The Bently Nevada 991-25-50-01-05 Thrust Transmitter delivers a 4–20 mA proportional axial displacement signal, integrates a Proximitor Sensor, supports compact installations, and offers diagnostic outputs and reliable performance in high-humidity environments.
Features and benefits
Integrated Proximitor Sensor – No external unit required, simplifying installation.
4–20 mA Output – Provides standard proportional axial displacement signal for control systems.
Diagnostic Terminals – PROX OUT and coaxial connector enable vibration and gap monitoring.
Loop Adjustment – Non-interacting zero and span potentiometers support easy calibration.
Robust Construction – Potted design ensures reliable operation in high-humidity environments.
Flexible Mounting – DIN-rail clips or bulkhead screws for versatile installation.
FAQ
Q1: What type of signal does the 991 Thrust Transmitter provide?
A1: It provides a 4–20 mA proportional axial displacement (thrust) signal for machinery control systems.
Q2: Which proximity probe is compatible with this transmitter?
A2: The 991 is compatible with the Bently Nevada 3300 NSv proximity probe.
Q3: How is the transmitter powered?
A3: It is a 2-wire, loop-powered device, requiring no separate power supply.
Q4: Can it operate in high-humidity environments?
A4: Yes, the potted construction allows operation in 100% condensing humidity.
Q5: What mounting options are available?
A5: It supports DIN-rail clips or bulkhead mounting screws for flexible installation.



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