Mechanic′s Stethoscope

• Model NO.: MS-120

Product Description

Mechanic's Stethoscope
Model: MS-120
 

 

Features

* It can pick up and amplify the weak audio signals via a sensitive piezoelectric sensor, and distinguish the normal/abnormal signal and its location.
* Desined to help locate the source of excess bearing and machine noise easily at low cost.
* Used to quickly locate the source of engine noise such as piston slap, worn gears and bearings, blown gaskets. Also useful tracking down dashboard rattles and squeaks.
 

 

 Specifications

Frequency Range	10Hz~10K Hz
Input Impedance	>20M
Ambient Noise Permitted	100dB
Power Supply	4x1.5V AAA Size(UM-4)Battery
Dimensions	156mmx67mmx28 mm
Weight	270g(Not Including Batteries)
Standard Accessories	Main Unit
	Powerful Rare Earth Magnet
	Sensor
	Probe(Cone)
	Carrying Case
	Manual Book
Optional Accessories	Headset

 

Vibration Standard

ISO/IS2373 Motor Quality Standard According As Vibration Velocity
Quality Rank	Rev ( rpm )	H: high of shaft ( mm ) Maximum vibration rms ( mm/s )
		80<H<132	132<H<225	225<H<400
Normal	600~3600	1.8	2.8	4.5
Good ( R )	600~1800	0.71	1.12	1.8
	1800~3600	1.12	1.8	2.8
Excellent ( S )	600~1800	0.45	0.71	1.12
	1800~3600	0.71	1.12	1.8