The CF-9200A/CF-9400A allows you to perform basic FFT analyzer operations such as display, measurement, stop, recording, and readout using large hard keys. This ensures reliable and speedy operation.

Setting the number of waveforms displayed and zooming in and out of the X and Y axes can be done intuitively using swipes and pinches on the touch panel. You can easily change to your desired scale.

The CF-9200A/CF-9400A features two high-capacity lithium-ion rechargeable batteries, enabling up to 8 hours of continuous cordless operation.

Furthermore, the hot-swap mechanism allows for battery replacement while the power is on, enabling measurement work to continue without interrupting analysis or recording or requiring reconfiguration. The built-in battery can also be charged while in operation*.

* It takes approximately 7-8 hours to fully charge with the power on.
With the power off, it lasts approximately 7-8 hours (at an operating environment of 20°C).

This portable device condenses not only FFT analysis, real-time octave analysis (RTA) ^*1, and rotational tracking analysis ^*2, but also linear/log sweep analysis using signal output, and amplitude excitation control of electromagnetic exciters ^*3.

Simultaneous recording during analysis is possible, and offline analysis can be performed using the CF-9200A/CF-9400A unit or its peripheral software.

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

The CF-9200A/CF-9400A achieves high performance without a fan or spindle. It emits no mechanical noise or vibration. In acoustic and vibration measurement and recording environments, the CF-9200A/CF-9400A unit itself will not be a source of noise or vibration.

By installing a wireless LAN adapter, you can operate the CF-9200A/CF-9400A unit using a tablet or other device without touching the unit itself ^*.

The CF-9200A/CF-9400A allows for real-time simultaneous reading of frequency (Hz) and three amplitude values (acceleration (m/ ^s²), velocity (m/s), and displacement (m)) using a tripartite graph ^* 1.
Furthermore, by performing a 1/3 octave adjustment and displaying the VC curve ^*2 (Vibration Criterion Curves), it is possible to quickly determine the permissible vibration standards and installation environment evaluation for vibration-sensitive precision equipment such as AFMs, electron microscopes, and laser interferometers.

Unlike conventional methods that required individual differentiation and integration processing using frequency analysis functions to convert amplitude values, this new feature enables speedy reading of each amplitude value.

*1 The tripartite graph (Figure) allows for amplitude readings of acceleration (m/ ^s²) and displacement (m), based on velocity (m/s) on the frequency (Hz) axis.

*2 The VC curve is proposed as a standard for the acceptable level of micro-vibration when installing precision machinery. When using the VC curve, evaluation is performed at a 1/3 octave bandwidth, and the standard is divided into five stages (VC-A, VC-B, VC-C, VC-D, VC-E) in 6 dB increments, serving as a guideline for various applications, from optical microscopes to laser devices with long optical path lengths.

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

The CF-9200A/CF-9400A features a newly developed front-end with a 24-bit A/D converter, achieving a wide dynamic range of over 120 dB. This eliminates the need to frequently change the voltage range due to A/D overshoot, which was common in typical acoustic and vibration measurements.

The elimination of the need to redo measurements and data recordings has significantly accelerated measurement and analysis work, and it has also made it possible for novice users unfamiliar with FFT analyzers to use it with confidence.

The CF-9200A/CF-9400A features complete isolation (isolation) of all signal input channels.
It offers high immunity to ground loops and noise superposition, enabling reliable measurements in measurement environments and targeting situations where potential differences are likely to occur.

Furthermore, it protects critical FFT systems from sensors and signals that may be exposed to dangerous transient voltages.

The CF-9200A/CF-9400A features a 10.4-inch LCD with a capacitive touch panel.

The FFT graph manipulation now utilizes gesture controls such as tapping and swiping. This allows for easy and intuitive scaling of the measurement bandwidth and gain.

Waveform amplitude graph scale fitting, waveform swapping, time and frequency axis scaling, waveform offset, and span adjustment can all be done with simple gesture controls.

The CF-9200A/CF-9400A uses newly developed large hard keys for power on/off, major operations, switching display data types, and saving data.

It provides quick and reliable operation even in unstable and confined spaces, preventing data loss and malfunctions.

It also features a lock function (HOLD) for the hard keys and touch panel to prevent accidental operation or setting changes due to unintended contact.

The CF-9200A/CF-9400A displays the main operating status of the FFT by illuminating LEDs.

LEDs are built into the main hardware keys, as well as the startup process, the charge status of the built-in rechargeable battery, and the A/D converter's Over status, allowing the operator to monitor the FFT's operation status even from a distance.

Automatically detects cable breaks or connector failures in Accelerometer and microphones ^*.

This prevents problems before the actual measurement takes place.
The CF-9200A/CF-9400A also allows you to disable the wire break detection function.

* Built-in constant current drive (CCLD) type preamplifier

By connecting the CF-9200A/CF-9400A to a Windows® PC using a LAN cable, you can copy and write various measurement data, operate the PC using the remote desktop function ^*1, and project the CF-9200A/CF-9400A screen using a projector.

Furthermore, by using the optional LAN external control function (CF-0947), the CF-9200A/CF-9400A can be controlled programmatically.

PC requirements: Windows® 10 (32-bit and 64-bit versions)

By attaching a wireless LAN adapter ^*2 to the CF-9200A/CF-9400A unit, you can wirelessly transfer FFT data and record data stored on the CF unit to a Windows® PC.

Furthermore, by using the remote desktop function ^*1, you can view the screen and remotely control the CF-9200A/CF-9400A series from a Windows® PC or various portable information terminals.

By attaching a short-range wireless communication adapter ^*2 to the CF-9200A/CF-9400A unit, you can wirelessly print graphs from the display screen to a mobile printer ^*3 simply by pressing the "PRINT" button on the unit. You can also connect keyboards and other devices wirelessly.

It performs A/D conversion on voltage signals from sensors such as vibration, noise, strain, and current probes, and displays them as time-domain data.

You can directly read the X and Y axis values of any point using the search cursor, and easily read time differences and level differences using the delta cursor function.

The time-axis statistical analysis function allows for quantitative analysis of time-based waveforms such as the mean (MEAN), effective value (RMS), and crest factor, as well as anomaly diagnosis.

The power spectrum is calculated by performing FFT analysis to determine the intensity of each frequency component contained within the captured time-domain waveform, calculating the power for each frequency bandwidth (frequency resolution Δf), and then graphing it with frequency on the horizontal axis.

Power spectrum analysis allows for the measurement of vibration and noise levels, equipment anomalies that are difficult to estimate from time waveforms alone, and the natural frequencies of structures.

The frequency response function (FRF) in mechanical or electrical circuits represents the ratio of input to output on the frequency axis using gain and phase characteristics.

The gain characteristic represents how the amplitude changes as the input signal passes through the transfer system being evaluated, with the Y-axis representing the ratio of the output amplitude to the input amplitude.

The phase characteristic indicates the phase lead or lag between the input and output signals, and the Y-axis is displayed in degrees or radians.

The tracking analysis function (CF-0922) automatically saves vibrations, noises, and other phenomena generated when various rotating machines rotate in the low to high speed range while performing FFT analysis, and allows for the analysis of physical phenomena such as vibrations and noises that change with speed, based on the rotational speed.

Rotating machinery, such as engines, gearboxes, turbines, and electric motors, operates across a wide range of speeds, from low to high RPMs. At certain rotational speeds, the components can resonate, generating significant vibrations and noise. To reduce the risk of damage and improve the quietness of the equipment, it becomes necessary to evaluate the relationship between rotational speed and the natural frequencies of the components.

The tracking analysis function (CF-0922) allows you to visualize and analyze the relationship between rotational speed and the resulting physical phenomena from various perspectives, such as color maps, three-dimensional graphs, and order components based on one rotation, for a specified range of rotational speeds.

An octave refers to twice the frequency, and because the frequency response perceived by the ear is geometrically uniform, octave analysis (CF-0923) is effective for noise analysis.

Within the frequency range of the noise being measured, the sound pressure level for each band can be determined by passing it through a bandpass filter specified to a 1/1 octave or 1/3 octave standard.

The Log Sweep function allows you to continuously change the frequency of the driving sine wave from the 1-channel signal output module (CF-0971) and evaluate the resonance point of the target transmission system.

By performing a sine sweep on the frequency axis using a logarithmic scale, the gain and phase can be determined for each frequency, allowing for the acquisition of an accurate response function with a high signal-to-noise ratio.

Furthermore, the excitation control allows the amplitude of the exciter to be controlled within an arbitrary range during excitation and sweeping, enabling excitation tests to be conducted without considering the frequency characteristics of the electromagnetic exciter.

* The Log Sweep/Excitation Control function (CF-0942) requires a 1-channel signal output module (CF-0971).