OLM Series High performance optical liquid level switches FEATURES · Solid state technology, no moving parts · TTL compatible or transistor output · 10 mA or 800 mA output current · Stainless steel housing · High media compatibility · Fast response, electrically robust WETTED MATERIALS Tip: Housing: Polysulphone Stainless steel 304 ELECTRICAL CONNECTION SPECIFICATIONS Maximum ratings Supply voltage OLM01T... OLM80U... Supply current OLM01T... OLM80U... Output current OLM01T...* OLM80U... Operating temperature range OLM...2... OLM...4... Pressure range Protection class 5...12 V 10...45 V Red 1 White 4 Black 3 15 mA 25 mA 10 mA 800 mA +VS Output GND -25 to 80°C -40 to 125°C 25 bar up to IP 68 * 10 mA sink current, source current depends on VS and RL E / 11636 / B 1/3 www.first-sensor.com www.sensortechnics.com OLM Series High performance optical liquid level switches PERFORMANCE CHARACTERISTICS Characteristics Min. Typ. Repeatability Max. Unit ±1 Hysteresis (depending on liquid) mm 1 Response time rising liquid Response time falling liquid (ethanol) 50 µs 1 s ELECTRICAL CONNECTION (cont.) Assigment +VS N/C GND Output Electrical Termination M12 x 1 Cable, 3 m (pin) (lead colour) 1 Red 2 3 Black 4 White TTL compatible (high in air) Red TTL compatible (low in air) +VS Red +VS White Output Black GND 4.7 White Black Output GND Push-Pull (current sinking and sourcing) E / 11636 / B Red +VS White Output Black GND RL RL 2/3 www.first-sensor.com www.sensortechnics.com OLM Series High performance optical liquid level switches OUTLINE DRAWING G 1/2 (BSP) or 1/2 NPT thread M12 connector 24 22.4 M12 connector 57.4 72.9 G 1/2 (BSP) or 1/2 NPT thread 24 3 38 53.50 3-core 22 AWG wire mass: approx. 115 g dimensions in mm Note: Do not mount the sensor with prism pointing downwards. The prism should be at least 10 mm away from any infrared-reflecting surface. ORDERING INFORMATION Output Series Current Options OLM Type Tip material Housing type Temperature Termination P 2 D Function 01T 10 mA TTL compatible 0 Low i n ai r 80U 800 mA Push-Pull 1 High i n ai r Polysulphone S G 1/2 (BSP) T 1/2 NPT -25...80 °C M12 x 1 (IP67) 4* -40...125 °C M Cable, 3m (IP67) * not available for ...01T0... versions Example: OLM 80U 0 P S 2 D First Sensor reserves the right to make changes to any products herein. First Sensor does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11636 / B 3/3 www.first-sensor.com www.sensortechnics.com