Low Cost Analog Voltage Output Pulse Width Output Narrow Sensing Beam Self Contained Sensor Compact Design Input Voltage 11.8 - 30VDC Reverse Polarity Protection The LCU-40APW analog ultrasonic sensor is a self contained sensor in a PVC housing with 1" NPSM mounting threads. It is powered by 11.8 - 30VDC with reverse polarity protection. The LCU-40APW comes with analog voltage and pulse width outputs. The analog voltage output is calibrated at the factory and requires no adjustment in the field. The analog voltage is fixed at 250mV per inch resulting in 1V @ 4" and 10V @ 40". Distance to a target can be calculated with the following formula. d = VOUT ÷ 0.25 Where distance (d) is in inches and analog voltage output (VOUT) is in Volts. 1V @ 4" Analog Voltage Output The pulse width output is a direct measurement of the time of flight. Time of flight is the time required for sound to travel from the sensor to a target, reflect off the target and travel back to the sensor. When using the pulse width output distance to a target is 148µs per inch, with a constant air temperature of 20°C. Distance to a target can be calculated with the following formula. d = PWOUT ÷ 148 5V Pulse Width Output LCU-40APW Rev. 1 Where distance (d) is in inches and pulse width output (PWOUT) is in µs. When the LCU-40APW is used in applications with variations in air temperature the output readings can be compensated for the air temperature change. The distance changes by approximately 0.17% per °C. For example an increase in air temperature from 20°C to 30°C increases the speed of sound resulting in lower analog voltage and pulse width outputs. After determining the distance from the analog voltage or pulse width output the distance would need to be increased by 1.7% to compensate for the 10°C temperature increase. The LCU-40APW has a 4 position terminal block for power and signal connections. The LCU-40APW-M8 has a 4 pin M8 receptacle and the LCU-40APW-M12 has a 4 pin M12 receptacle for connecting a quick disconnect (QD) cable for power and signal connections. The LCU-40APW is designed to take advantage of today's PLC and computer analog input cards. The analog card chosen will determine the resolution of the system. The numerical values that are programmed into the PLC or computer will determine the zero and span. If a set point or set points are required in the application, please refer to Migatron's SPC-701, SPC-704, or M-1000 set point controller products. Both the SPC704 and M-1000 can also provide 24

Specifications: Operational Range: Power Input: Input Current: Ambient Temperature: Humidity: Reverse Polarity Protected PVC with glass filled epoxy resin sensing face Typical Beam Pattern Outputs: Analog Voltage Pulse Width Transducer Frequency: Response Time: Analog Voltage Pulse Width Analog Voltage Output Non-Adjustable 250mV per inch (1V at 4" & 10V at 40") Load 4.7K Ohms to infinity Short Circuit Protected Positive Pulse 5Vp with 90K Ohm load, Typical 3.3Vp with 6.8K Ohm load, Typical Distance from Sensor (") Beam Pattern Legend A - 4" x 4" Flat Target Perpendicular to Beam B - 3" Diameter...