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Vibration Meter Data Logger | VSE mk2 – 8g

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The Vibration Meter Data Logger – VSE_mk2 – 8g is a new model in the VSE series of smart vibration datalogers. It can record accelerations, vibrations, velocities and inclinations. It includes a 3-axis MEMS accelerometer, an accurate date/time clock and a non-volatile 128 Mb recording memory. Depending on the settings it can record acceleration or velocity signals and/or RMS levels for months. Its very small size allows it to be attached to, or embedded within, the monitored equipment.

The Vibration Meter Data Logger – VSE_mk2 – 8g model is an evolution of the Vibration Sentry E model.

The VSE_mk2 has the following new features:

  • Can measure, record and trigger on velocity signals, in addition to acceleration signals.
  • Includes an accelerometer with exceptional noise floor (20 times better noise floor than the Vibration Sentry E – 16g).
  • Sampling rates up to 4 kHz.
  • Improved anti-aliasing filter.

 

The VSE_mk2 vibration meter data logger is ideal to monitor very low vibration levels, such as ground tremors and floor vibrations.

VSE_mk2 Applications

  • Building-health monitoring on construction sites.
  • Long-term seismic monitoring.
  • Long-term inclination monitoring.
  • Long-term measurement and recording of acceleration signals, velocity signals, signal statistics (peaks and average) and RMS levels.
  • Continuous monitoring of machinery wear.

Product Description

The Vibration Meter Data Logger – VSE_mk2 – 8g is a new model in the VSE series of smart vibration datalogers. It can record accelerations, vibrations, velocities and inclinations. It includes a 3-axis MEMS accelerometer, an accurate date/time clock and a non-volatile 128 Mb recording memory. Depending on the settings it can record acceleration or velocity signals and/or RMS levels for months. Its very small size allows it to be attached to, or embedded within, the monitored equipment.

The Vibration Meter Data Logger – VSE_mk2 – 8g model is an evolution of the Vibration Sentry E model.

The VSE_mk2 has the following new features:

  • Can measure, record and trigger on velocity signals, in addition to acceleration signals.
  • Includes an accelerometer with exceptional noise floor (20 times better noise floor than the Vibration Sentry E – 16g).
  • Sampling rates up to 4 kHz.
  • Improved anti-aliasing filter.

 

The VSE_mk2 vibration meter data logger is ideal to monitor very low vibration levels, such as ground tremors and floor vibrations.

VSE_mk2 Applications

  • Building-health monitoring on construction sites.
  • Long-term seismic monitoring.
  • Long-term inclination monitoring.
  • Long-term measurement and recording of acceleration signals, velocity signals, signal statistics (peaks and average) and RMS levels.
  • Continuous monitoring of machinery wear.

The VSE_mk2 includes the following features:

  • 3-Axis integral MEMS accelerometer
  • Measures and records:
    • Raw acceleration or velocity signals
    • Acceleration or velocity statistics
    • Vibration or velocity levels
    • Inclinations
  • All-digital design.
  • Integrated oscilloscope function that can show the vibration or velocity signals in real time.
  • Allows the observation of recorded data while the recording is ongoing.
  • Works USB connected for setup and data transfer to PC.
  • Long life internal rechargeable battery that recharges from USB.
  • Self-calibrated using the earth’s gravity as a reference.
  • Observes and records 100% of the acceleration signals (no missed samples).
  • Editable individual custom ID for easier instrument management.
  • Completely sealed weatherproof enclosure.

Specifications

Number of axes

3
Acceleration Sensor

MEMS 3-axes
Dynamic Range

+-8 g
Bandwidth High Limit

Adjustable up to 2 kHz (@ 4 kHz Sampling Rate)
Bandwidth Low Limit

DC (High-Pass Filter Bypass), Adjustable from 10 mHz to Fs/2 (High-Pass Filter On)
Acceleration Noise X-Y Axes (Typical)

Note: Acceleration noise is primarily affected by the sampling rate. The higher the sampling rate, the higher the noise., -82 dBg (80 μg RMS) @ 125 Hz Sampling Rate, -66 dBg (500 μg RMS) @ 4 kHz Sampling Rate
Acceleration Noise Z Axis (Typical)

Note: Acceleration noise is primarily affected by the sampling rate. The higher the sampling rate, the higher the noise., -80 dBg (100 μg RMS) @ 125 Hz Sampling Rate, -64 dBg (600 μg RMS) @ 4 kHz Sampling Rate
Velocity Noise X-Y Axes (Typical)

Note: Velocity noise is primarily affected by the high-pass cutoff frequency. The lower the cutoff frequency, the higher the noise., -94 dB-m/s (20 μm/s RMS) @ 1 Hz High-Pass Cutoff, -103 dB-m/s (7 μm/s RMS) @ 10 Hz High-Pass Cutoff
Velocity Noise Z Axis (Typical)

Note: Velocity noise is primarily affected by the high-pass cutoff frequency. The lower the cutoff frequency, the higher the noise., -92 dB-m/s (25 μm/s RMS) @ 1 Hz High-Pass Cutoff, -101 dB-m/s (9 μm/s RMS) @ 10 Hz High-Pass Cutoff
Inclination Angle Noise

Note: Measured using acceleration average, with a log interval of 1s, with the instrument positioned with the Z axis vertical, and X and Y axes horizontal, 1 E − 3°
Inclination Angle Temperature Stability

Note: Measured using acceleration average, with a log interval of 1s, with the instrument positioned with the Z axis vertical, and X and Y axes horizontal, 0.2° over the temperature range -20 °C to 60 °C
Connectivity

USB
Measurements

Raw Acceleration (g or m/s2), Raw Velocity (m/s), Min, Max and Avg Acceleration values (g or m/s2), Min, Max and Avg Velocity values (m/s), Inclinations, Min, Max and Avg RMS Vibration level (linear or dB, g or m/s2), Min, Max and Avg RMS Velocity level (linear or dB, m/s)
Duty Rate of Signal Capture

100% – No Missed Samples
Spectral Display

3-Axes 1024-point Power Spectrum – dB or Lin Scale
Modes of Operation

Idle (Micro-Power), USB-Connected (Active), Recording (Stand-alone), Auto-Rec – Stand-Alone (Idle when no activity / Recording while activity is present)
Sampling Clock Accuracy

1%
Date-Time Clock Accuracy

30ppm
Calibration

Self-Calibration using the earth's gravity as a reference
Battery Type

Integral Li-Poly – USB-Rechargeable
Recharge Time

2 h 30 (Typical)
Battery Autonomy (Full-Charge)

Up to one year while in Idle, 16 days to 125 days while recording, depending on settings
Battery Life

> 300 Charge/Discharge Cycles
Temperature Range

-20°C to 60°C (-4°F to 140°F)
Recording Memory

Non-Volatile Flash Memory
Recording Memory Capacity

128 Mb, (Ex: can continuously record single-axis raw signals for 17 min @ 4 kHz Sampling Rate), (Ex: can continuously record 3-axes full-statistics levels at 1s intervals for 5 days), (Ex: can continuously record 3-axes full statistics levels a 1min intervals for 10 months.)
Recording/Erasure Cycles

Greater than 100 000
Data Retention

Greater than 20 Years
Dimensions

7.62 x 3.94 x 2.06 cm, (3” x 1.55” x 0.81”)
Construction

Integrally Potted Weather-Proof ABS Enclosure

345.00 $

SKU VSE_mk2 Category

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In stock (can be backordered)

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Software Description Importance Download
Instrument Manager Universal Installer Instrument Management Software Essential Install BEFORE connecting the instrument
Wave Analysis Installer Post-Analysis Tool Optional
Speed & Displacement Installer Post-Analysis Tool Optional
Instrument_Disk_Recorder An application to stream to disk vibration levels and raw acceleration signals Optional
PPV Analysis An application to calculate and display Peak Particle Velocity from acceleration or velocity recorded signals. Optional
VS Response Spectrum An application to calculate SDOF Response Spectra from data recorded by a Vibration Sentry device. Optional
Building Vibration Calculator An application to calculate compliance of recorded vibrations to standards for structural integrity of buildings. Optional
Auto Export An application to automatically export the recorded data to .txt files. Optional
VS_E-200g VS_E-16g VSE_mk2 VSEW_mk2 VSE_mk4 VSEW_mk4
Memory 128 Mb 128 Mb 128 Mb 128 Mb 128 Mb 128 Mb
Dynamic Range +-200g +-16g +-8g +-8g +-8g +-8g
Measures Velocity     * * * *
Open USB protocol         * *
WiFi Reporting       *   *
Email Alarms       *   *
Visual Alarms * *        
Timer Start * * * * * *
High-Precision Trigger with Guaranteed 80 ms Pretrig * * * * * *
Time Zone Aware * * * * * *
Retains Settings Through Reset or Battery Failure * * * * * *
Target Application:
Impacts *          
Shipment Monitoring * *        
Inclinometer   * * * * *
Low-Amplitude Vibrations     * * * *
Ground Vibrations/Construction     * * * *
DIN4150-2         * *
Machine Monitoring   * * * * *
Raw-Signal Recording * * * * * *
Noise Floor X-Y Axes 31 mgRMS @ 100Hz
125 mgRMS @ 3.2 kHz		 2 mgRMS @ 100Hz
10 mgRMS @ 3.2 kHz		 80 μgRMS @ 125Hz
500 μgRMS @ 4 kHz		 80 μgRMS @ 125Hz
500 μgRMS @ 4 kHz		 110 μgRMS @ 125Hz
750 μgRMS @ 4 kHz		 110 μgRMS @ 125Hz
750 μgRMS @ 4 kHz
Noise Floor Z axis 36 mgRMS @ 100Hz
160 mgRMS @ 3.2 kHz		 3.6 mgRMS @ 100Hz
16 mgRMS @ 3.2 kHz		 100 μgRMS @ 125Hz
650 μg-RMS @ 4 kHz		 100 μgRMS @ 125Hz
650 μg-RMS @ 4 kHz		 140 μgRMS @ 125Hz
900 μg-RMS @ 4 kHz		 140 μgRMS @ 125Hz
900 μg-RMS @ 4 kHz