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Portable 2 channel/4 channel

FFT Analyzer CF-9200A/9400A

The CF-9200A and CF-9400A are an all-in-one portable FFT analyzers. All FFT analysis operations can be performed with the integrated hard keys and capacitance type touch panel without requiring an external PC for analysis. The new, exclusively developed 100kHz high-performance analysis front-end system incorporating a 24-bit A/D converter enables easier and more reliable analysis of noise and vibration generated by plant lines, pumps, motors, automobiles, railway vehicles, home electrical appliances and devices, and electrical and electronic parts than previous models. The CF-9200A and CF-9400A also offer solutions for field workers in their FFT analysis, including the resonance and frequency characteristics of mechanical structures in a vibrating environment with electromagnetic vibrators and impulse hammers.

Features

Speedy

     Keys and a touch panel for quick, light and intuitive operation

With the CF-9000A series, basic FFT analysis operations such as display, measurement, stopping, recording and readout can be made positively and quickly through the large hard keys. The touch panel provides an intuitive interface, allowing the operator to easily perform a range of operations with a swipe or tap, such as selecting the number of waveforms displayed and extending or shortening the X and Y axes to the desired scale.

Flexible

     Hot-swap & cordless 5 hours operation

With the CF-9000A series, basic FFT analysis operations such as display, measurement, stopping, recording and readout can be made positively and quickly through the large hard keys. The touch panel provides an intuitive interface, allowing the operator to easily perform a range of operations with a swipe or tap, such as selecting the number of waveforms displayed and extending or shortening the X and Y axes to the desired scale.

 

*1 When CF-9400A 4ch CCLD ON.
*2 Full recharge takes 7 or 8 hours depending on operating conditions.

Versatile

     Recording & performing analysis (FFT or RTA) simultaneously

The unit is compact but versatile, capable of carrying out a range of operations from FFT analysis, real-time octave analysis (RTA) *1 and rotation tracking analysis*2, to linear/log sweep analysis using signal output and electromagnetic vibrator control*3. The unit can also perform simultaneous analysis and recording operations, allowing offline analysis back in the office using the CF-9000A main unit and software applications.

*1 Octave analysis software (CF-0923) is required.
*2 Tracking analysis software (CF-0922) is required.
*3 Log sweep/excitation control software (CF-0942) is required.

Quiet

     Noise or vibration-free operation in a fan-less, spindle-les design

The unit is compact but versatile, capable of carrying out a range of operations from FFT analysis, real-time octave analysis (RTA) *1 and rotation tracking analysis*2, to linear/log sweep analysis using signal output and electromagnetic vibrator control*3. The unit can also perform simultaneous analysis and recording operations, allowing offline analysis back in the office using the CF-9000A main unit and software applications.

*1 Octave analysis software (CF-0923) is required.
*2 Tracking analysis software (CF-0922) is required.
*3 Log sweep/excitation control software (CF-0942) is required.

Standard functions

Real-time tripartite graph/VC Curves* (Vibration Criterion Curves) display function

The CF-9200A/9400A comes with a new real-time tripartite graph*1 display function.
During FFT analysis, three amplitude values (acceleration (m/s2) /velocity (m/s) /displacement (m) ) for an arbitrary frequency can be read out in real time. This function will eliminate the need to convert the amplitude by carrying out differentiation and integration individually by the frequency analysis function as with the previous models, thus enabling data at that amplitude to be read speedily. Displaying VC curves*2 after 1/3 octave processing helps to judge the allowable vibration reference or setting environment evaluation of precision instrument which is sensitive for vibration such as AFM, electronic microscope and laser interferometer.

*1 Amplitude of acceleration (m/s2) and displacement (m) based on the velocity (m/s) on the frequency axis (Hz) can be read by Tripatite graph (image).

*2 VC Curves are proposed as the allowable minute vibration reference of when precision instrument is set. The evaluation by 1/3 octave band width is used in VC Curves. The standard is divided into five stages in increments of 6dB (VC-A, VC-B, VC-C, VC-D, and VC-E) depending on the purpose of use such as optical microscope and laser instrument with long optical path. 

Generic Vibration Criteria for Vibration-Sensitive Equipment, Colin G.Gordon, SPIE99Evolving criteria for research facilities: I-Vibration

Wide & dynamic range

The CF-9000A series features a new 24-bit A/D front-end system, offering 120dB wide dynamic range. This eliminates the need for voltage range change in A/D oversampling, which otherwise needs to be frequently performed in acoustic or vibration measurement.

Measuring and data recording do not need to be repeated, making calculation and analysis much more efficient and the FFT analyzer easier to operate even for novices.

Isolated all inputs

With the CF-9000A series, all signal input channels are isolated (insulated). Highly resistant to ground loops and noise, the unit offers highly reliable measuring performance in locations prone to potential difference.

The isolation scheme also protects the crucial areas of the FFT system from sensors or signals that can be exposed to harmful transient voltages.

CCLD*equipped, TEDS*available

By each input channel with CCLD, an accelerometer with built-in preamplifier, charge convertor for charge output type accelerometer or a microphone can be connected directly to the CF-9200A/9400A. And using TEDS sensor enables power supply and unit calibration to sensor automatically.

*CCLD (Constant Current Line Drive) means the sensor interface using Constant Current Supply. CCLD from an accelerometer with built-in preamplifier or a microphone preamplifier enables direct connection to an FFT Analyzer without using external amplifier. 2 to 4 mA of CCLD is commonly used.

*TEDS (Transducer Electronic Data Sheet) is a general term for the method which contains information relevant to the sensor. It is defined in the IEEE 1451 series. As information of the sensor is automatically read to the TEDS available measurement devices or amplifiers, the user is ready to take measurements. It can avoid setting error and also saves you time and effort of troubling calibration and measurement preparation.

Easy operation through a touch panel interface

The CF-9000A series employs a 10.4 LCD capacitance type touch panel, allowing the operator to pinch and swipe FFT graphs. The band or gain of your choice can be widened or narrowed with a simple and intuitive action.

Reliable inputs with the new hard keys

With the CF-9000A series, operations such as turning the power on and off, changing data types and saving data are carried out using the new large hard keys. The positive feel of these keys assists fast and correct input even in unstable or dark sites, helping to prevent failures to save data and malfunctions caused by inadvertent inputs. Lock function (HOLD) for hard keys and touch panel are also effective.

Highly visible LED indicators

The status of major FFT operations are shown by LED indicators. The hard keys for major functions also have LED indicators. This enables the operator to monitor FFT operations even from a distance, such as the power-up process, the charge status of the secondary batteries and A/D oversampling.

 
Cable disconnection detecting function

Automatically detects cable disconnection or connector trouble of an accelerometer and a microphone*, preventing trouble before measurement. With the CF-9000A series, this function can be made disable.

*Built-in preamplifier CCLD type

 

FFT Basic analysis functions

Time-axis waveform

Performs A/D conversion of the raw waveform of an electrical signal of vibration, noise, pressure, strain, etc. coming from a sensor and then displays the result as time-domain data.
The X and Y-axis values at any point can directly be read using the search cursor. The delta cursor function makes it easier to read the time difference and level difference.
The time-axis data analysis function enables quantitative time-axis waveform analysis and diagnosis of such items as mean value (MEAN), root mean squared value (RMS) and crest factor (Crest Factor).