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 (18,000 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-1200, IP-292, IP-296, IP-3000A, IP-3100, FT-0810 |
Vibration |
VP-202, VP-1220, NP-2000 series NP-3000 series |
Sound |
MI-1432(microphone)+ MI-3111(preamplifier) |
Others |
Magnetic flux leakage sensor, LED reflected-light optical fiber sensor |
* 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 |
Measurement mode section |
CNS(Constant) |
Mode A, B |
Use this mode when there are minimal fluctuations in rotation speed of an object under measurement. (when measuring the rated speed or similar) |
|
ACT(Active) |
Mode C, D, E |
Use this mode when rotation speed of an object under measurement accelerates or decelerates. (please note, however, that measurement may not be performed correctly in the case of sudden changes) |
|
Analog output section |
【REVO】Analog output |
Signal output |
In proportional to the rotation speed displayed value |
Voltage range |
0 to 1 V/0 to F.S.(F.S. can be specified optionally.) |
Conversion method |
10 bit D/A conversion method |
Linearity |
±1 % of F.S. |
Output update time |
250 ms or less |
Temperature stability |
±0.05 % of F.S./ °C (Zero & Span) |
Setting error |
±0.5 % of F.S. (adjustment setting error at the time of shipment from the factory, ZERO & SPAN) |
Load resistance |
100 kΩ or more |
Output connector |
Ultra-mini jack (Φ 2.5) |
|
【SIG】Analog output for monitor |
Signal output |
Analog output for monitor after waveform shaping of sensor signal |
Load resistance |
100 kΩ or more |
Output connector |
Ultra-mini jack (Φ 2.5, same which is also used as REVO output.) |
|
Pulse output section |
Output signal |
Frequency pulse of power spectrum extracted with FFT processing |
Output voltage |
Lo: 0.5 V or less, Hi: 4.5 V or more(with no-load) |
Output update time |
Steady rotation measurement mode(Constant):500 ms or less
Rotation acceleration/deceleration measurement mode (Active):250 ms or less |
Load resistance |
100 kΩ or more |
Output connector |
Ultra-mini jack (Φ2.5, same which is also used as REVO output.) |
General specifications |
Power source |
Type AAA battery cell x 4 pcs. or PB-7090 exclusive AC adapter (option) |
Continuous operating time |
Approx. 6 hours (when the backlight is off.)
Approx. 5 hours (when the backlight is on.)
(When alkaline batteries are used at a temperature of 20 °C; excluding the use of an NP series accelerometer *1)
*1: When an NP series accelerometer is used, current consumption increases because of the constant current power supply used to drive the NP series accelerometer. Use of the exclusive adapter is therefore recommended. |
Battery LOW display |
The "LOW" mark flashes when the voltage has dropped to approx. 4.2 V. |
Operating temperature range |
0 to +40 °C |
Storage temperature range |
-10 +50 °C |
Operating humidity range |
+35 to +85 % RH (with no condensation) |
Storage humidity range |
+35 to +85 % RH (with no condensation) |
Outer dimensions |
189.5(L)× 66(W)× 47.5(D)mm (main unit only) |
Weight |
Approx 230 g (main unit only; not including batteries) |
Accessories |
Type AAA alkaline battery cell x 4 pcs., carrying case, instruction manuals (3 kinds) |