| Description de l'article | Conductivity controller 3-POSITION stepping, min-, max-alarm, 4-20MA output with operating unit urb 50 / level switch type LRR 1-53 GESTRA spectormodule touch continuous conductivity controller with min and max alarm input: 1 input for conductivity transmitter LRGT (4-20 MA) output: 1 actual value 4-20MA 2 volt-free change-over contacts for MIN/MAX alarm 2 volt-free change-over contacts for valve control incl. 1 separate operating & display unit type urb 50 with colour touch panel supply voltage: 24 V DC, 13 W |