Name: 402.I51 : Uniaxial Piezo Top (Standard)
SKU: 402.I51-6-3-H7
Availability: OutOfStock

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"Piezo like" MEMs IEPE industrial vibration sensor

Where entry-level wireless and MEMS sensors usually offer only ±16 g, 6 kHz frequency response, and 80 µg/√Hz noise, our patented integration of the Analog device ADXL 100X MEMs lines offers a very interesting alternative to the piezoelectric sensor.

	Piezo model 101.51 100 mV/g, ±80g, 30ug/√ Hz 0.5Hz-14 kHz	Entry level MEMs sensor (low cost wireless triaxial sensor) 100 mV/g, ±16g, 80ug/√ Hz DC-6 kHz	Instant Vib model 402 100 mV/g, ±100g, 50ug/√ Hz 0.1Hz-19 kHz
Unbalance, misalignement (speed>180 RPM)	✓	✓	✓
Unbalance, misalignement (speed<180 RPM)	✓ (500 mV/g, 6ug/√ Hz)	✓ (80ug/√ Hz)	✓
Mechanical looseness (harmonics x3 x4 x5 x6)	✓	✓	✓
Bearing analysis (envelope analysis) (1)	✓	X	✓
Lubrification (3)	✓	X	✓
Pole pass frequency (rotor bar cracks analysis) (4)	✓ (500 mV/g, 6ug/√ Hz)	✓	✓
Gear mesh analysis (2)	✓	X	✓
Cavitation in Pumps (5)	✓	X	✓
Electrical faults associated to Variable Frequency Drive and inverters (6)	✓	X	✓
core electric faults; motor rotor bars or eccentricity	✓	✓	✓
Blade Pass Frequencies in High-Speed Fans/Compressors (7)	✓	X	✓

(1) depending on the size and running speed of the monitored bearing,16g dynamic range and a limited 6 kHz frequency range can lead to saturation output. This saturation will provide incorrect diagnostic data, potentially causing misinterpretations of the bearing's condition. For high speed bearing and very early detection 15 kHz frequency response is required.
(2) almost all gear box require frequency response analysis above 6 kHz.
(3) lack of lubrication can increase friction and generate high-frequency signals. Lubrication problem implicates acceleration > 16g even for very simple machine. Moreover for high speed bearings the acceleration span extend to 10 kHz and above.
(4) measurement below 1 Hz along with very low noise sensor (acceleration is very very low below 1 Hz) is usually required.
(5) vapor bubbles in a fluid generates very high frequency. 10kHz and even 20 kHz frequency response is required to detect "broadband Hump" or "White noise" caused by cavitation.
(6) the pulse width modulation switching frequencies of Variable Frequency Drives are typically betweek 4 kHz and 16 kHz. These frequencies can couple into the motor, causing vibration, and may indicate problems with the drive itself, motor insulation breakdown, or bearing damage
(7) the blade pass frequency (number of blades * RPM) and its harmonics can easily extend above 5 kHz. Issues like blade damage, imbalance, or aerodynamic problems will show up at these frequencies.

The InstantVib® IEPE Industrial MEMs accelerometer model 402 is engineered for reliable vibration monitoring in demanding industrial environments. It utilizes the industry-standard ICP/IEPE 2-wire voltage transmission technique, enabling distortion-free transmission of a 20 kHz AC signal over distances up to 100 meters with a 4 mA constant current supply. To eliminate ground loops, the signal ground is isolated from both the mounting surface and the outer case. Its IEPE compatibility allows seamless integration with a wide range of instruments, including FFT analyzers, data acquisition cards, and data collectors. The inclusion of TEDS compatibility further simplifies automatic calibration with these devices. While screw mounting is recommended for the full 20 kHz bandwidth, magnetic mounting is also available for quick medium-frequency measurements below 2 kHz.
We are able to propose you superior performances : Read our VS_402.I51

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