I am using a SNAP PAC Rack with a load cell module (SNAP-AILC) to monitor the weight on a very large outdoor conveyor scale. The unit we are replacing has a “lightning strike disconnect” puck in between the 4-20mA transmitter and the old input module connected to the controller. This is necessary because the system is a very large metal plant that is outside during storms and has a history of being struck by lightning.
We are eliminating the 4-20mA transmitter and using a 6 lead connection to connect directly to the SNAP-AILC module. What if anything can we use for lightning strike protection between the loadcell and the module (or is this already built into the module itself)?