Hach SC4200c Instructions D'utilisation page 10

N O T I C E
2 2
Use cabling with a wire gauge of 0.08 to 1.5 mm (28 to 16 AWG) and an insulation rating of 300 VAC or higher.
2 2
Do not use wire gauge other than 0.08 to 1.5 mm (28 to 16 AWG), unless wires can be isolated
from mains power and relay circuits.
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