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< 5. Wiring >
5-6
IM 11M12D01-01E
Notice when closing the cover of the detector.
CAUTION
• Before opening the detector cover, loosen the lock screw. If the screw is not loosened first, the
screw will damage the cover, and the terminal box will require replacement.
When opening and closing the cover, remove any sand particles or dust to avoid gouging the
thread.
• After screwing the cover in the detector body, secure it with the lock screw.
Lock Screw
Detector Cover
F5-5E.ai
Figure 5.5
5.2.3 Power and Ground Wiring
Connect the power wiring to the L and N terminals in the averaging converter. Use wires with a size
of 2 mm
2
(14 AWG) or larger. If a cable gland is not installed on the wiring hole of the averaging
converter, use a wire with an outside diameter of 17 mm or smaller. If installed, use a wire with an
outside diameter of 6 to 12 mm. A lock washer must be installed.
Connect the ground wiring to the protective ground terminal in the averaging converter or the external
ground terminal on the side of the case. Run the ground wiring so the ground resistance is 100 Ω or
less (equivalent to Class D grounding).
Make sure that the jumper plate is connected between the G terminal and the protective ground
terminal.
Grounding to the ground terminal
on the Averaging converter case
Converter Case
FG Terminal
Lock Washer
Crimp Terminal
F5-6E.ai
Figure 5.6 Grounding to the Ground Terminal
CAUTION
Operating the instrument with the jumper plate disconnected may result in poor resistance to noise.
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