KJT Ultrasonic sensors use the characteristics of sound waves to provide a contactless and accurate detection solution for detecting the status and distance of objects. By emitting mechanical sound waves with high frequency, the sensor receives the sound waves reflected back from the object. By calculating the time or energy between transmitting and receiving the sound waves, the precise distance or status of the target object is obtained. Ultrasonic sensors are different from ordinary proximity switches and photoelectric sensors. Compared with inductive or capacitive proximity switches, its detection distance is longer. Compared with photoelectric sensors, it can be used in harsher environments and is not affected by the color of the target, airborne dust, water mist, etc. Suitable for detecting different
| Product Paramenters |
| model | KJT-M18DB |
| examination range | 30-70mm |
| The scope of work | Paper with a weight of 100-2000g/m2, metal composite plates and films greater than 5mm thick; metal plates and adhesive films greater than 2mm thick; wafers, PCB circuit boards |
| LED green light | Indication: Leaflet detected |
| LED yellow light | Instructions: No target (air) |
| LED red light | Indication: Double sheet detected |
| Operating Voltage | 10-30V DC |
| No-load current | ≤30mA |
| Working current | 3×200mA |
| Overload protection | 200mA, red light and green light flashing at the same time |
| Voltage drop | ≤2V |
| response delay | <300μs-2.25ms,depends on material |
| Pulse Width | ≥100ms |
| impedance | ≥4kΩ |
| Material | Copper sleeve, nickel plated, plastic fittings, transducer: glass filled epoxy |
| Protection level | IP67 |
| Connection Type | 2m，PVC Cable 0.14mm2 |
| ambient temperature | 0℃~+60℃(273~333K) |
| Storage temperature | -40℃~+85℃(233~358K) |
