Brand:Bently Nevada PLC Item No.:991-01-XX-01-CN Product Origin:USA Product Dimensions:100.1 x 73.9 x 53.3 mm Product Weight:0.43 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The 991-01-XX-01-CN (284318-01) is a loop-powered thrust sensor designed for axial displacement monitoring in industrial rotating machinery. It converts proximity probe signals into a stable 4–20 mA output for integration into control and protection systems.
Compared with radial vibration transmitters, the 991 series focuses specifically on thrust behavior, making it essential for compressors and turbines where axial position stability is critical to machine safety and performance.
The CN variant typically indicates region-specific configuration and deployment compliance for OEM and industrial automation use.
Technical Specifications
Parameter
Value
Model
991-01-XX-01-CN
Part Number
284318-01
Product Type
Thrust Sensor / Transmitter
Output Signal
4–20 mA
Power Supply
12–35 VDC (loop powered)
Input Type
Bently Nevada proximity probe system
Operating Temperature
-40°C to +85°C
Measurement Type
Axial displacement / thrust monitoring
Accuracy
±1% full scale
Response Time
<1 second
Mounting Type
DIN rail / panel mount
Dimensions
100.1 × 73.9 × 53.3 mm
Weight
0.43 kg (0.95 lb)
Recommended Related Models
Bently Nevada 991-01-XX-01-00 284318-01
Bently Nevada 990-10-XX-01-00 283278-01
Bently Nevada 990-10-XX-01-05 165353-01
Bently Nevada 990-08-XX-01-05 167541-01
Bently Nevada 3300 NSv Proximity Probe System
Popular Related Models
991-01-XX-01-00
991-01-XX-01-05
990-10-XX-01-00
990-08-XX-01-05
990-10-XX-01-05
Applications
The Bently Nevada 991-01-XX-01-CN 284318-01 991 Thrust Sensor Module is designed for high-precision axial displacement and thrust position monitoring in rotating machinery, providing stable signal conversion for protection and condition monitoring systems.
Typical applications include:
Steam turbine thrust position monitoring
Gas turbine axial displacement tracking
Centrifugal compressor thrust bearing protection
Industrial pump axial movement supervision
Gearbox thrust load monitoring
Industrial fan rotor stability control
Critical rotating machinery protection systems
OEM predictive maintenance monitoring systems
Advantages
Dedicated axial thrust measurement for critical machinery protection
Integrated signal conditioning for simplified system architecture
Stable 4–20 mA output for PLC/DCS integration
High resistance to vibration, humidity, and industrial environments
Compatible with Bently Nevada 3300 NSv proximity probe systems
Compact OEM design suitable for control cabinet integration
Built-in NOT OK diagnostic function for fault detection
Long-term stability for continuous industrial monitoring
Technical FAQs
Q1: What is the main function of this device?
A1: It measures axial thrust/displacement in rotating machinery and converts it into a 4–20 mA signal.
Q2: Is it loop-powered?
A2: Yes, it operates as a 2-wire loop-powered transmitter.
Q3: What output signal does it provide?
A3: A standard 4–20 mA analog signal proportional to thrust position.
Q4: What probe system does it use?
A4: It is compatible with Bently Nevada 3300 NSv proximity probe systems.
Q5: What industries use it most?
A5: Power generation, oil & gas, petrochemical, and industrial rotating machinery.
Q6: Can it run continuously?
A6: Yes, it is designed for 24/7 industrial operation.
Q7: Does it include fault diagnostics?
A7: Yes, it includes NOT OK signal and self-diagnostic functionality.
Q8: Is it suitable for harsh environments?
A8: Yes, it is built for high vibration, temperature, and humidity conditions.
Q9: Does it require external signal conditioning?
A9: No, signal conditioning is fully integrated inside the unit.
Q10: Can it connect directly to PLC/DCS systems?
A10: Yes, it integrates directly via 4–20 mA input channels.
