KV-3000 digital vibration meter

KV-3000 digital vibration meterInstrument Features

KV-3000seriesvibration measurementceremonyyesPortable vibration measurement for on-site mechanical vibration measurement and analysis applicationsceremonyIt uses the Fast Fourier Transform（FFT）Transforming time-domain signals into frequency-domain signals for analysis can quickly determine the cause and location of faultsThe instrument incorporates the industrial design concept of the Science and Technology Department, making the operation of the instrument more user-friendly; The 2.4-inch high-definition TFT color screen makes the measurement display clearer; Bluetooth 2.0 wireless communication method makes data transmission more flexible; The characteristics of multiple measurement modes make the instrument more suitable for the work needs of industrial sites, providing customers with more convenience.

KV-3000 digital vibration meterworking principle

This instrument adoptsICP acceleration sensor,Convert vibration signals into electrical signals. By processing and analyzing the input signal, obtain the peak acceleration, true effective value, peak coefficient, velocity effective value, and displacement peak of vibration measurement-Peak values and corresponding measurement values and spectrum lists can be printed out.

KV-3000 digital vibration meterScope of application

This instrument is suitable for conventional vibration measurement, especially vibration measurement in rotating or reciprocating machinery. It can not only measure the acceleration, velocity, and displacement of vibration, but also perform simple fault diagnosis and print output.

The technical performance of this instrument complies with Chinese standardsThe requirements of the sinusoidal excitation method vibration standard in GB 13823.3. It is widely used in fields such as mechanical manufacturing, electricity, metallurgy, and vehicles.

KV-3000 digital vibration meterInstrument parameters and functions

2.1Terminology related to vibration measurement

1. Vibration: An object undergoes reciprocating motion around its equilibrium position when subjected to external forces. Such as tuning fork, pendulum, engine piston, etc.
2. Vibration displacement: The amplitude of the displacement of an object or particle when it vibrates near its equilibrium position. Large displacement refers to amplitude, usingD or S represents.
3. Vibration velocity: The velocity at which an object or particle vibrates, which is the first derivative of displacement with respect to time (dS/dt), i.e. the displacement value per unit time, expressed in V.
4. Vibration acceleration: The vibration acceleration of an object or particle is the second derivative of displacement with respect to time (d2S/d2t) or the first derivative of velocity with respect to time (dV/dt), which represents the change in velocity per unit time, denoted as a.
5. Vibration frequency: The number of times an object or particle vibrates per unit time, represented by f.
6. Point number: The label indicating the location of the measurement point when measuring it sequentially.
7. Inspection: Conduct vibration measurements on multiple measurement points in sequence according to the set route.
8. Warning value: Remind users that the vibration exceeds the safe state value.
9. Alarm value: Remind the user that the vibration has reached a deteriorated state value.
10. Effective value, peak value, peak value-peak value.

KV-3000 digital vibration meterTechnical parameters

1. measurement range

acceleration：（0.1~392）m/s² peak

Speed:（0.01~80）Cm/s (effective value)

Displacement:（0.001~10）Mm (peak to peak value)

b. Frequency range

Acceleration: 10Hz~10kHz

Speed: 10Hz~1kHz

Displacement: 10Hz~500Hz

c. Accuracy

Reference sensitivity: ± 2%

Linear relative error of amplitude: ± 5%

Relative error of frequency response: ± 5%

dTemperature range

-10℃~40℃

e. Humidity range

≤80%RH

f. Display: 2.4-inch TFT dot matrix color screen with 320 * 240 pixels (with LED backlight)

g. Battery: Two AA type nickel hydrogen batteries, charged for 12 hours, continuously measured for 25 hours

h. Dimensions: 150mm (L) * 68mm (W) * 33mm (H)

i. Net weight: 220g (including battery)

2.3Main functions

1. FFT spectrum lines: 2004008001600.

2Anti mixing filtering:5th order low-pass elliptical filter.

3Optional frequency range:10-200HZ， 10-500HZ，10-1KHZ， 10-2KHZ，10-5KHZ，10-10KHZ。

4. AD sampling: 4 channels, 12 bits,tall25.6K sampling frequency.

5Sampling points:512, 1024, 2048, 4096.

6Window functions: rectangular window, Hanning window, Haining window, flat top window.

7Display mode: 2.4-inch TFT high-definition color screen, 320 * 240 resolution, continuously adjustable background light brightness.

8Data interface: Bluetooth 2.0 wireless communication data interface.

9Measurement mode:Mode and Spectrum Mode.

10Perpetual calendar: It can display time information and also add dates to the measured data, making it traceable.

11Storage method: automatic storage, storable99 point numbers, each point can store 50 data points and a spectrum list.

12Measurement units: metric and imperial can be converted to each other.

13Shutdown mode: manual or automatic optional.

14Instrument information: You can view the software version and manufacturer information of the instrument.

15Restore factory settings: When the instrument system is disrupted due to misoperation or other external reasons, users are allowed to restore it to its factory state.

16Power shortage indication:On the instrument screenlower leftcornerThe location,displayBattery level icon, indicating the current battery status.