*The above photo includes Vibration Comparator (VC-2200/3200) and an accelerometer (NP-3331N30), cable (NP-0143), magnet base (NP-0100) besides.
The VC-2200/3200 is a Vibration comparator which is used for maintenance and constant monitoring of production facilities with high accuracy, high function, and low cost in a single unit.
The VC-2200/3200 Vibration Comparator utilizes high-speed calculation by employing a digital signal processor (DSP) in DIN size. Newly installed TEDS function enables high performance calculation, time reduction, and less human errors in setup.
From the output signal of an accelerometer, the VC-2200/3200 simultaneously judges two different frequencies with one unit. Besides, the data is easily managed with a PC. The VC-2200/3200 has multiple roles including detection, judgment, and data management.
The VC-2200/3200 features checking of "visual and auditory". It has function of checking the vibration with sound by connecting headphones as well as checking the vibration with view by on-screen numerical displays and bar graphs.
The "comparator gate input function" is also equipped which can extract only the necessary vibration phenomenon by controlling the timing signals from a PLC. All of these functions are packed into a compact DIN size (96mm X 96mm).
Since the VC-3200 has digital filters, measurement modes more than the VC-2200, it works effectively in measurement that requires detailed judgment condition settings.
Features
• NEW FUNCTION
1. TEDS FunctionVC-2200/3200
(*Available when it is connected to an accelerometer with TEDS function.)
2. Logarithmic bar chart VC-2200/3200
Easily viewable small level vibration
3. Headphone volume MUTE function VC-2200/3200
Mute function protects ears from impulsive sound when a sensor is mounted etc.
4. Settings of measurement/judging conditions by one command VC-2200
Measurement conditions or judging conditions can be set by one command. Selectable from setting in a batch or each setting.
*The VC-3200 can memory 5 conditions depending on the product judgment conditions.
5. Power averaging operation/judgment function VC-3200
Power averaging operation and its judgment are possible.
6. ISO 2954:2012 compatible filter VC-3200
Enables rotation and mechanical vibration measurement of reciprocating devices.
Functions inherited from the VC-2100/3100 (previous model)
With Analog output
Simultaneous output of AC and DC signal for each specified band Useful for connection to FFT Analyzer or recorderDigital display function
Displays vibration levels in both numericals and a bar chart on the screen.2 –band simultaneous judgment
VC-2200/3200 featuring 2-band judgment based on whether rms or peak value for each band. Judging by vibration value, more complicated judgment can be made easily.Compact size of DIN 96 x 96
Multi-function in a single compact body. Designed in consideration of installation to the panel.Comparator delay time setting
If vibration exceeding the judgment level lasted for the specified period or longer, the comparator output can be made. It prevents misjudgment caused from human error that an operator touch the sensor with a tool etc. in mistake.Comparator gate input
This is used for automatic judgment such as quality judgment of product lines. The timing can be controlled to measure vibration phenomena at the right time.Headphone connection
Vibration sound can be checked when connecting commercially available headphones. Also used as the substitute for an auscultation rod. Phenomenon of the each specified band can be checked.Memory function (VC-3200)
The VC-3200 has a memory function. Since it remembers the setting conditions before power off, you can immediately start measurement with same setting conditions. The VC-3200 has also data memory function to memory measured data.
Application example
Quality judgment of products using vibration
-Pass/fail judgment of bearing using vibration-
Rotate the bearing and detect the vibration value for judgment. By focusing on the frequency band, it is possible to know the content of detected defect (flaw, foreign material inclusion, imbalance etc.). Speed sensor is also used along with accelerometers. In that case, it is necessary to set the VC-2200/3200 in external input mode.
Related field
Home appliance manufacturer(washing machine, air conditioner etc )
Automobile manufacturer(power seat, door mirror etc )
Parts manufacturer(motor, bearing, gear etc )
Detection of abnormal operation of machine tools
Detecting axial runout of a machine tool.
Axial runout of machine tools has a great influence on the accuracy of finished product. Basically the runout of axis is measured by displacement gauge, which, however, is difficult due to environmental conditions, working conditions, cost, etc. Because the VC-2200/3200 can detect abnormality of axis according to vibration level, it is not influenced by environmental conditions and can be used for usual monitoring. The greater the axial runout, the greater the vibration level. In other words, monitoring the amount of vibration continuously and checking it lead to finding abnormality of the machine tool.
Related field
Manufacturing and processing of machine tool
Vibration monitoring of an endurance testing machine, engine, baring, bear teeth
Facility monitoring
-Monitoring vibration to detect abnormality of bearings, gears and other parts of production facilities without attendance-
Facility diagnosis used to take a lot of work and time. An operator must measure and keep watching vibration from the facility because the vibration change gives an indication to know the timing of parts replacement or even abnormality. The VC-2200/3200 can continuously monitor vibration to detect unusual movement, prevent it from serious breakage and save the labor. The frequency band can be specified that might indicate the abnormality.
Related field
Iron and steel
Chemical plant
Plant management of production line etc.
Detection of break and wear of tool
Detecting drill bit break, tool bit break etc of operating machine tool without attendance
For the machines which process quite a large quantities of parts, such as NC machine, unattended operation is employed. If the drill bit or other tool is broken during unattended operation, it causes defective products. Reprocessing or disposal of these defective products is nothing but waste of money. The VC-2200 detects vibration when the drill bit is broken and makes stop the operation if occurred, as a result, minimizes producing defectives. Worn drill bit also lowers processing accuracy. Monitoring vibration change and checking the operation help to improve the processing accuracy.
Related field
Parts processing industry
Manufacturer of machine tool
Monitoring of cutting line in a factory
Imbalance detection of grinding stone
Overview specification
Input section
| Number of input channels | 1 |
|---|---|
Signal input |
Switched between an accelerometer with a built-in preamplifier and an external voltage signal *Accelerometer with a built-in preamplifier Applicable accelerometer : NP-3331B,NP-3331N20(Discon) (TEDS supported, accelerometer with a built-in preamplifier) ,NP-3331N30 (TEDS supported, accelerometer with a built-in preamplifier) ◆ When you use other than NP-3331B or NP-3331N20(Discon) ,NP-3331N30, please contact your nearest distributer or send us an e-mail (overseas@ONO SOKKI.co.jp) *External voltage signal *Input connector : C02 (BNC) |
| Cable
disconnection detection function (VC-3200) |
Cable
disconnection can be detected when using CCLD. Open collector output (positive) *Common to over output(selectable) |
| Sensor sensitivity setup | 1.00 x10-2 to 9.99 x102 mV/(m/s2)digital input |
| Unit setup | m/s2 or EU selectable |
| Input range | 0.1 to 50,000 m/s2 (Setup range
differs depending on the sensor sensitivity.) |
| Frequency characteristics | 3 Hz to
15 kHz ±0.5 dB 1.5 Hz to 20 kHz ±3 dB (160 Hz reference value) |
| Input-referenced noise | 3 Hz to 20 kHz band: 30 µVrms or less |
| Dynamic range | Through /AC : 80 dB or more(input voltage range x1, x2, x5) 70 dB or more(input voltage range x10, x20, x50, x100, x200, x500) THR(Through) : 1.5 Hz to 40 kHz bands AC : 1.5 Hz to 20 kHz bands |
| TEDS function (* Note) | Available to the TEDS sensor (IEEE1451.4)(Ver1.0 or later) |
* Non-insulated type accelerometer may be affected by the noise with the grand loop. Insulation of the sensor mount and cable routing must be performed carefully to avoid interference of noise.
* Note: If a TEDS supported sensor made by other companies is used, TEDS information may not be read depending on the type of a TEDS tip included in a sensor.
1. If you are considering the purchase of a TEDS sensor made by other companies, please consult to the manufacturer or dealer of the TEDS sensor, and perform the operation check.
2. When you want to use a TEDS sensor you already have with the TEDS supported measurement instruments made by Ono Sokki, please perform the operation check with a demonstration product of Ono Sokki. (Please consult your nearest distributor or Ono Sokki sales office nearby.)
External control signal input
| Contact input | Key protect· reset input· gate input |
|---|---|
| Input voltage range | HI : + 2.4 to + 5.0 V LOW : 0 to + 0.8 V (Non-voltage contact input available) |
| Non-voltage input | Open circuit voltage :
+5 V Short circuit current : 0.5 mA or less Contact resistance : 50 Ω or less |
| RS-232C output | Provided as standard
＊Transfer speed : VC-2200 9600 bps |
Analysis section
| VC-2200 | VC-3200 | Option (bandpass-filter) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| VC-0321 Low frequency band |
VC-0322 Intermediate frequency band |
VC-0323 High frequency band |
|||||||||
| Number of setup bands | 2 | 3 | - | - | - | ||||||
| Band filter | HPF(Highpass filter)/LPF(Lowpass filter) |
|
|
|
|
|
|||||
| *LPF(Lowpass filter) | -48dB/oct Butterworth characteristics -3 dB ± 1 dB at fc | ||||||||||
| Analog filter | LOW cut (Highpass filter) | -3 dB±1 dB -18 dB/oct at 10 Hz fc |
-3
dB±1 dB -18 dB/oct at 3Hz,10 Hz* fc |
- | - | - | |||||
| HI cut (Lowpass filter) | -3
dB±1 dB -18 dB/oct at 1 kHz, 10 kHz fc |
-3
dB±1 dB -18 dB/oct at 1 kHz* |
- | - | - | ||||||
*Low cut 10 Hz and Hi cut 1 kHz of VC-3200: Conforms to ISO 2954-2012
*fc: cutoff frequency
Calculation section
| VC-2200 | VC-3200 | |||
|---|---|---|---|---|
| Measurement mode | Selection | · RMS value · Peak value · MAX hold · Peak hold |
· RMS value · Peak value · Peak/MAX RMS factor (PEAK/rms) · MAX hold · Peak hold · Peak/MAX RMS factor hold (PEAK/rms) · Power average | |
| RMS value | RMS
value
|
RMS
value
|
||
| Peak value | Peak value of time waveform absolute value | |||
| PEAK/MAX RMS factor (PRF) | None | Peak value ÷ MAX RMS value | ||
| MAX hold | Holds the MAX value of RMS value | |||
| PEAK hold | Holds the MAX value of PEAK value | |||
| PEAK/MAX RMS factor hold (PRF hold) |
None | Holds the MAX value of PEAK/MAX RMS value | ||
| Power average | None |
|
||
| Other avaraging function Tactmax value: TAVG |
None | Displays max. value for 500 ms.
The number of average: OFF/4/8/16/32/64 selectable |
||
Output section
| Analog output | THR
(through output) / AC output / DC output (AC/DC: select
the output of each band)
＊Output impedance : approx. 50 Ω • Current output function of the VC-2100 (option) : Not supported. |
|---|---|
| Headphone | AC output
for each band
＊Max. output : 15 mW or more to the rated impedance
24 Ω |
| CAL signal output | 160 Hz, 1 V0-p ± 3 % (output from through/AC/DC) |
| Over output | Output
when input range over or A/D over Open collector output (negative logic) VC-2200: output when input range over and A/D over ＊Voltage : DC 30 V or less |
Comparator output
| Function | VC-2200:
Judgment is made independently for each band. Selection
of either rms or peak value judgment for each band
VC-3200: Judgment is made independently for each band. Selection of rms / peak value / peak· maximum rms judgment factor for each band |
|---|---|
| Comparator level setting | Can be set in steps of 1% of the full-scale range |
| Output | Output when over or under the setup value VC-2200: Open collector output (Output positive and negative logic simultaneously) VC-3200: Open collector output (Setup selectable from positive and negative logic) ＊Voltage : DC 30 V or less |
| Operating time | 100 ms or less |
| Delay time setting | Selectable from 0· 0.5· 1· 1.5· 2· 3· 4· 5· 6· 7· 8· 9· 10· 15· 20 -second |
Display
| Display | LCD with backlight Measurement value display : 4-digit digital display Display update : 0.5 seconds Bar chart display (Bar-chart display update time : 0.1 seconds) (Linear/logarithmic display selectable) Comparator level display |
|---|---|
| OVER indicator | Input range over or A/D over: red light ON |
| NG indicator | Comparator NG output: red light ON |
| Comparator ON/OFF indicator | Comparator ON: green light ON |
Others
| Condition backup | Setting values are saved in memory when the power is switched OFF. |
|---|---|
| Terminal strip | M3.5 screw with square washer |
General specification
| Power supply | Rated DC24 V (±10 %) |
|---|---|
| Current consumption | 0.2 A or less (25 °C) |
| Operating temperature range | 0 to + 50 °C |
| Storage temperature rage | −5 to + 55 °C |
| Operating humidity range | 85 % RH or less (with no condensation) |
| Outer dimensions | DIN 96 x 96 x 112 mm (excluding protruded section) |
| Material | 94V0 PBT(polybutylene terephthalate) |
| Weight | Approx. 500 g |
| Option | VC-0423
Integration software (VC-2200/3200) VC-0321 Low frequency band-pass filter VC-0322 Intermediate frequency band-pass filter VC-0323 High frequency band-pass filter |
Revised:2017/04/13
