Product Details: Bently Nevada 991-25-70-01-00 is a compact two-wire loop powered Thrust Transmitter, integrating proximitor circuit inside the housing, designed to cooperate with 3300 XL NSv proximity probe for non-contact shaft axial thrust displacement monitoring. This Shaft Axial Displacement Transducer converts the gap variation between probe tip and metal thrust collar into standard 4-20mA analog signal, which can be directly transmitted to DCS, PLC and other plant control systems without extra rack-based monitor modules. The ordering code defines ±25 mils full measurement range, supporting total 7-meter transducer system cable length, and adopts 35mm DIN rail clip mounting structure. It is powered by loop 12~35V DC power supply, and provides built-in transducer fault detection function to identify probe open circuit, short circuit and cable failure, triggering current fault state for system alarm. The transmitter has good temperature stability and linearity, suitable for industrial environments with vibration and electromagnetic interference. Widely used in power generation, petrochemical and heavy industrial fields, this Two-Wire Loop Powered Transmitter monitors small turbines, centrifugal compressors, fans and pumps, detecting abnormal axial thrust of rotor and preventing thrust bearing damage and catastrophic mechanical failure.

Core Attributes:

Brand: Bently Nevada

Model: 991-25-70-01-00

Product Type: Integrated Thrust Transmitter

Measurement Range: ±25 mils (±0.6mm)

Matched Probe: 3300 XL NSv proximity probe

System Cable Length: 7 meters

Power Supply: 12 ~ 35V DC, two-wire loop power

Mount: 35mm DIN rail mount

Features: Integrated proximitor circuit, 4-20mA output, built-in transducer fault detection, compact DIN rail housing