Figure 8: Transmitter Terminal Board And Grounding Screw - Honeywell SMV800 Quick Start Installation Manual

Figure 8: Transmitter Terminal Board and Grounding Screw

As shown in Figure 8, each transmitter has an internal terminal to
connect it to earth ground. Optionally, a ground terminal can be added to
the outside of the Electronics Housing.
Screw terminals 1, 2, 3, 5, 6, 7 & 8 only required for single input,
terminals 4 and 9 are not used.
Grounding the transmitter for proper operation is required, as doing so
tends to minimize the possible effects of noise on the output signal and
affords protection against lightning and static discharge. An optional
lightning terminal block can be installed in place of the non-lightning
terminal block for transmitters that will be installed in areas that are
highly susceptible to lightning strikes. As noted above, the Loop Power
wiring shield should only be connected to earth ground at the power
supply end.
Wiring must comply with local codes, regulations and
ordinances. Grounding may be required to meet various approval
body certification, for example CE conformity. Refer to Appendix A of
this document for details.
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December 2015 Quick Start Installation Guide