Material
Other, Global universal model
Condition
Other, Global universal model
Task
Other, Global universal model
Mathematical Model
Other, Global universal model
Signal
Other, Global universal model
Customized
Non-Customized
Structure
Other, Global universal model
Operating Temperature
-40℃~+70℃
Relative Humidity
5% - 95% (non-condensing)
Storage Temperature
-55℃~+85℃
Dimensions
100mm × 160mm × 220mm
The BENTLY 330130-085-02-05 is an 8mm proximity probe assembly belonging to the 3300 XL series, playing a crucial role in the condition monitoring of rotating machinery. Its design is closely tailored to the monitoring needs of rotating equipment in industrial sites—ranging from steam turbines and generators to compressors and pump sets—providing robust support for the reliable operation of such equipment.
This proximity probe system mainly consists of a 3300 XL 8mm probe, a 3300 XL extension cable, and a 3300 XL proximitor® sensor. The output voltage of the system is proportional to the distance between the probe tip and the observed conductive surface, enabling accurate static (position) and dynamic (vibration) measurements. It performs exceptionally well, especially in vibration and position measurement applications for hydrodynamic bearing machinery, as well as in key phasing and speed measurement scenarios.
The BENTLY 330130-085-02-05 boasts excellent performance parameters. The probe features an M10 x 1 threaded design without armor, which not only ensures the stability of signal transmission but also adapts to the requirements of different installation spaces. In terms of measurement range, the distance range can be reasonably set through relevant configurations according to actual application scenarios to meet different precision requirements. Its linear error is strictly controlled within an extremely small range, and it has high resolution—capable of sensitively capturing tiny positional changes or vibration fluctuations during equipment operation, thus providing an accurate data foundation for equipment condition assessment.

In terms of environmental adaptability, this product demonstrates strong reliability. It has an operating temperature range covering -40℃ to +70℃, allowing stable operation in both power plants in extremely cold regions and high-temperature metallurgical workshops. The storage temperature range is even wider, from as low as -55℃ to as high as +85℃, meeting the requirements of long-distance transportation and complex storage environments. It has an IP40 protection rating (for the front panel), effectively preventing dust ingress and adapting to dusty environments in industrial workshops. In terms of vibration resistance, it can withstand an acceleration of 10g (10Hz-2000Hz), complying with the IEC 60068-2-6 standard, which effectively resists the impact of the equipment’s own vibration on measurement accuracy. It also exhibits outstanding electromagnetic interference (EMI) resistance: common-mode interference rejection is ≥80dB (250Vpp, 50Hz-60Hz), and differential-mode interference rejection is ≥60dB (20Vpp, 50Hz-60Hz), in line with the EN 61000-6-2 EMC standard for industrial environments. Even in environments with strong electromagnetic interference, such as near power plant generators, it can still ensure the accuracy of measurement data.
From the perspective of physical parameters, its dimensions are 100mm × 160mm × 220mm (length × width × height), compatible with the BENTLY NEVADA 3300 series standard monitoring framework (19-inch cabinet, 1U height), facilitating integration into existing monitoring systems. It weighs approximately 1.2kg, and its lightweight design simplifies the insertion and removal of the module, reducing maintenance difficulty. The power supply is 24V DC ±10%, with a power consumption of ≤5W (under full load), featuring low energy consumption, energy efficiency, and environmental friendliness. Its Mean Time Between Failures (MTBF) is ≥1,000,000 hours (in accordance with the MIL-HDBK-217 standard at 25℃), ensuring extremely high reliability and reducing the risk of production interruptions caused by equipment failures. The recommended calibration cycle is 24 months, and it supports on-site online calibration (no module disassembly required), significantly improving maintenance efficiency and reducing maintenance costs.
In practical applications, for example, in the steam turbine generator set of a thermal power plant, the BENTLY 330130-085-02-05 can monitor the vibration and position status of the rotor in real time and with high precision. When the rotor experiences slight unbalance or abnormal displacement, the probe can quickly capture these changes and transmit signals to subsequent monitoring modules and control systems. A 4-20mA analog signal can be fed back to the DCS system in real time; at the same time, combined with relevant alarm mechanisms, early warnings are triggered promptly to remind maintenance personnel to take measures. This prevents equipment damage accidents caused by the development of faults and ensures the safe and stable operation of the steam turbine generator set.
With its high-precision measurement performance, strong environmental adaptability, convenient system integration features, and high reliability, the BENTLY 330130-085-02-05 has become an indispensable key component in the field of rotating machinery condition monitoring, providing solid guarantees for the safe, stable, and efficient operation of industrial production.