Excellent PLC
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Product Overview
The Bently Nevada 991-25-70-03-05 991 Thrust Sensor is a precision device designed to monitor axial shaft displacement (thrust) in critical rotating machinery. It works in conjunction with 3300 XL Proximity Probes and 991 Series machinery protection systems, providing accurate measurement of thrust position to protect machinery from axial overloads.
Key Features
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Monitors axial shaft displacement (thrust) accurately
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Compatible with 3300 XL Proximity Probes and 991 Series systems
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Compact and durable housing for industrial use
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Provides 4–20 mA output proportional to thrust position
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Easy integration with DCS, PLC, or SCADA systems
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Meets API 670 standards for machinery protection
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Designed for continuous operation in harsh environments
Technical Specifications
| Item | Specification |
|---|---|
| Model Number | 991-25-70-03-05 |
| Series | Bently Nevada 991 Thrust Sensor |
| Input | 3300 XL Proximity Probe system |
| Output Signal | 4–20 mA proportional to thrust position |
| Measurement Type | Axial shaft displacement (thrust) |
| Power Supply | 18–36 VDC |
| Frequency Response | DC to 5 kHz |
| Sensitivity | Configured per API 670 standard |
| Operating Temperature | -35 °C to +85 °C |
| Storage Temperature | -51 °C to +100 °C |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg |
| Mounting | DIN-rail or panel-mounted |
| Compliance | API 670, CE, CSA, ATEX (varies by model) |
Industry Applications
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Power generation: turbines and compressors
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Oil & gas machinery protection
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Petrochemical process machinery monitoring
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Manufacturing equipment protection
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Marine & offshore rotating machinery
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Condition-based maintenance programs
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Industrial automation systems
Advantages
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Provides precise thrust position monitoring for machinery protection
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Integrates seamlessly with 3300 XL Proximity Probes and 991 Series systems
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Rugged design ensures long-term reliability
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Helps prevent axial overloads and reduce unplanned downtime
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Supports predictive maintenance strategies
Frequently Asked Questions (FAQ)
Q1: What is the main function of this thrust sensor?
It measures axial shaft displacement (thrust) and outputs a 4–20 mA signal for monitoring.
Q2: Which systems is it compatible with?
Bently Nevada 3300 XL Proximity Probes and 991 Series machinery protection systems.
Q3: Does it meet API 670 standards?
Yes, it is designed to comply with API 670 machinery protection requirements.
Q4: Can it be integrated with DCS or PLC systems?
Yes, the 4–20 mA output allows direct integration.
Q5: What is the operating temperature range?
-35 °C to +85 °C.
Q6: How is it mounted?
DIN-rail or panel-mounted.
Q7: What is the weight of the sensor?
Approximately 0.43 kg.
Q8: Is it suitable for harsh industrial environments?
Yes, it is designed for rugged conditions and continuous operation.
Q9: What type of measurements does it perform?
Axial shaft displacement (thrust).
Q10: Why choose this sensor?
It ensures precise thrust monitoring, protects machinery from axial overloads, and supports predictive maintenance.
Related Bently Nevada Models
| Model Number | Description |
|---|---|
| 991-25-70-01-05 | 991 Thrust Sensor |
| 991-25-70-02-05 | 991 Thrust Sensor |
| 330104-00-16-10-11-00 | 3300 XL 8 mm Proximity Probe |
| 330104-00-18-10-02-05 | 3300 XL 8 mm Proximity Probe |
| 3500/42M 176449-02 | Proximitor/Seismic Monitor Module |
| 3500/50 141056-01 | Tachometer Module |
Popular Bently Nevada Modules
| Model Number | Description |
|---|---|
| 3500/22M 288055-01 | Transient Data Interface (TDI) Module |
| 3500/42M 176449-02 | Proximitor/Seismic Monitor |
| 3500/32M 149986-02 | Relay Module |
| 330104-00-18-10-02-05 | 3300 XL 8 mm Proximity Probe |
| 330130-045-01-05 | 3300 XL Standard Extension Cable |
