ISO2372 Portable Vibration Pen Vibration Meter Used Specially for Velocity Testing Equipment

• After-sales Service: Online
• Warranty: 1 Year
• Mass Scope of Workpiece: <900kg
• Type: Portable Vibration Pen
• Accuracy Grade: 0.001-1.999mm
• Load Way: Electronic Load
• Model NO.: GA-3812
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: About 165g
• Power Source: AC~220V/50Hz
• Transport Package: Plywood Case
• Specification: 152mm× 22mm× 16mm
• Trademark: GONOAVA
• Origin: China
• HS Code: 9024800000
• Production Capacity: 200

Product Description

ISO2372 Portable Vibration Pen Vibration Meter used specially for velocity testing equipment
1.use
Vibration pen is a kind of ultra-small vibration measuring instrument, it can measure vibration acceleration, velocity and displacement three parameters, can measure the machine vibration caused by imbalance, misalignment, loose or bearing gear fault.GA-3812 is small and light, easy to carry, with all-metal shell, excellent anti-interference performance, is an ideal tool for equipment condition monitoring.
ISO2372 Portable Vibration Pen Vibration Meter used specially for velocity testing equipment
2.Features 
GA-3812 measuring vibration pen has the function of high and low frequency dividing, which makes it possible to judge the fault of rolling bearing and gearbox.The high frequency value (HI) and low frequency value (LO) of vibration acceleration were measured respectively and compared. When the high frequency value was less than the low frequency value, it indicated that the vibration was mainly caused by the low frequency. It should be judged according to the speed standard.When the high frequency value is more than 5 times of the low frequency value, it indicates that the vibration is mainly caused by the high frequency. Bearing and gear faults, such as rolling bearing wear and gear tooth breakage, can be considered.
The vibration sources of all kinds of mechanical vibration mainly come from structural design, manufacture, installation, debugging and environment itself.The existence of vibration will inevitably cause structural fatigue damage, parts wear and impact damage and other faults.For low-frequency vibration, the destructive displacement damage of fatigue strength should be considered.For high-frequency vibration above 1KHz, the impact force and resonance failure should be mainly considered.It is proved theoretically that the fatigue of vibration components is proportional to the vibration velocity, the energy produced by vibration is proportional to the square of vibration velocity, and the energy transfer results in wear and other defects.Therefore, no matter from fatigue damage or wear and tear, the speed standard is the most appropriate criterion for judging vibration.
By measuring the vibration speed of the rotating machinery and comparing it with the vibration intensity criterion (10Hz ~ 1kHz) -iso2372 standard, the running state of the equipment can be known.

Product Parameters

ISO2372 Portable Vibration Pen Vibration Meter used specially for velocity testing equipment
3.Technical Specification

Vibration sensor	Integral annular shear type acceleration sensor
Vibration range	acceleration:0.1~199.9m/s2 (peak value) speed:0.1~199.9mm/s (effective value) displacement:0.001~1.999mm (peak-peak value)
accuracy	±5%±2bytes
Vibration frequency range	acceleration:10Hz~1kHz(LO) 1kHz~15kHz(HI) speed: 10Hz~1kHz displacement: 10Hz~500Hz
display	Three position semi-liquid crystal display
Sampling period	1s
Keep function	loose"ON/HOLD"key,The displayed vibration value will be held
power	2bytesLR44/SR44
Battery life	Use continuously for about 5 hours
Power switch	press"ON/HOLD"key,Power on, loosen about 1 minute after the power automatically cut off
Use environment	Temp:0~50ºC Humi:≤90%RH
Volume	152mm×22mm×16mm
Weight	About 165g

4.ISO2372 Machine vibration grading table

Vibration range	ISO2372 Equipment vibration standard
	Equipment category
Unit(mm/s)	Class I	Class II	Class III	Class IV
0.71	A	A	A	A
1.12	B	A	A	A
1.8	B	B	A	A
2.8	C	B	B	A
4.5	C	C	B	B
7.1	D	C	C	B
11.2	D	D	C	C
18	D	D	D	C
28	D	D	D	D

 

Class I	Small equipment below 15KW	A:	good
Class II	15~75KW medium size equipment	B:	acceptable
Class III	Large equipment mounted on a hard foundation	C:	Pay attention to
Class IV	High speed equipment with a speed higher than natural frequency	D:	Don't allow

 

 

 

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