991-25-70-01-00 Bently Nevada Thrust Transmitter
Description
The Bently Nevada 991‑series Thrust Transmitter is a specialized sensor/transmitter device intended primarily for measuring axial displacement (thrust movement) in rotating machinery—especially in applications
such as centrifugal air compressors, fans, pumps, or motors where thrust bearing clearance or rotor axial position is of interest.It is a 2‑wire, loop‑powered 4‑20 mA device that accepts a
proximity probe input (commonly the Bently Nevada 3300 NSv series proximity probe plus extension cable) and converts the measured axial displacement
to a standardized current output for machinery control/protection systems.
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FAQ
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Q1: What is the 991 Thrust Transmitter used for?
A1: It is used to measure axial displacement (thrust or shaft axial position) in rotating machinery (e.g., centrifugal compressors, small pumps,
motors, fans) and convert that to a 4‑20 mA output signal for control
or protection systems.
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Q2: What signal output does the 991 provide?
A2: It provides a 4‑20 mA current loop output proportional to the thrust position (axial displacement).
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Q3: What is required in terms of input sensor?
A3: It accepts as input one non‐contact proximity probe (specifically one of
the Bently Nevada 3300 NSv series
probes and extension
cable).
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Inquiry now: miya@mvme.cn
Bently Nevada Hot Series:
3300 XL Proximity Probe
3300 Proximitor Sensor
3500 Power Supply
1900/65A
3500/42 Monitor Module
The 990 Vibration Transmitter
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miya@mvme.cn (click) || 86-18020776792
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