23/06/2014 www.crouzet.com LN plug-in emptying function LN Part number 84870308 Relay for controlling level of conductive liquids Regulation of two levels : - minimum - maximum Empty function Plug in (8 or 11 pins) Sensitivity adjustable from 5 k to 100 k Part numbers 84 870 308 Type Supply voltage Base LN 120 V AC 11-pin Specifications Supply voltage Un Operating range Max. absorbed power Adjustable sensitivity Measurement accuracy (at maximum sensitivity) Electrode voltage (max) Electrode current (maximum) Maximum cable capacity Response time high level Response time low level Output relay (according to AC1 resistive load) Galvanic isolation via transformer (4 kV, 8 mm creepage distance) Isolation of contacts and electrodes from power supply Operating temperature range (C) Storage temperature range (C) Weight (g) 230 V, 110 V, 48 V, 24 V AC, 50/60 Hz 0,85 1,15 x Un 3 VA 5 k100 k 0 +30 % 24 V AC (50/60 Hz) 1 mA (50/60 Hz) 10 nF 300 ms 500 ms 1 AgCdO switch 8 A AC max. Class II 2,5 kV AC -20 +60 -30 +70 140 Principles Operating principle Control of maximum and/or minimum levels of conductive liquids (tap water, sea water, waste water, chemical solutions, coffee etc). The principle is based on measurement of the apparent resistance of the liquid between two submerged probes. When this value is lower than the preset threshold on the unit front face, the output relay changes state. To avoid electrolytic phenomena, an AC current funs across the probes. Applications found in environmental, chemical industries and food technology etc. Regulation of two levels : Minimum / Maximum The output relay changes state when the level of liquid reaches the maximum electrode, with the minimum electrode submerged. It returns to its initial state when the minimum probe is no longer in contact with the liquid. Note The probe wire (max length 100 metres) does not have to be screened, but avoid mounting it in parallel with the power supply wires. A screened wire can be used, with the screening connected to the common. No Legend Max. level Min. level Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 www.crouzet.com Output relay Down Unit power-up Controlled level Empty function Dimensions (mm) LN Dimensions (mm) LN connector sockets 8-pin : 25 622 129 11-pin : 25 622 078 TRADOS Empty Field Connections LN Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 23/06/2014 No www.crouzet.com Legend Input Common LN 11-pin LN 8-pin Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Crouzet: 84870308