Máy đo tốc độ vòng quay Ono sokki FT-7200 Advanced Handheld Tachometer

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Máy đo tốc độ vòng quay Ono sokki FT-7200 Advanced Handheld Tachometer

Mã sản phẩm: FT-7200

Tình trạng:

Máy đo tốc độ vòng quay Ono sokki FT-7200 Advanced Handheld Tachometer

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Thông tin sản phẩm hướng dẫn đặt hàng & vận chuyển

Model : Ono Sokki FT-7200

The FT-7200 Advanced Tachometer is an easy-to-use handheld digital tachometer offering high functions and performance. The use of FFT (Fast Fourier Transform) technology enables the FT-7200 to perform frequency analysis of rotation speed by using change of signal in sound, vibration or magnetic flux from rotating machines such as a motor or the like. Selection from 5 kinds of measurement modes allows it to calculate and display rotation speed of any complex waveform signals from a sound level meter or an accelerometer accurately by extracting the exact frequency component.

The FT-7200 enables non-contact measurement of rotation speed by sound or vibration from a measurement object with inaccessible rotating shaft such as a built-in motor in a product, which disabled using conventional tachometers. No need for affixing a reflection mark or modification to a rotating shaft of a measurement object.

Also the use of new algorithm allows calculation and displaying with high follow-up performance, even a sudden change of rotation speed in rising/falling edge of a motor or accelerated/decelerated engine rotation, which has been disabled with conventional models. The FT-7200 is a battery-operated and easy to carry handheld tachometer facilitating on-site measurement.

The FT-7200 can be used with various optional detectors by Ono Sokki; microphone and sound level meter, accelerometer and engine vibration detector, ignition pulse detector and so on. In addition, the FT-0801 cigarette lighter socket sensor is available for detecting voltage output from power outlet in vehicle. Selectable from wide range of detectors depending on your requirements.

Overview Specifications

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-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)

Options

Ignition pulse detector (Primary side) IP-292	Ignition pulse detector (Secondary side) IP-296	Ignition pulse detector IP-3000A	Ignition pulse detector IP-3100
Motor/gasoline engine RPM detector OM-1500/1200	DC motor rotation detector FT-0501	Piezoelectric-type accelerometers NP-2000/3000 Series * Charge amplifier is required additionally when NP-2000 series accelerometer is used.
Engine rotation detector VP-202	Engine rotation detector (High-sensitive type) VP-1220	Cigarette lighter socket sensor FT-0801 Input voltage:12 or 24 V Cable length:2 m Connector:BNC
Magnetic stand/stand jig HT-0522/0521B The state which attached the main body.	Tripod LA-0203D	AC adapter PB-7090	Analogue output signal cable (2 m) AX-501 Used for both analog and pulse outputs, Φ 2.5 pin plug – CO2 plug (BNC)