Ono Sokki FT-2500 Advanced Tachometer

FT-2500 advanced tachometer measures the rotational speed by using the signal of change in sound, vibration or magnetic flux from rotating machines such as motor or the like. 

The use of FFT technology enables the FT-2500 to calculate and display the rotational speed of any complex waveform signals from microphone, sound level meter or vibration sensor by extracting the frequency component which is equivalent to the rotational speed.

The FT-2500 has several advantages over conventional tachometers. Even though the rotating shaft is not accessible, it allows easy evaluation of the rotation object such as motor which has already been built in product. There is no need to affix reflective mark to the measurement object or special machining to the rotating shaft. A newly developed algorithm is incorporated in the FT-2500 so that not only the steady rotation of motor or engine but also the status of the accelerated/decelerated rotation can be measured with high response.

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Features

  • It does not require reflective marks or special machining to install a detector.
  • The rotation measurement can be performed easily from direct sound or vibration signal.
  • New algorithm is incorporated, that follows the change in rotational speed or acceleration/deceleration.
  • Analog & Pulse output function for rotational speed provided.
  • Equipped with RS-232C communication function as standard.
  • Optional Ethernet communication function enables control via LAN.

Further Information

Outline Specifications


Applicable sensor FT-0501, IP-292/296, IP-3000A/3100, VP-202/1220, OM-1500/1200
Constant Current Line Drive sensors, microphones, accelerometers and so on.
Measurement mode 1.Steady rotation measurement mode
  ・Frequency range: 500 Hz, 2 kHz, 10 kHz
  ・Resolution =Frequency range ÷ 12800 × 60 ÷set pulse count2.Rotation acceleration/deceleration measurement mode
  ・Frequency range: 250 Hz, 500 Hz, 2 kHz
  ・Resolution=Frequency range ÷ 6400 × 60 ÷set pulse count
Rotating direction acknowledgment Available when FT-0501 is in use.
Measurement accuracy ±2 x rotating speed resolution ±1 count
Averaging processing Moving average processing, allowable count: OFF, 2, 4, 8, 16
Filter function Can be set voluntary (Specifying each one of upper and lower rotating speeds.)
Display update time 0.5 ±0.2 second
Measurement display range 0 to 999,999 r/min(0 to 10,000 Hz)
Analog output voltage range 0 to 10 V/0 to F.S.
Rotational speed can be specified voluntary at 10 V output.
Analog output update time Steady rotation measurement mode: 500 ms or less
Rotation acceleration/deceleration mode: 250 ms or less
Sensor signal output for monitoring Sensor signal output for monitoring
(The output can be selectable from analog or monitor output.)
Comparator output Upper/lower-limit determination, rotating direction acknowledgment, OK determination
Output method: semiconductor relay (3 circuits are built-in.)
Pulse output Output the frequency equivalent to the displayed rotational speed x set P/R
(Hi: 4.5 V or more, Lo: 1 V or more)
External interface RS-232C, External command input connector, Ethernet (option)
Condition memory Saving 3 kinds of setting conditions.
Power requirement 100 to 240 VAC(50/60 Hz)
Power consumption 32 A or less
Operating temperature range 0 to +40 °C
Storage temperature range -10 to +55 °C
Outer dimensions 144(W) × 72(H) × 180(D) mm
Weight Approx. 1.2 kg
Accessories Panel mounting fixture, stand foot, rubber foot, connector (D-SUB <15-pin, plug>), Power cable (3P-3P, 1.9-m) .......... (1 pc. for each)
Option

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