330101-00-28-10-02-CN | Bently Nevada Proximity Probes

Bently Nevada's 330101-00-28-10-02-CN is an 8mm eddy current proximity probe in the 3300 XL series. The following is a detailed analysis:

Model Meaning

330101: Fixed prefix, representing the 3300 XL series 8mm eddy current probe body.

Position A "00": Indicates that the unthreaded length is 0.0 inches, that is, the probe housing has no additional threaded section, which is a standard design.

Position B "28": The total length of the probe housing is 2.8 inches (about 71.12mm).

Position C "10": The total length of the probe (including cable) is 1.0 meters (3.3 feet).

Position D "02": The connector type is a micro coaxial ClickLoc connector, with standard cable configuration.

Position E "CN": It may be a specific product version, configuration option or customer customization code. For the specific meaning, please refer to Bently Nevada's product manual or consult the manufacturer.

Product Features

High-precision measurement: Based on the eddy current effect, it can accurately measure the displacement change of the metal surface in a non-contact manner. The linear measurement range is generally 0-2mm, the output voltage is -20V to -4V DC (typical value), and the linearity error is ≤1%, which can meet the requirements of high-precision vibration and shaft displacement monitoring.

Good environmental adaptability: The probe shell is made of AISI 303 or 304 stainless steel, with a protection level of IP65, and has good corrosion and wear resistance. The probe tip is polyphenylene sulfide (PPS), which has good insulation and high temperature resistance. The outer layer of the cable is made of wear-resistant PVC or Teflon, and the internal coaxial shielding design has strong anti-electromagnetic interference ability and low signal transmission attenuation rate. The operating temperature range of the probe body is -30℃ ~ +177℃, and the cable temperature range is -55℃ ~ +125℃, which can adapt to harsh industrial environments.

Application scenarios

It is mainly used for the condition monitoring of industrial rotating machinery, such as shaft system monitoring of steam turbines, compressors, fans, pumps and other equipment. It can measure radial vibration, axial displacement, rotor eccentricity, key phase and other parameters, which helps to timely discover potential equipment failures and ensure the safe and stable operation of the equipment.

Installation precautions

During installation, make sure that the probe is perpendicular to the metal surface to be measured. The initial gap is generally set to about 1.0mm (midpoint of the linear range) to avoid exceeding the range of 0.2-1.8mm to prevent signal distortion.

It must be used with the 3300 series preamplifier and the same specification extension cable, and the three parts of the system (preamplifier, probe, extension cable) must have the same electrical length, and the total length generally does not exceed 30 meters to ensure impedance matching and signal integrity.