Performing Loop Test - Simtronics GD1 MK3 Operating Manual

The shield of the system cable should be connected to instrument earth in the central
control module, and is normally not terminated at the detector. Exception: If extra RFI
protection is required, and the installations grounding principles/regulations allows it, the
shield is terminated to local ground via the internal earth point at the detector instead.
Internal earth point
2.5.4.

Performing loop test

After powering up the GD1 a test can be performed of the 4-20 mA wiring. The loop test is
performed by the procedure below.
# Description
On the transmitter, connect the Ethernet adapter
to the Junction Box terminals 3 - 6.
1
GD1
Illustration
Page 17 of 76 850-816926-EN R06