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Important information

Safety precautions

Vibration measurement and balancing involves measurement on rotating machines. 

Keep a safe distance to rotating parts and secure transducers and transducer cables 

from rotating parts. Always follow internal, local and national security 

regulations! When working with weights on the rotor always secure the start 

switch with a locker and also use the emergency switch for double safety. This is 

especially important when the machine is remote controlled. 

VMI International AB takes no responsibility for any accidents on people and 

machines.

VMI International AB and our authorized dealers will take no 

responsibility for damages on machines and plants as the result 

of the use of VIBER X1™ measurements.

Even though great efforts are made to make the information in 

this manual free from errors and to make the information 

complete for the user, there could be items we have missed, 

because of the large amount of information. As a result of this, 

we might change and correct these items in later issues without 

further notice. Also changes in the VIBER X1™ equipment may 

take place that affect the accuracy of the information.

                               

Important information

Safety precautions

Vibration measurement and balancing involves measurement on rotating 

machines. Keep a safe distance from rotating parts. Secure transducers 

and cables from rotating parts. Always follow company, local and national 

security regulations! 

VMI International AB and our authorized dealers will take no

responsibility for either damages on machines and plants or accidents on 

people as the result of the use of 

VIBER X

 

 measurements.

Even though great efforts are made to make the information in

this manual free from errors and to make the information complete for the 

user, there could be items we have missed, because of the large amount of 

information. As a result of this, we might change and correct these items 

in later issues without further notice. Also changes in the 

VIBER X™

 

equipment may take place that affect the accuracy of this information.

Summary of Contents for Viber X

Page 1: ...VIBER X1 Manual ER X1 Manual Ver 1 0 VIBER X...

Page 2: ...or double safety This is especially important when the machine is remote controlled VMI International AB takes no responsibility for any accidents on people and machines VMI International AB and our a...

Page 3: ...cause of the large amount of information As a result of this we might change and correct these items in later issues without further notice Also changes in the VIBER X1 equipment may take place that a...

Page 4: ...domestic standardisation authority This standard is an upgrade of older standards that has been in use for several decades and has a worldwide acceptance as a good judgement for continuous and long l...

Page 5: ...easurement of bearing condition will start The instrument measures instantaneously a bearing condition value in the range between 500 Hz to 20 000 Hz To go back to vibration measurements press the sym...

Page 6: ...Instruments Functions Press the start key and the instrument starts to measure vibration default is 2 maximum frequency range the diodes indicates low and high pass lters setting The instrument will b...

Page 7: ...ments on vertical or horizontal machinery should follow the three perpendicular axes of true vertical How to make good measurements The sensitivity direction of the transducer coincides with the cente...

Page 8: ...ote that in some cases the mass of the transducer may in uence the reading A good rule is to consider readings on surfaces that are lower in mass than 10 times the mass of the transducer All normal me...

Page 9: ...vibration Notice that a reduction of the unbalance from 4 mm s to 1 mm s will reduce the total value from 6 7 mm s to 5 5 mm s 4 4 2 2 5 5 6 7mm How to interpret vibration measurements A user with no...

Page 10: ...hine s stiff body resonance related to the basic running speed of the machine For example a machine supported by rubber or springs have a resonance at low running speeds The machine starts vibrate at...

Page 11: ...s is beyond the scope of this manual Group 3 Pumps with multivane impeller and with separate driver with rated power above 15kW Group 4 Pumps with multivane impeller and with integrated driver with ra...

Page 12: ...and common findings The following is an extraction of part of the old standard ISO 2372 class 4 large machines on flexible foundations with some common findings added Use this simplified list as a fi...

Page 13: ...Press the bearing symbol The instrument measures the bearing condition value Bearing condition value is the RMS value of all high frequency vibrations in the range of 500 Hz to 16 000 Hz Bearing cond...

Page 14: ...lue would also include vibrations from unbalance misalignment etc and not only from bearing vibrations and would therefore be dif cult to interpret If the selected frequency band only includes very hi...

Page 15: ...he frequency range 500 16 000 Hz this can give a high bearing condition value without the bearing being damaged A high bearing condition value can also be indicated if the bearing is poorly lubricated...

Page 16: ...d or overloaded Technical data VIBER X Accelerometer Standard nom 100 mV g Adjusted to the instrument Input amplitude range Max 199 9 mm s Max 19 99 gBC Dynamic range 60 dB 159 16 Hz Frequency range 1...

Page 17: ...E 3 pc of AAA Rechargeable VIBRATION TRANSDUCER The accelerometer VMI 192 has a sensitivity 100mV g 10 MAGNET SUPPORT Length 20mm Diameter 15mm Magnet force about 14kg Note You must avoid to use other...

Page 18: ...ion of conformity VMI declares that the VIBER X is manufactured in conformity with national and international regulations The system complies with and is tested according to following requirements EMC...

Page 19: ...er the warranty period rst contact your distributor you purchased the unit from Warranty disclaimer VMI warrants the products to be free from defects in material and workmanship under normal use and s...

Page 20: ...VMI International AB Sweden www vmiab com...

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