires coming down the tower and into the shelter box should be secured to the tower below
the shelter-box and then routed back up before entering the shelter-box to form a drip-loop.
Sensor wires should be stripped to expose only 5 mm (1/4 inch) of bare wire. Stripping off more
insulation could allow the wires to touch and cause an electrical short. If using standard NRG
Systems sensor cables, you may need to trim off some of the exposed wire.
NOTE: The nuts on the wiring terminals of the #200P and #40C sensors should only be tightened
until secure. Over tightening will snap the terminals off of the sensors and will not be covered
under warranty.
Wiring Sequence
Make sure that the logger ground wire is connected to the earth ground rod before connecting sensor
wires!