Total Ultrasonic Solution Pro-Wave Electronics Corp. 1 Scope The standard open type transducers provide high sensitivity, wider bandwidth, and excellent durability in wide temperature and humidity ranges and high stability in electrical and mechanical characteristics. Due to its free vibration character the open type transducers are very suitable for continual wave driving, such as Doppler motion detector. 2 Part Number 250ST16M / 250SR16M Open Type Air Ultrasonic Ceramic Transducer 3 Dimension As per Figure 1 4 Specification (rated at temperature 253, 45 to 60% RH, unless otherwise noted) Model Number: 250ST16M Items Specification Remarks 4-1 Center Frequency 25.0KHz 1.0KHz at 25KHz 0dB re 0.0002bar per 10Vrms at 30cm 4-2 Sound Pressure Level 112dB (min) 10Vrms sine wave input detail see attached Figure 2 4-3 Bandwidth 2.0KHz (min) -6dB 4-4 Capacitance 2600pF 20%, measured at 1KHz 4-5 Total Beam Angle 85 (TYP.) -6dB 4-6 Operation Temperature -30 to +70 4-7 Storage Temperature -40 to +80 Model Number: 250SR16M Items Specification Remarks 4-8 Center Frequency 25.0KHz 1.0KHz at 25KHz 0dB=1Volt/bar 4-9 Sensitivity -62dB (min) detail see attached Figure 3 4-10 Bandwidth 2.0KHz (min) -6dB 4-11 Capacitance 2600pF 20%, measured at 1KHz 4-12 Operation Temperature -30 to +70 4-13 Storage Temperature -40 to +80 1Total Ultrasonic Solution Pro-Wave Electronics Corp. 5 Environmental Characteristics 5-1 Overall echo sensitivity shall not change by more than 3dB in the temperature range of -30 to 70, at a relative humidity of 50% 5-2 Overall echo sensitivity shall not change by more than 3dB in the humidity range of 10% to 90% at the temperature of 25 5-3 Overall echo sensitivity shall be within 3dB of the specified values after the device is subjected to any or all of the belows 5-3-1 Operation at 90% relative humidity and 40 for 100 hours, followed by a normalization period of 24 hours at 30% and 25 5-3-2 Storage at -40 to + 80 for 24 hours followed by a normalization period of an hour at 25 5-3-3 Vibration at 10 to 55Hz, 1.5mm amplitude. 1 minute sweep. X, Y, Z, 3 each axis for 3 hours. 5-3-4 Shock: After impact of 50G is applied following. X, Y, Z, 3 axis /3 cycle / each direction. 6 Mechanical Characteristics Lead strength To pull longitudinally 1.0 kgf min. To push longitudinally 1.0 kgf min. 7 Warranty 7-1 Warranty period is one year after delivery 7-2 Defective transducers attributable to manufacturers responsibility shall be replaced for free, during the warranty period. However, following cases are out of the this replacement. 7-2-1 Unsuitable handling or misuse by user. 7-2-2 Modification or repair by user. 7-2-3 Any other cases not responsible for manufacturer such as natural calamity, accident, etc. This warranty covers only replacement. Any loss derived from failure or malfunction of the transducer, or cost to replace is excluded from this warranty. 2