DATA SHEET Liquid Level Switches Optomax Digital Series FEATURES Liquid level switches that can detect almost any liquid type; oil or water based Choice of material; Trogamid(R) or Polysulfone Choice of threads and terminal connections Housing/ Mounting Output Type / Logic BENEFITS Supply Voltage Output Current Temp OUTPUT VALUES Low power Low cost Output Voltage2 (Vout): Output High Output Low lout = 100mA Vout = Vs - 1V max Vout = 0V + 0.5V max PWM Duty cycle in air Duty cycle in liquid Frequency 25% 10% 75% 10% 2kHz 10% Compact design TECHNICAL SPECIFICATIONS Supply voltage (Vs) Supply current (ls) Output sink and source current (lout) 4.5VDC to 15.4VDC 2.5mA max. (Vs = 15.4VDC) Operating temperatures Standard: -25C to +80C Extended: -40C to +125C Storage temperatures Standard: -30C to +85C Extended: -40C to +125C Housing material Trogamid(R) or Polysulfone1 Sensor termination 24AWG, 250mm PTFE wires, 8mm tinned 100mA 1) NOTES 2) Other sensor options available on request, email: technical@sstsensing.com Need help? Ask the expert Tel: + 44 (0)1236 459 020 and ask for "Technical" Before use check that the fluid in which you wish to use these devices is compatible either with Trogamid(R) or Polysulfone. Voltages applicable to output value stated. OUTLINE DRAWING HOUSING SPECIFICATIONS All dimensions shown in mm. Tolerances = 1mm. Housing Series 5x0 2x0 6x0 7x0 Thread M10x1 M12x1x8g with hex nut1 1/2" SAE with O-ring1 1/4" NPT2 Pressure3 20 bar LLx5x0 Series Tightening Torque LLx2x0 Series 7 bar maximum 1.5 Nm / 13.26 in-lbs maximum ELECTRICAL INTERFACE LLx6x0 Series LLx7x0 Series NOTES 1) 2) 3) Hex nut and O-ring sold separately; email: technical@sstsensing.com for details. NPT version can be sealed with PTFE tape. When correctly sealed. Wire Designation Red Vs Green Output Blue 0V CIRCUIT DIAGRAMS In order to suit any application, these sensors have been designed with various output circuit configurations. CAUTION: Take care when connecting loads. The minimum load impedance should not exceed Vs/max output current. Note: Shorting the output to Vs or 0V will result in irreparable damage to the sensor. ORDER INFORMATION Generate your specific part number using the convention shown opposite. Use only those letters and numbers that correspond to the sensor and output options you require -- omit those you do not. Sensor mounted from inside vessel L L X 5 X 0 D Sensor mounted from outside vessel 3 L X L X X X 0 D 3 S H Housing Material Operating Temp. Output Logic Housing Material Housing Type Operating Temp. Output Logic C Polysulfone 0 -25 C to +80C Blank Output High in air C Polysulfone 2 2x0 SH series M12x1 0 -25 C to +80C Blank Output High in air T Trogamid(R) 1 -40 C to +125C L Output Low in air T Trogamid(R) 6 6x0 SH series 1/2" SAE 1 -40 C to +125C L Output Low in air P PWM output 7 7x0 SH series 1/4" NPT Notes: X 5x0 series sensors are mounted internally 2x0, 6x0 & 7x0 series sensors are mounted externally SH suffix applicable to 2x0, 6x0 & 7x0 series sensors only; omit from 5x0 series sensor part number Please contact SST Sensing for details; email: technical@sstsensing.com P PWM output CAUTION INFORMATION Do not exceed maximum ratings and ensure sensor(s) are operated in accordance with their requirements. Carefully follow all wiring instructions. Incorrect wiring can cause permanent damage to the device. SST Sensing Ltd recommend using alcohol based cleaning agents. Do NOT use chlorinated solvents such as tricholerthane as these are likely to attack the sensor material. Failure to comply with these instructions may result in product damage. As customer applications are outside of SST Sensing Ltd.'s control, the information provided is given without legal responsibility. Customers should test under their own conditions to ensure that the equipment is suitable for their intended application. Before use, check that the fluid in which you wish to use these devices is compatible with Polysulfone or Trogamid(R). For technical assistance or advice, please email: technical@sstsensing.com General Note: SST Sensing Ltd. reserves the right to make changes to product specifications without notice or liability. All information is subject to SST Sensing Ltd.'s own data and considered accurate at time of going to print. DS-0032 REV 12 (c) 2016 SST SENSING LTD. 5 H A GMI LL C RESE NT , SHAW HEA D IN DU ST RIA L E ST AT E, C OA TB RI D GE, U K M L5 4 NS w w w.ssts ensi ng .com | e: sal es@ss tse nsin g.co m | t : + 44 ( 0 )12 36 4 5902 0 | f: +4 4 (0 ) 123 6 459 02 6