ONOSOKKIHigh performance tachometerFT-2500The FT-2500 advanced tachometer is a device that measures the speed by detecting noise, vibration or changes in magnetic flux generated by motors and various rotating mechanisms. Since its calculation unit uses FFT (High Speed Fourier Transformation) technology, the range of sensor selection is increased. Even complex signal waveforms from microphones, sound level meters or vibration sensors can extract frequency components corresponding to the speed, thereby calculating and displaying the speed. In particular, for some products whose motors are already encapsulated in components and the shafts are not exposed, it is difficult to measure them using traditional methods. However, the speed of rotation can be easily measured using noise or vibration. There is no need to attach reflective sheets to the object being measured or perform special processing on the shaft as in the past. The current FT-2500 is equipped with new calculation and processing functions, which enables it to track the speed well. It can not only accurately measure the steady-state speed of the motor or engine, but also track the speed change to measure the dynamic speed with acceleration/deceleration components. Input unit compatible sensors FT-0501/0801, IP-292/296, IP-3000A/3100, VP-202/1220, OM-1200/1500 constant current drive sensor, various microphones, acceleration sensors and other test units. Measurement mode 1. Steady-state speed measurement mode Frequency range: 500 Hz, 2 kHz, 10 kHz Resolution = frequency range ÷ 12800 × 60 ÷ set number of pulses 2. Speed acceleration/deceleration measurement mode Frequency range: 250 Hz, 500 Hz, 2 kHz Resolution = frequency range ÷ 6400 × 60 ÷ set number of pulses Rotation direction judgment (only measurable when using FT-0501) Measurement accuracy ±2 × rotation speed resolution ±1 digit Count averaging processing Moving average processing, averaging points: OFF, 2, 4, 8, 16 Filter function can be set arbitrarily (upper and lower limits are set one by one) Display unit display refresh time 0.5 ± 0.2 seconds Measurement display range 0 to 999,999 r/min (0 to 10,000 Hz) Output unit analog output voltage range 0 to 10 V/ 0 to FS Speed at 10V output can be set arbitrarily Analog output refresh time Steady speed test mode: < 500 ms Speed acceleration/deceleration test mode: < 250 ms Sensor signal monitoring output For monitoring sensor signals (used alternately with analog output) Comparison output upper and lower limit judgment, Rotation direction judgment, OK/NG judgment Output method: semiconductor relay (3 circuits built-in) Pulse output Output displayed speed × set P/R equivalent frequency (Hi: > 4.5 V; Lo: < 1 V) External interface RS-232C, also the input terminal of external commands Storage unit ※ Status memory can store 3 types of setting conditions Compliance with standards (CE mark) Low Voltage (LVD) Directive 2014/35/EU EN61010-1 EMC Directive 2014/30/EU EN61326-1 RoHS Directive 2011/65/EU EN5058 General specifications Power supply AC100 ~ 240 V (50/60 Hz) Power consumption < 32 VA Operating temperature range 0 ~ +40 ℃ Storage temperature range−10～＋55 ℃ Dimensions 144 (W)×72 (H)×180 (D)mm Weight < 2 kg