Isolex8TM Liquid Level Sensors Models Available ISOLEX8 Liquid Level Sensor Product Features ■ Liquid sensing by detection of free ions ■ High immunity to probe deposits ■ Full galvanic isolation ■ 16 Amp changeover relay output ■ Time delay to avoid nuisance switching ■ Onboard LED or optional remote LED The Tempatron Isolex8TM liquid level sensors control the levels of conductive liquids by using advanced solid state ferromagnetic technology to sense the presence of liquid by detecting the free ions within it. They are ideal for applications where significant build up of deposit on the probes can occur. They are available in 110Vac and 230Vac versions (or 24Vdc to special order) with a 16 Amp changeover relay output. The sensors essentially pass no measurable current through the liquid and provide full galvanic isolation between the supply and the inputs and outputs. These chassis mounting modules measure only 60mm x 30mm, have an integral 5 second delay to avoid nuisance switching, and require two mutually isolated metallic probes, one of which can be the earthed container itself. An onboard (or optional remote) LED indicates relay status and diagnostic conditions. For detection and control of liquid levels in conductive liquids Connections Load Connection RCCB Protected Power Supply 1 Wire Connection Probe "T 2 Wire Connection XTLED The unit is set for onboard LED indication To select remote LED indication ‘spin cut' the copper pad marked LED OFF to disconnect the onboard LED. Connect the remote LED to the 2-pin XTLED Molex header (ensuring LED cathode is connected to pin K). Link X Leave in place for normally closed (N/C) relay operation (relay energises whilst the probes are out of liquid). Cut out for normally open (N/O) relay operation (relay energises whilst the probes are in liquid). Probe Wiring Diagnostic Test Ensure that the probes (or sensing probe in earthed tank configurations) are not in contact with the liquid. Switch on the power supply to the unit. The LED will illuminate and blink for approximately 5 seconds if the length/capacitance of the probe wiring is within acceptable limits.

Email: [email protected] Ordering information Model Code Description ISOLEX8 Liquid Level Sensor Auxiliary Power Code Description Power Supply Voltages: Supply Voltage Variation: Tempatron: Eltime House, Hall Road, Maldon, Essex, CM9 4NF UK. Tempatron Industrial Controls is a division of Eltime Ltd. © Eltime Ltd. Tempatron Isolex8 Liquid Level Sensors 05/2011 Probe Circuit Power: - Single pole changeover relay contact Re-activate Delay: De-activate Delay: Probe Type: - 2 x metallic probes, insulated from tank wall, nominal surface area 1cm2 Probe Connection: - 2 wire earthed or 1 wire double...