The core component of KJT gear speed sensor uses magnetoresistance as the detection component, and then uses a new signal processing circuit to reduce noise and improve functions. By comparing with the output waveforms of other types of tooth speed sensors, the error of the measured speed is extremely small and the linear characteristics are very consistent. The sensing objects are magnetic materials or magnetically permeable materials, such as magnetic steel, iron and electrical steel. When the magnetic or permeable material with protrusions (or depressions) on the measured object rotates as the measured object, the sensor outputs a pulse signal related to the rotation frequency to achieve the purpose of speed measurement or displacement detection.
| Product Paramenters |
| PNP pulse/min | 6…150 | KJT-SK-K1 slow speed type |
|
| 120…3000 | KJT-SK-K2 fast type |
|
| 2-wire AC pulses/min | 6…150 |
| KJT-SK-K3 slow speed type |
| 120…3000 |
| KJT-SK-K4 fast type |
| Connection method | Preset 2mPUR cable |
| Protection level | IP67 |
| action area | 0…8mm |
| Standards compliant | GB/T14084.10 |
| Working temperature | -25℃…+75℃ |
| action instructions | led |
| Operating Voltage | DC 12…48V | AC12..48V (50/60Hz) | AC 110…120V (50/60Hz) | AC 220…240V (50/60Hz) |
| Voltage limits (including ripple) | DC 10…58V242V | AC 20…60V | AC 93…132V | AC 187…264V |
| Switching capacity | 0…200mA（Overload short circuit protection） | 40…350mA (2A surge current) | 20…350mA (2A surge current) | 20…350mA (2A surge current) |
| Voltage parachute (closed state) | <=1.8V | <=4.5V |
| Leakage current (open state) | <=3.5mA |
|
| Current consumption | <=10mA |
|
| Suitable for large switching frequencies | 6000 times/min, (slow type); 48000 times/min (fast type) |
| Hysteresis curve (△Fr) | 5…15% of Fr |
| Power transfer lag | 9s±20%+1/Fr |
