SM150T User Manual 1.0
Operation
22
Ungrounded system
In the example shown in Figure 2 both the logger and the power supply are
not grounded, so a current loop can exist between the sensor and the mains
power source, allowing noise to be injected into readings, and increasing the
risk of galvanic corrosion to the M12 connector on the SM150T.
Figure 2 This diagrams shows that if the logger is not well grounded then a
potential ground loop can exist between the sensor and the power supply and/or
mains power. There is also the risk of galvanic corrosion to buried M12 connectors
on the sensor and cable.
