A. Product Overview

The Metrix Plus VM 8200mkII Digital Vibration Meter is designed for professional vibration measurement and condition monitoring of rotating machinery. It allows maintenance engineers and technicians to measure three important vibration parameters: velocity, acceleration and displacement.

In addition to vibration measurement, the VM 8200mkII also provides RPM measurement from 60 to 99,990 revolutions per minute and frequency measurement from 1 Hz to 20 kHz. These additional measurement functions make it useful for detailed inspection of rotating equipment.

The instrument uses a piezoelectric accelerometer to provide accurate and repeatable measurements. Its sturdy metal construction is designed for rugged industrial use, while the backlit LCD makes readings easier to view during maintenance work.

The meter is particularly suitable for periodic machinery inspections intended to detect conditions such as imbalance, misalignment and other mechanical faults before they develop into more serious equipment problems.

Key Features

Vibration Velocity Measurement
Measures vibration velocity for evaluating overall vibration conditions in rotating machinery.

Acceleration Measurement
Provides acceleration measurement across a wide frequency range of 10 Hz to 10 kHz.

Displacement Measurement
Measures the physical displacement associated with machine vibration.

RPM Measurement
Measures rotational speed from 60 to 99,990 revolutions per minute.

Frequency Measurement
Measures frequency from 1 Hz to 20 kHz.

Piezoelectric Accelerometer
Uses a high quality vibration transducer for accurate and repeatable measurements.

Peak Hold Function
Allows the operator to retain peak measurement values for convenient inspection.

Analog Output
Provides an AC analog output for additional monitoring or analysis requirements.

Backlit LCD Display
Features a 4 digit backlit LCD display for convenient reading.

Rugged Metal Body
Designed for demanding industrial maintenance environments.

Technical Specifications

Model: Metrix Plus VM 8200mkII

Product Type: Digital Vibration Meter

Display: 4 digit backlit LCD

Transducer: Piezoelectric accelerometer

Velocity Range: 0.01 to 400.0 mm/s

Velocity Imperial Range: 0.000 to 16 inch/s

Acceleration Range: 0.1 to 400.0 m/s² equivalent peak

Acceleration Imperial Range: 0.3 to 1312 ft/s² equivalent peak

Displacement Range: 0.001 to 4.000 mm equivalent peak to peak

Displacement Imperial Range: 0.04 to 160.0 mil

RPM Range: 60 to 99,990 revolutions per minute

Frequency Range: 1 Hz to 20 kHz

Acceleration Measurement Frequency Range: 10 Hz to 10 kHz

Velocity Measurement Frequency Range: 10 Hz to 1 kHz

Displacement Measurement Frequency Range: 10 Hz to 1 kHz

Accuracy: Plus or minus 5 percent of reading

Maximum Hold: Peak Hold

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: Two 1.5 V AA batteries

Operating Temperature: 0 to 50 degrees Celsius

Operating Humidity: Below 95 percent RH

Dimensions: 130 x 70 x 30 mm

Weight: Approximately 305 g

Standard Accessories

The Metrix Plus VM 8200mkII is supplied with:

Powerful rare earth magnet
Measurement probe
Cone type stinger probe
Ball type stinger probe
User manual
Batteries
Carrying case

A PC interface is available as an optional accessory.

B. Working Principle

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

When industrial equipment such as a motor, pump or fan operates, rotating and moving components create mechanical vibration. The vibration sensor detects this mechanical motion and converts it into a proportional electrical signal.

The instrument processes this electrical signal digitally and calculates vibration parameters such as acceleration, velocity and displacement.

Acceleration Measurement

Acceleration indicates how quickly vibration velocity is changing.

The VM 8200mkII measures acceleration over a frequency range of 10 Hz to 10 kHz, giving it a wider measurement frequency range than its velocity and displacement modes.

Velocity Measurement

Vibration velocity represents how fast the vibrating component is moving.

The meter provides a velocity measurement range of 0.01 to 400.0 mm/s, with a measurement frequency range of 10 Hz to 1 kHz.

Velocity measurement is particularly useful when evaluating the general vibration condition of rotating machinery.

Displacement Measurement

Vibration displacement represents the amount of physical movement occurring during vibration.

The VM 8200mkII provides a displacement measurement range of 0.001 to 4.000 mm equivalent peak to peak, with a frequency range of 10 Hz to 1 kHz.

RPM Measurement

The meter can measure machine rotational speed from 60 to 99,990 revolutions per minute.

This allows technicians to evaluate rotational speed together with vibration measurements when investigating machine operating conditions.

Frequency Measurement

The VM 8200mkII provides frequency measurement from 1 Hz to 20 kHz, adding another useful parameter for machinery inspection and vibration analysis.

By combining vibration velocity, acceleration, displacement, RPM and frequency measurement in one portable meter, the instrument provides maintenance personnel with multiple measurements for evaluating rotating equipment condition.

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

Industrial machinery naturally produces vibration during operation. The level and characteristics of this vibration can change when mechanical problems begin developing.

The Metrix Plus VM 8200mkII is used to periodically measure these vibration levels so maintenance teams can monitor machine condition and investigate abnormal changes.

Detect Machine Imbalance

An unbalanced rotating component can create excessive vibration.

Periodic vibration measurements can help technicians identify abnormal vibration conditions associated with machine imbalance.

Identify Misalignment

Incorrect alignment between motors, shafts, couplings and driven equipment can result in increased vibration.

The VM 8200mkII can be used as part of the diagnostic process when investigating suspected machine misalignment.

Monitor Bearing Condition

Bearing wear is one of the mechanical conditions associated with abnormal machine vibration.

Regular vibration monitoring can help maintenance personnel identify changing vibration behaviour and determine when further bearing inspection may be necessary.

Predictive Maintenance

Predictive maintenance focuses on monitoring machine condition and performing maintenance when measured data indicates that attention may be required.

Technicians can periodically record vibration measurements and compare them over time.

A significant change in vibration level can indicate that further inspection is required.

Preventive Maintenance

The vibration meter can also be incorporated into scheduled preventive maintenance routines.

Maintenance personnel can periodically inspect critical motors, pumps, fans and other rotating machinery rather than waiting for equipment failure.

Reduce Unexpected Machine Failure

Early identification of abnormal vibration may allow maintenance work to be planned before a developing mechanical problem results in serious equipment damage.

Reduce Industrial Downtime

Unexpected equipment failure can stop a production process.

Regular machine condition monitoring can help maintenance teams identify potential issues earlier and schedule maintenance more effectively.

Verify Machine Operating Condition

The meter provides measurable vibration values instead of requiring maintenance personnel to rely only on sound, touch or visual inspection.

Measure Machine RPM

Because the VM 8200mkII also measures rotational speed, it can be used when RPM information is required together with vibration measurements.

Measure Vibration Frequency

Frequency measurement provides another parameter that technicians can use when inspecting and evaluating rotating machinery.

D. Suitable Buyers

The Metrix Plus VM 8200mkII Digital Vibration Meter is primarily suited to industrial users responsible for machinery maintenance, condition monitoring and reliability.

Plant Maintenance Engineers

Maintenance engineers can use the meter for routine vibration inspection of important production equipment.

Predictive Maintenance Teams

Condition monitoring teams can record vibration measurements periodically and compare readings to identify changes in equipment condition.

Mechanical Maintenance Technicians

Technicians responsible for motors, pumps, fans and other rotating equipment can use the meter during troubleshooting and routine maintenance.

Reliability Engineers

Reliability professionals can include vibration readings in machine health monitoring programs and maintenance planning.

Manufacturing Plants

Manufacturing facilities operating multiple motors, pumps, fans and rotating machines can use vibration measurement as part of their maintenance activities.

Motor Service Centers

Motor repair and service companies can use vibration measurement during inspection, servicing and testing of industrial motors.

Pump Maintenance Companies

Pump manufacturers, service companies and maintenance teams can use the vibration meter when evaluating pumps and motor driven pump systems.

HVAC Maintenance Companies

HVAC systems use motors, fans and blowers that can require vibration monitoring during maintenance.

Industrial Maintenance Contractors

Contractors responsible for mechanical maintenance at customer sites can carry a portable vibration meter for routine machine inspections.

OEM Machine Manufacturers

Machine manufacturers can use vibration measurements during machine testing, commissioning and maintenance evaluation.

Power Plants and Utility Facilities

Facilities operating pumps, motors, fans and other rotating equipment can use vibration measurement as part of equipment condition monitoring.

Process Industries

Chemical plants, pharmaceutical facilities, food processing plants and other process industries operating rotating machinery can use vibration monitoring as part of preventive maintenance programs.

Frequently Asked Questions

1. What is the Metrix Plus VM 8200mkII?

The Metrix Plus VM 8200mkII is a portable digital vibration meter designed to measure velocity, acceleration, displacement, RPM and frequency for industrial rotating machinery.

2. What parameters does the VM 8200mkII measure?

The meter measures:

Velocity
Acceleration
Displacement
RPM
Frequency

3. What is the vibration velocity measurement range?

The velocity range is 0.01 to 400.0 mm/s, or 0.000 to 16 inch/s.

4. What is the acceleration measurement range?

The acceleration range is 0.1 to 400.0 m/s² equivalent peak, or 0.3 to 1312 ft/s² equivalent peak.

5. What is the displacement measurement range?

The displacement measurement range is 0.001 to 4.000 mm equivalent peak to peak, or 0.04 to 160.0 mil.

6. Does the VM 8200mkII measure RPM?

Yes. It measures rotational speed from 60 to 99,990 revolutions per minute.

7. Does it measure vibration frequency?

Yes. The meter provides frequency measurement from 1 Hz to 20 kHz.

8. What type of sensor is used in the VM 8200mkII?

The instrument uses a piezoelectric accelerometer for vibration measurement.

9. What is the acceleration frequency range?

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

10. What is the velocity frequency range?

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

11. What is the displacement frequency range?

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

12. Can the VM 8200mkII be used as a motor vibration meter?

Yes. Motors are one of the main types of rotating machinery for which this vibration meter is suitable.