Measurement Section |
Measurement object | DC motor, compressor, engine or other general rotating objects |
Calculation method | FFT calculation method |
Measurement time | 250 ms or less |
Input frequency range | 2000 Hz range | 30 to 2000 Hz (1,800 to 99,999 r/min) | 500 Hz range | 7.5 to 500 Hz (450 to 30,000 r/min) | 250 Hz range | 3.75 to 250 Hz (225 to 15,000 r/min) |
(at 1 P/R ) |
Measurement unit | r/min (rotation speed) |
Measurement accuracy | ±2 x rotation speed resolution (r/min), ±1 count * The rotation speed accuracy depends on the frequency range. |
Minimum rotation speed resolution | Frequency range (Hz) ÷ 6400 x 60 ÷ the number of pulses set (P/R) * The resolution becomes coarse when the rotation speed is accelerating or decelerating.
6400 = 200 lines x 32 |
Filter function | Limited to the frequency range that you want to measure (rotation speed range) from the overall range of the selected frequency range |
Averaging function | Moving average
No. of averages: OFF, 2, 4, 8, 16 |
Sensor amplifier sensitivity adjustment dial | The sensor amplifier sensitivity can be adjusted by using the rotary dial located on the right side of the main unit. |
Detection section |
Applicable detector | Engine rotation | OM-1500, OM-1200, IP-292, IP-296, IP-3000A, IP-3100, FT-0801 | Vibration | VP-202, VP-1220, NP-2000 series NP-3000 series | Sound | MI-1432(microphone)+ MI-3111(preamplifier) | Others | FT-0501+FT-0150 Magnetic flux leakage sensor with exclusive cable (0.5 meter) |
* Please note, however, that detection may not be performed correctly depending on the engine or measurement object. |
Voltage level | 5 V :Max ± 5 V
0.5 V :Max ± 0.5 V
0.05 V:Max ± 0.05 V |
Input coupling | AC coupling |
Power supply for NP sensor | Constant Current Power Supply (2.4 ±0.5 mA) |
Display section |
The number of display digits | 5 digits |
Character height | 10.2 mm |
Display | 7-segment LCD with backlight |
Display update time | 0.5 ± 0.2 seconds |
Display resolution | 1 r/min |