Lightning Protection - Honeywell SmartLine ST 700 User Manual

12.7.5 Lightning Protection

If your transmitter includes the optional lightning protection, connect a wire from the Earth Ground
Clamp (see Figure 55) to Earth Ground to make the protection effective. Use a size 8 AWG or
2
(8.37mm ) bare or green covered wire for this connection.
ST 700 SmartLine Pressure Transmitters User's Manual
Revision 12 Page 149