DRAWING NO. 10 — USE OF EXTERNAL SURGE SUPPRESSORS
Consult manufacturer of surge suppressor for installation and wiring specifications
External Surge Protection Device (Typ.)
(BY OTHERS)
IMPORTANT:
Mount Suppressor within
two feet of SMARTVALVE
120/240 VAC
4-20mA Residual Input Signal
4-20mA Flow Input Signal
Local Ground with Grounding Rod
To Main Panel Electrical Ground
IMPORTANT:
Consult the manufacturer of the transient voltage suppression device for proper wiring of inputs and outputs.
Analog and digital output signals should also be protected.
NOTES:
1. Surge protection devices must be grounded locally with a grounding rod and also at the main panel electrical ground.
2. Surge protection devices should clamp the 4-20mA signal lines at 12 Volts maximum.
SMARTVALVE
27
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