Wireless Vibration Meter Data Logger 8G – VSEW_mk4_8G

The Vibration Meter Data Logger VSEW_mk4 8g is a new model in the VSE series of smart vibration dataloggers. 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.Features: – Virtual COM port interface that allows configuration and measurements to be read by a custom application- Added filters and settings to support the DIN4150-2 standard directly- WiFi connection can use any open access point if the specified access point is not working- Email alerts can now be sent to multiple addressesApplications: – Building-health monitoring on construction sites.- Compliance to DIN4150-2.- 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.

Specifications

– Number of axes: 3- Acceleration Sensor: MEMS Digital 3-axes- Dynamic Range: +/-8 g- Bandwidth High Limit: Adjustable up to 2 kHz (at 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). Acceleration noise is primarily affected by the sampling rate. The higher the sampling rate, the higher the noise., 110 ug RMS at 125 Hz Sampling Rate, 750 ug RMS at 4 kHz Sampling Rate- Acceleration Noise Z Axis (Typical). Acceleration noise is primarily affected by the sampling rate. The higher the sampling rate, the higher the noise., 110 ug RMS at 125 Hz Sampling Rate, 750 g RMS at 4 kHz Sampling Rate- Velocity Noise X-Y Axes (Typical). Velocity noise is primarily affected by the high-pass cutoff frequency. The lower the cutoff frequency, the higher the noise., 25 um/s RMS at 1 Hz High-Pass Cutoff, 8 um/s RMS at 10 Hz High-Pass Cutoff- Velocity Noise Z Axis (Typical). Velocity noise is primarily affected by the high-pass cutoff frequency. The lower the cutoff frequency, the higher the noise., 30 um/s RMS at 1 Hz High-Pass Cutoff, 10 um/s RMS at 10 Hz High-Pass Cutoff- Inclination Angle Noise: 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 degrees- Inclination Angle Temperature Stability: 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 degrees over the temperature range -20 to 60 C- Connectivity: USB (Virtual Com port interface with open protocol), WiFi- Radio Standard: IEEE 802.11 b/g/n- Radio Certification: FCC, IC, Japan, Korea, CE- 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)- Alarm Emails: Acceleration Signal Threshold (X, Y, Z axis), Velocity Signal Threshold (X, Y, Z axis), RMS Acceleration Level Threshold (X, Y, Z axis), RMS Velocity Level Threshold (X, Y, Z axis), Battery- 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: about 300 Charge/Discharge Cycles- Temperature Range: -20 to 60 C (-4 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 inches)- Weight: 65 g- Construction: Integrally Potted Weather-Proof ABS Enclosure- Ingress Protection (IP) Rating: IP57: Protected against dust and temporary immersion in water