The Bently Nevada 3500/42 125972-02 is a vibration monitoring module produced by Bently Nevada, which is a key component of the 3500 series mechanical protection system. The specific features are as follows:
Product Function: As a 4-channel monitor, it can process inputs from proximity sensors and seismic sensors, measure vibration, position and acceleration, and set programmable alarms for mechanical protection, providing machine vibration information to operators and maintenance personnel.
Technical parameters:
Input signal: Accepts proximity / speed / acceleration signals.
Sensitivity: Different sensitivity settings are available for measurements such as radial vibration, thrust position, etc., such as radial / thrust / eccentricity of 3.94 mv/µm or 7.87 mv/µm, acceleration of 10 mv/(m/s²), etc.
Frequency response: Radial vibration is 4 Hz – 4 kHz (direct), 0.09 Hz (gap); acceleration / speed is 10 Hz – 30 kHz (unfiltered).
Output: The recorder outputs 4 – 20 mA, with an accuracy of ±0.25% (at room temperature); the buffer output impedance is 550Ω, and the -24 VDC power supply is provided.
Power supply: The working voltage is usually 18 – 30 VDC, with a power consumption of approximately 7.7 W.
Accuracy: The typical accuracy is ±0.33%, with most values having a maximum of ±1%.
Operating temperature: The standard range is -30 °C to + 65 °C, and the barrier I/O range is 0 °C to + 65 °C.
Product features: It possesses high-precision measurement capabilities, supports various sensor types, and has flexible configuration. It features advanced diagnostic functions, which can identify and diagnose mechanical issues, and also supports redundant configuration to ensure reliable system operation. Additionally, it complies with international safety and performance standards such as ATEX and EN 61010 – 1.
Dimensions and weight: The size is approximately 241.3 × 24.4 × 241.8 mm, and the weight is about 0.91 kg.
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