| Personal FFT Analyzer
CF-4210Z/4220Z
|
|
The CF-4210Z and CF-4220Z are
single-channel FFT analyzers that are equipped with a range of basic
functions.
CF-4220Z |
The CF-4210Z and CF-4220Z are single-channel FFT analyzers
that are equipped with a range of basic functions. The
jog/shuttle cursor, a wheel that combines the functions of a
rotary knob and a shuttle cursor, provides easy menu window
setup operation. The CF-4210Z/4220Z FFT analyzers can be used as
OK/NG judgment machines on production lines simply by installing
the comparator output card that is available as an option. The
incorporation of a 6.4-inch LCD screen has enabled a
considerable reduction in device weight (a reduction of 30% when
compared with the previous models, CF-4210A/4220A).
There are two models available: the standard CF-4210Z model
and the more sophisticated CF-4220Z model that is provided with
a microdot connector for direct sensor input and a floppy disk
drive. |
Features
-
16-bit A/D conversion, 85 dB (typ) dynamic range
-
1 kHz real-time analysis function provided as
standard; 20 kHz available as an option (CF-0430)
-
OK/NG judgment is performed with respect to the power
spectrum, 1/1 and 1/3 octave calculation results.
-
Up to a maximum of 16 blocks can be specified as the
judgment area.
-
The comparison judgment method can be selected from
five types: level, maximum value, area percentage, segment overall value
and peak level.
-
The judgment results can be displayed on the LCD, or
output using a relay contact.
-
Six types of functions such as Start, Start
Comparison Judgment, and so forth can be freely used for the contact
input.
-
NG data can be saved automatically to a floppy disk
(CF-4220Z only).
* The CF-0460Z option is required for points
3. to 8. above.
System Configuration
|
Comparator Function
The comparator function is available as an
option (CF-0460Z). A judgment block is specified for the
amplitude level, and then contact output used to perform
OK/NG judgment of products on a production line.
The reference parameter used by the
comparator is the rectangle defined by the upper and lower
frequency and level limits (hereinafter referred to as
"block"). Judgment is performed with respect to this block.
The maximum number of blocks that can be specified is 16.
The judgment level can be specified as (1) Upper limit value
only, (2) Lower limit value only or (3) Both upper and lower
limit values. The block's peak value or partial overall
value can be used to perform comparison judgment. With this
judgment method, a judgment area block is specified on the
power spectrum and one of five types of judgment methods
selected for OK/NG judgment. Control can be performed via
transmission through an RS-232C or other interface. A
maximum of six types of relay contact input functions can be
used, and control in combination with a sequencer can also
be performed. The judgment results can be output via contact
output to configure a system in combination with an inline
tool such as a rotating warning light or alarm.
The comparator function enables output of the OK/NG
results. In addition, it can be used as an external remote
control function. By registering GPIB commands to each of
the six contact input terminals, external control can be
performed of such functions as start/stop, changing of the
judgment parameters, and so forth.
|
Specifications
■
Processing functions
|
Time Domain |
Time-axis waveform |
|
Frequency Domain |
Power spectrum, Phase spectrum, 15 band 1/3 octave, 5 band
1/1 octave |
|
Amplitude Domain |
Probability density function, probability distribution
function |
■ Input section
|
Number of input channels: |
1 |
|
Input signal connectors |
BNC connector (front and rear panels)
Microdot connector (CF-4220Z only) |
|
Voltage range |
±10 mV to ±50 V, 12 ranges |
|
Dynamic range |
85 dB (typ) |
■
Analysis-related specifications
|
Frequency ranges |
1 Hz to 40 kHz, 19 ranges |
|
Number of sampling points |
1024 |
|
A/D resolution |
16 bit |
|
Frequency resolution |
1/400 of the frequency range |
|
Real-time analysis |
1 kHz standard (up to 20 kHz with the CF-0430 option) |
■ Trigger
section
|
Trigger modes |
Free, repeat, single, one-shot |
|
Trigger source |
Internal or external |
|
Trigger position |
Specifiable in one-point increments within the range of -1024
to 1023 points |
|
Trigger level |
Specifiable in ±1% increments with respect to full scale of
the voltage range |
■ Secondary
processing calculation functions
| Frequency axis
differential/integral function, power spectrum density, partial
overall, arithmetic calculation using memory waveforms |
■ Averaging
processing
| Averaging
modes |
Time axis waveform: Summation averaging
Power spectrum: Summation averaging, exponential averaging, peak
hold
Phase spectrum: Summation averaging
Octave: Summation averaging, exponential averaging, peak hold
Probability density function: Summation averaging |
| Number of
averages |
1 to 8192 |
■ Display function
|
Display |
6.4-inch liquid crystal display |
| Waveform
display mode |
Single frame, dual frame, two overlaid frames |
|
Display functions |
Y-axis auto scaling, Y-axis manual scaling, maximum value
display function, search function, Δ cursor function,
list display, label function, setup display, etc. |
■ Memory section
| Screen
data block memory |
30 frames
maximum |
| Panel condition
setups |
4 types |
■ 3.5-inch
floppy disk drive (CF-4220Z only)
| Number |
1 |
| Format |
MS-DOS format (1.2
M/1.44M) |
■
Comparator function (Option CF-0460Z)
|
Functions that can be
processed |
Power
spectrum, 15 band 1/3 octave, 5 band 1/1 octave |
|
Specifiable maximum number of blocks |
16 |
|
Comparison judgment |
Level, maximum
value, area percentage, segment overall value, peak level |
|
Output of judgment results |
When the
judgment is OK |
Contact closed; when
the judgment is NG: contact open. Please note however, that
the OK/NG logic can be changed |
| Display of judgment
results |
The OK/NG judgment
results can be displayed on the LCD. |
|
Automatic saving of NG data |
When the judgment is
NG, the data can be saved automatically to the screen data
block memory or to a disk (in common with the auto store
function) |
| Relay
contact input |
Six functions such
as Start, Start Comparison Judgment, and so forth can be
freely used as the ON/OFF switch. |
|
Interface |
RS-232C |
■ General
specifications
|
Power supply |
90 to 264 VAC (50/60 Hz) |
|
Power consumption |
Approx. 50 VA |
| Operating
temperature range |
0 to +40°C |
|
Storage temperature range |
-10 to +60°C |
|
Outer dimensions |
200(W)× 350(D)× 270(H)mm |
| Weight |
CF-4210Z; Approx. 4.4 kg , CF-4220Z; Approx. 5.2 kg |
 Options
Note: The minimum resolution is 10 mHz (when the
span frequency is 4 Hz)
Revised:
2006/09/19
|
