GD1 Page 17 of 76 850-816926-EN R06
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.
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.
On the transmitter, connect the Ethernet adapter
to the Junction Box terminals 3 - 6.
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