RKI Instruments SD-1GH Operating Manual page 21

<Grounding>
Connect the detector to your grounding terminal with the external terminal
WARNING
• Before turning on the detector, do not forget to connect it to a grounding terminal.
• For stable operation of the detector and safety, it must be connected to a grounding terminal. Do
not connect the grounding wire to a gas pipe.
• The grounding must be made as D type grounding (below 100 Ω of grounding resistance).
• For the grounding wire, use cable lugs to safely connect it to a grounding terminal without
looseness or twist.
• Use ring terminals to connect the grounding terminal with the ground and use the grounding wire
with cross-sectional area of 4 mm
<Connecting to the Terminal Plate>
When cables are connected to the connectors, use the dedicated lever or a flathead screwdriver as shown
below.
CAUTION
The right tools must be used.
One wire can be connected to one wiring hole.
When the wire is inserted into the driver slot by mistake, it does not contact the conductive part. This
may cause defective electric conduction or heating.
When the wire is inserted under the spring by mistake, it does not contact the conductive part. This
may cause defective electric conduction or heating.
1. Push the lever with your
finger to lower the spring.
or more for the external grounding terminal.
2
2. While holding down the lever, insert the wire
into the (round) wiring hole until it reaches the
deepest point.
3. Once the lever is released, the wire is
secured.
4. Pull the wire gently to make sure it is secure.
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SD-1GH