A. Product Overview

The Metrix Plus VM 8200 Plus Vibration Meter is designed for routine vibration measurement and condition monitoring of industrial rotating machinery. It allows maintenance engineers and technicians to measure three important vibration parameters:

Velocity
Acceleration
Displacement

The instrument uses a high quality piezoelectric accelerometer for accurate and repeatable vibration measurement. It is lightweight, portable and designed for easy on site measurements of rotating equipment.

Periodic vibration measurements can help maintenance personnel identify abnormal operating conditions associated with imbalance, misalignment, bearing wear and other mechanical faults before they develop into more serious equipment problems. 

Key Technical Specifications

Model: Metrix Plus VM 8200 Plus

Product Type: Digital Vibration Meter

Display: 4 digit backlit LCD

Transducer: Piezoelectric accelerometer

Velocity Range: 0.01 to 200.0 mm/s true RMS

Acceleration Range: 0.1 to 200.0 m/s² equivalent peak

Acceleration Imperial Range: 0.3 to 656.2 ft/s² equivalent peak

Displacement Range: 0.001 to 2.000 mm peak to peak

Acceleration Frequency Range: 10 Hz to 10 kHz

Velocity Frequency Range: 10 Hz to 1 kHz

Displacement Frequency Range: 10 Hz to 1 kHz

Accuracy: Plus or minus 5 percent of reading plus 2 digits

Maximum Hold: Available

Low Battery Indication: Available

Analog Output: AC output from 0 to 2.0 V peak full scale

Recommended Analog Output Load Resistance: Above 10 kΩ

Automatic Power Off: User enabled

Power Supply: Four 1.5 V AAA batteries

Operating Temperature: 0 to 50 degrees Celsius

Operating Humidity: Below 90 percent RH

Dimensions: 160 x 68 x 38 mm

Weight: Approximately 181 g 

Standard Accessories

The Metrix Plus VM 8200 Plus is supplied with:

Rare earth magnet
Measurement probe
Cone stinger probe
Ball stinger probe
Carrying case
User manual

A PC interface is available as an optional accessory. 

B. Working Principle

The Metrix Plus VM 8200 Plus Digital Vibration Meter works using a piezoelectric accelerometer.

When a motor, pump, fan or other rotating machine operates, its moving components produce mechanical vibration. The piezoelectric accelerometer senses this mechanical movement and converts it into a proportional electrical signal.

The vibration meter digitally processes this electrical signal and converts it into measurable vibration parameters such as velocity, acceleration and displacement. 

1. Vibration Velocity Measurement

Velocity indicates how fast the vibrating machine surface is moving.

The Metrix Plus VM 8200 Plus measures velocity from:

0.01 to 200.0 mm/s true RMS

The velocity frequency range is:

10 Hz to 1 kHz

Velocity measurement is commonly useful when checking the overall vibration condition of rotating machinery.

2. Vibration Acceleration Measurement

Acceleration represents the rate at which vibration velocity changes.

The meter measures acceleration from:

0.1 to 200.0 m/s² equivalent peak

The acceleration frequency range is:

10 Hz to 10 kHz

The wider acceleration frequency range makes this measurement useful when investigating higher frequency vibration behaviour.

3. Vibration Displacement Measurement

Displacement represents the physical amount of movement occurring during vibration.

The Metrix Plus VM 8200 Plus measures displacement from:

0.001 to 2.000 mm peak to peak

The displacement frequency range is:

10 Hz to 1 kHz

Using velocity, acceleration and displacement together provides maintenance technicians with multiple measurements for evaluating machine vibration. 

C. Why Is the Metrix Plus VM 8200 Plus Used?

Industrial rotating equipment naturally produces vibration during operation. The important factor is whether the vibration level remains consistent or begins changing because of a developing mechanical problem.

The Metrix Plus VM 8200 Plus allows maintenance teams to take periodic vibration measurements and compare machine behaviour over time.

Detect Machine Imbalance

An unbalanced rotating component can cause abnormal vibration.

Regular vibration measurements can help technicians identify changes associated with an out of balance machine condition.

Identify Misalignment

Incorrect alignment between motors, shafts, couplings and driven machinery can produce excessive vibration.

The vibration meter can be used as part of the inspection process when misalignment is suspected.

Monitor Bearing Condition

Bearing wear can cause changes in machine vibration.

Routine vibration measurements can help technicians identify unusual vibration behaviour that may require further bearing inspection.

Predictive Maintenance

Predictive maintenance involves checking actual machine condition rather than waiting for equipment to fail.

Maintenance personnel can periodically record vibration measurements and compare them with previous readings.

If vibration increases significantly, the machine can be investigated before a more serious failure occurs.

Preventive Maintenance

The meter can also be included in scheduled preventive maintenance routines.

Technicians can routinely inspect important equipment such as motors, pumps and fans to monitor their vibration condition.

Machine Condition Monitoring

The VM 8200 Plus provides measurable vibration values instead of relying only on noise, touch or visual inspection.

This helps maintenance teams build a more systematic machine condition monitoring process.

Quality Control

Machine manufacturers and service companies can use vibration measurements during equipment inspection and quality control.

Machine Commissioning

The meter can be used during commissioning to measure vibration after installation or startup of rotating machinery.

Reduce Unexpected Downtime

Early identification of abnormal vibration can help maintenance teams schedule inspection or repair before a developing mechanical problem causes an unexpected breakdown. 

D. Suitable Buyers

The Metrix Plus VM 8200 Plus Vibration Meter is suitable for industrial users responsible for rotating machinery inspection, maintenance and reliability.

Plant Maintenance Engineers

Suitable for engineers responsible for routine inspection and maintenance of industrial machinery.

Predictive Maintenance Teams

Useful for teams that periodically record vibration readings to track changes in machine condition.

Mechanical Maintenance Technicians

Technicians can use the meter when inspecting motors, pumps, fans and other rotating machinery.

Reliability Engineers

Reliability teams can include vibration measurements as part of equipment health monitoring and maintenance planning.

Manufacturing Plants

Factories operating motors, pumps, fans and production machinery can incorporate vibration measurement into regular maintenance programs.

Motor Repair Companies

Motor service centers can use vibration measurements during inspection, servicing and testing.

Pump Maintenance Companies

Pump manufacturers, service providers and maintenance contractors can use the meter to inspect pumps and motor driven pump systems.

HVAC Maintenance Companies

HVAC maintenance teams can use vibration measurement when inspecting motors, fans, blowers and similar rotating equipment.

Industrial Maintenance Contractors

Portable vibration measurement is useful for contractors performing maintenance and condition monitoring at multiple customer sites.

OEM Machine Manufacturers

Machine builders can use vibration measurements for commissioning, testing and quality control of rotating equipment.

Process Industries

Chemical, pharmaceutical, food processing, manufacturing and other industrial facilities operating rotating machinery can use vibration monitoring as part of preventive and predictive maintenance programs.

Frequently Asked Questions

1. What is the Metrix Plus VM 8200 Plus?

The Metrix Plus VM 8200 Plus is a portable digital vibration meter designed for measuring velocity, acceleration and displacement in industrial rotating machinery.

2. What parameters does the VM 8200 Plus measure?

It measures:

Vibration velocity
Vibration acceleration
Vibration displacement

3. What is the velocity measurement range?

The velocity range is 0.01 to 200.0 mm/s true RMS.

4. Does the VM 8200 Plus measure RMS vibration?

Yes. Its velocity measurement is specified as true RMS.

5. What is the acceleration measurement range?

The acceleration range is 0.1 to 200.0 m/s² equivalent peak.

6. What is the displacement measurement range?

The displacement range is 0.001 to 2.000 mm peak to peak.

7. What type of sensor does the VM 8200 Plus use?

It uses a piezoelectric accelerometer for vibration measurement.

8. What is the acceleration frequency range?

The acceleration measurement frequency range is 10 Hz to 10 kHz.

9. What is the velocity frequency range?

The velocity measurement frequency range is 10 Hz to 1 kHz.

10. What is the displacement frequency range?

The displacement measurement frequency range is 10 Hz to 1 kHz.

11. Can the VM 8200 Plus be used as a motor vibration meter?

Yes. It is suitable for routine vibration checks and condition monitoring of industrial motors.

12. Can it be used for pump vibration measurement?

Yes. Pumps are specifically identified as one of the rotating machines suitable for vibration condition monitoring with this instrument.

13. Can the vibration meter be used for industrial fans?

Yes. It can be used for routine vibration inspection of fans and other rotating machinery.