AM802

Product Description

The AM802 velocity sensor is specifically designed for casing vibration monitoring in industrial rotating machinery. The sensor employs solid-state piezoelectric elements with built-in integration circuitry, eliminating the need for additional conditioning modules and providing direct output of signals proportional to vibration velocity. These signals can be connected to various industrial monitoring systems for real-time vibration data acquisition.

The sensor features a fully sealed stainless steel housing with excellent shock and corrosion resistance, wide frequency response, excellent linearity, low transverse sensitivity, wide temperature range and long-term stable operation.

With built-in isolated shielding structure, the sensor effectively suppresses ground loop interference and electromagnetic interference, supports long-distance signal transmission and is easy to install. It accurately captures equipment vibration details and effectively reflects unit operating conditions, providing accurate and reliable vibration data for equipment fault warning, condition monitoring and safety protection. Widely used for online vibration monitoring of fans, pumps, motors, compressors and other rotating machinery.

Key Specifications

Electrical Specifications

• Power requirement: 20–30 VDC, constant-current supply, 2–10 mA

• Sensitivity (±10%): 3.94 mV/mm/s

• Maximum range: 0–1270 mm/s peak

• Amplitude nonlinearity: 2% FS

• Frequency response:

        1.5–5,000 Hz (±5%)

        1–7,000 Hz (±10%)

        0.5–14,000 Hz (±3 dB)

• Resonant frequency, mounted, nominal: 30 kHz

• Output impedance: ≤120 Ω

• Bias voltage,nominal: 12 VDC

• Sensing element: Shear-mode PZT

• Vibration limit: 600 g

• Shock limit: 5500 g

• Max electromagnetic sensitivity: 7 × 10⁻⁴ (m/s²)/gauss

  
  

Physical Specifications                                                                                                                                                                   

• Housing material: 316L Stainless Steel

• Weight: 110 g

• Connector: 2 Pin,MIL-C-5015

  
  

Environmental Specifications:

• Operating temperature: -50 °C to 120 °C

• Operating humidity: 5% to 95% RH, non-condensing

  
  

Hazardous Area Approvals:

•  ATEX: 

             II 1G Ex ia IIC T4 Ga

             II 2G Ex db IIC T4 Gb

             II 2D Ex ib IIIC T130 °C Db

              （-40 °C to +80 °C）

• CNEx:       

        Ex ia IIC T6 Ga

        Ex ib IIIC T80 °C Db

• CSA/NRTL/C:

              Ex ia IIC T4

              AEx ia IIC T4

              Class I Division 1, Groups A,B,C,D

              Class II Groups E,F,G; Class III

              T4 @ -40 °C ≤ Ta ≤ +100 °C