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Cảm biến đo độ rung tần số thấp SKF CMSS 797L

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MÔ TẢ SẢN PHẨM

Low frequency industrial accelerometer, ring mode, side exit

The CMSS 797L is an industrial accelerometer for higher precision measurements at rotational frequencies as low as 12 r/min These speeds are most commonly found in the following industries:

• Power Generation (Wind Turbines)
• Pulp and Paper
• Petrochemicals

Applications include rotors, rolls and extruders The CMSS 797L combines a high sensitivity (to reveal low amplitude signals) with a narrow band of frequency response The value of the high-pass iltering within the sensor makes it ideal for use in specialized, low speed analysis tasks using portable instruments or at speciic measurement points on on-line systems However, the low-pass iltering makes the CMSS 797L unsuitable as a general purpose accelerometer for rolling element bearing defect detection at more normal rotational speeds.

Features

• Optimal for use with SKF on-line surveillance and protection systems and all portable data collection instruments
• 500 mV/g high sensitivity
• Ultra low-noise electronics for clear signals at very low vibration levels
• Low-pass iltered to attenuate high frequencies
• Hermetically sealed
• ESD protection
• Reverse wiring protection

Speciications

Dynamic

• Sensitivity: 500 mV/g
• Sensitivity precision: ±5% at 24 °C (75 °F)
• Acceleration range: 10 g peak
• Amplitude non-linearity: 1%
• Frequency range:
– ±5%: 0,6 to 850 Hz
– ±10%: 0,4 to 1 500 Hz
– ±3 dB: 0,2 to 3 700 Hz
• Resonance frequency, mounted, nominal: 18 kHz
• Transverse sensitivity: ≤ 7% of axial
• Temperature response: See graph

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