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Onosokki
Vibration Comparator

Vibration Comparator

Product catalog summary

Introduction
The VC-2100 is a compact and versatile vibration comparator used for vibration monitoring in various applications such as product testing, facility diagnostics, and machine tool monitoring. It combines vibration detection, measurement, and diagnosis in one unit.

Features

Simultaneous Two-Band Judgment: Allows setting two frequency bands for effective or peak value judgments, aiding in complex vibration analysis.
Compact Size: Designed for easy panel mounting, occupying less than 1/5 of the space of previous models.
Comparator Delay Time Setting: Prevents false operations by setting a delay for comparator output when vibration exceeds a set level.
Comparator Gate Input: Enables automatic go/nogo product testing by controlling measurement timing.
Headphone Output: Allows auditory checks of vibration sounds.
Analog Output: Provides AC and DC signals for each band, compatible with analysis equipment.
Digital Display Function: Displays vibration values digitally and visually through a bar graph.

Applications

Tool Breakage and Wear Detection: Detects tool breakage and monitors tool wear in machine tools.
Facilities Diagnosis: Detects abnormal operations in machine tool shafts with continuous monitoring.
Abnormal Operation Inspection: Monitors bearings and gears for abnormalities.
Go/Nogo Diagnosis: Tests bearings based on vibration values to detect issues like damage and unbalance.

Specifications

Input Section: Supports one input channel with options for acceleration pickup or external voltage signal.
Analysis Section: Features two settable bands with high-pass and low-pass filters.
Processing Section: Offers multiple measurement modes including rms, peak, maximum hold, and peak hold.
Output Section: Provides analog and headphone outputs, with RS-232C output for data transmission.

Additional Specifications

Over Output: Activates when input or A/D range is exceeded, using open-collector output.
Comparator Output: Independent judgments for each band with options for rms or peak value judgment.
Display: Backlit LCD with a 4-digit digital display and bar-graph.
Backup: Settings are saved when power is off.
General Specifications: Power: 22 to 26 VDC, Operating Temperature: 0 to +50°C, Dimensions: 96 x 96 x 112 mm.

Contact Information
Head Office in Japan, with branches in the USA, Canada, Europe, and China.

Catalog excerpts

The VC-2100 can serve as your vibration "watchdog" in a wide range of situations ɹ in which vibration-based judgments must be made, such as in go/nogo vibration testing of products, facilities diagnosis, and machine tool cutting tool damage. Combined with an acceleration pickup, it provides a full range of functions, ɹ from vibration detection through measurement and diagnosis, in a single package. >

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It is possible to perform a go/nogo test of bearings based on vibration values. > The bearing is rotated and the diagnosis is made based on the resulting bearing vibration. By noting the vibration in a particular frequency band, it is easy to detect particular problems in bearings, such as damage, foreign matter, and unbalance). In addition to an acceleration pickup, it is possible to use a velocity pickup as the sensor. When using a velocity sensor, the VC-2100 is switched to external signal input. It is possible to detect abnormal operation of the main shaft of machine tools. > The runout of...

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Measurement: Digital and Bar-graph Display of Vibration Values > High-accuracy analysis is per-formed in accordance with analysis conditions, and a display is pre- sented of vibration values and vibration con-dition (bar-graph display). By displaying measurement screens for each band separately, it is pos- sible to collect the required data. Compact Size: 96 x 96 mm DIN Panel > The performance of more than two units have been housed in a space that is less than 1/5 that formerly re- quired. Provides EssentialSophisticated Features > Measurement and diagnosis of vibration is a complex process,...

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? Feature:Insulated ? Capacitance:75 pF/m ? Construction:Shear-type > 1737.5100.5 ? Insulation resistance :1000 M ? Sensitivity:5.0 mV/(m/s > 2 ) 1 dB ѢĦ ? Resonant frequency :25 kHz min. ? Operating temperature range:20 to +110 > ? Cable outer diameter :4.2 mm ѱ 3 dB ? Lateral sensitivity :5% max. ? Material :FEP ? Maximum usable acceleration:700 m/s ? Waterproofing rubber cover :NBR > 2 ? Maximum tolerable shock:5000 m/s ? Sensor connector:TNC > 2 ? Amp connector:CO2 (BNC) ? Operating temperature range:20 to +110 > ? Detector noise:20 V max. ? Drive power supply:0.56 to 2 mA ? Weight:Approx....

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0.5 dB 0.8 Hz to 20 kHz ? Headphone output:AC output for each band *Power consumption: 15 mW into the rated impedance of 24 ѱ 3 dB *DC output: Switchable output for each band Maximum rated output; +5 V > Ω *Connector: 3.5-mm-diameter miniplug ? CAL signal output:160 Hz, 1 V > 5 V Input impedance; 100 k ? ? Number of input channels:1 Signal input:Input switched between an acceleratio pickupwith a built-in amplifier and an external voltage signal. *Acceleration pickup with built-in amplifier: 2 mA/18 VDC sensor power supply (constant current) *External voltage signal: Input voltage; ѢĦ min. *Input...

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Vibration Comparator

Vibration Comparator

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