Model Description single-point conductive level sensors (electrodes) multi-point conductive level sensor with up to 4 electrodes single-point 2-electrode conductive level sensor with built-in temp. sensor single-point level switches with magnetic float single- and multi-point all-plastic multi-point level transmitter level switches level switch with magnetic float with up to 5 magnetic floats with up to 5 magnetic floats single-point optical level switch Medium Type liquids with conductivity > 20 μS/cm liquids with conductivity > 20 μS/cm liquids with conductivity > 20 μS/cm liquids with density > 0.5 g/cm3 liquids with density > 0.45 g/cm3 liquids with density > 0.5 g/cm3 liquids with density > 0.65 g/cm3 low-viscose liquids Sensor Type electrode / reference resistance electrode / reference resistance level: electrode / reference magnetic float resistance temperature: RTD, T/C level: magnetic float temperature: RTD, thermostat level: magnetic float temperature: RTD magnetic float level: any (side mounting) temperature: medium level: 50...5000 mm temperature: medium level: 50...4000 mm temperature: medium low-cost 2-point level controller programmable 2- / 3-point level controller low-cost 2-point level controller contact: float switch resistive: conductivity cell resistive: conductivity cell contact: float switch resistive: conductivity cell contact: float switch Contact Range Resistive Range relay 5A/250VAC; contact: NO/NC up to 2 / 3 relays 5A/250VAC; relay 5A/250VAC; contact: NO/NC contact: NO/NC Output Indication LEDs for power ON, and for output state LEDs for power ON, for reached levels, and for output state 2 relays 5A/250VAC; contact: NO LEDs for power ON, and for output state Control Algorithm Operation Modes supply (filling) or various, drainage (emptying) control selectable with jumpers supply (filling) or none drainage (emptying) control threshold: trimpots threshold: potentiometer plug-in terminals plug-in terminals screw terminals suitable for conductive or non-conductive liquids; operation mode must be specified in customer order; for vessel filling or emptying via pumps, valves suitable for various conductive-liquid level control applications suitable for conductive or non-conductive liquids; operation mode must be specified in customer order; for vessel filling or emptying via pumps, valves Medium Temp. Medium / Output none Isolation electrode resistance electrode resistance electrode resistance max. 2A/230VAC/50W; level: max. 2A/230VAC/50W; level: max. 2A/230VAC/50W; 2-wire 4...20 mA contact: NO, NC, or NO/NC contact: NO, NC, or NO/NC contact: NO, NC, or NO/NC alarm contacts: 2x NO temperature: RTD, temperature: RTD thermostat 1.6A/250VAC relay 5A/250VAC, transistor PNP/NPN or MOS gate; contact: NO or NC option: vertical adjustment option: vertical adjustment option: vertical adjustment Power Supply Power Supply Wetted Parts stainless steel, PTFE, POM stainless steel, PTFE stainless steel, plastic stainless steel, plastic stainless steel, plastic stainless steel stainless steel, polysulphone plug-in terminals Ambient Temp. suitable for isolating float level switches operating in normal and hazardous areas; provides 2.5 V sensor supply voltage; 1- and 2-level versions screws and nuts, cable, or screw terminals screw terminals screws and nuts, cable cable or screw terminals cable, screw terminals, or connector screw terminals screw terminals low- and high-pressure open electrodes, variants with protection head, submersible variant 1 reference and up to 3 partially insulated changeable rods may be ordered mounted on one header suitable for washing machines thanks to rounded electrode tips straight and 90°-angled switches with various cable types; submersible variant suitable for applications, where double protection (temp. and level) is needed: gear boxes, pumps, etc. suitable for aggresive media, where stainless steel is not applicable local indicator TI200 available suitable for many non-conductive liquids: fuels, oils, milk, etc.