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- Overview
- Quick Detail
- Description
- Applications
- Specifications
- Competitive Advantage
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
Bently Nevada |
Model Number: |
140471-02 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Quick Detail
|
Signal Input |
Accepts 1 to 4 pressure transducer signals |
|
Input Impedance – 3 Wire |
10 kΩ |
|
Input Impedance – 2 Wire |
1.5 MΩ to 3.5 MΩ typical |
|
Dynamic Pressure Sensitivity |
100 mV/psi (1.45 mV/mBar) |
|
Front Panel OK LED |
Indicates monitor operating properly |
|
Front Panel TX/RX LED |
Indicates communication with other 3500 rack modules |
|
Front Panel Bypass LED |
Indicates Bypass Mode active |
|
Front Panel Output Connector |
One coaxial connector per channel, short-circuit protected |
|
Cascade Mode |
Buffered transducer outputs not cascaded |
|
Output Impedance |
550 Ω |
|
Transducer Supply – 3 Wire |
-24 Vdc |
|
Transducer Supply – 2 Wire |
3.3 mA current source @ 22 Vdc nominal |
|
Alert Time Delay |
1 to 60 seconds in 1-second intervals |
|
Dimension: |
2.5x11.2x24.2cm |
|
Weight: |
0.4kg |
Description
The 140471-02 I/O Module is designed for the Bently Nevada 3500/64M Dynamic Pressure Monitor to process bandpass dynamic pressure signals in industrial automation racks. The 140471-02 I/O Module accepts 1 to 4 high-temperature pressure transducer inputs, supporting 3-wire (10 kΩ) and 2-wire (1.5–3.5 MΩ) configurations. Dynamic pressure sensitivity is 100 mV/psi (1.45 mV/mBar), enabling precise pressure fluctuation measurement in turbine and compressor systems.
The 140471-02 I/O Module provides –24 Vdc supply for 3-wire sensors and 3.3 mA @ 22 Vdc nominal for 2-wire sensors. Direct filter options include 5 Hz to 4 kHz in Low Mode and 10 Hz to 14.75 kHz in High Mode. Recorder output is 4–20 mA per channel with 0–600 Ω load and 0 to +12 Vdc compliance. Resolution is 0.3662 µA per bit with ±0.25% error at room temperature. The 140471-02 I/O Module updates in approximately 100 ms and supports alert delays from 1 to 60 s and danger delays from 0.1 s to 60 s, enabling automated alarm and shutdown control.
Applications
Application for Turbine Pressure Monitoring
The 140471-02 I/O Module measures bandpass dynamic pressure from high-temperature transducers in steam and gas turbines. Its 5 Hz–14.75 kHz filter range captures fast pressure fluctuations, allowing automated shutdown if pressure exceeds setpoints.
Application for Compressor Surge Detection
Using 1–4 transducer inputs, the 140471-02 I/O Module monitors compressors for rapid pressure changes. The module’s 100 ms update rate enables real-time detection of surge events and triggers alarm outputs to control systems.
Application for Pump Vibration-Induced Pressure Analysis
The 140471-02 I/O Module converts dynamic pressure signals into 4–20 mA outputs, allowing integration into pump control systems for detecting flow pulsations and pressure spikes.
Application for Multi-Channel Rack Automation Integration
The 140471-02 I/O Module fits a single slot and processes up to 4 transducer inputs, enabling centralized pressure monitoring in industrial automation racks.
Specifications
|
Danger Time Delay |
0.1 second or 1 to 60 seconds in 0.1-second intervals |
|
Dynamic Pressure Direct Filter – Low Mode |
5 Hz to 4 kHz (extends to approx. 5.285 kHz without LP filter) |
|
Dynamic Pressure Direct Filter – High Mode |
10 Hz to 14.75 kHz (fixed low pass) |
|
Recorder Output |
4–20 mA proportional to monitor full-scale; individual output per channel; unaffected by short circuit |
|
Voltage Compliance (Current Output) |
0 to +12 Vdc across load |
|
Load Resistance |
0 to 600 Ω |
|
Resolution |
0.3662 µA per bit; ±0.25% error at room temperature; -0.66% to +0.70% over temperature range |
|
Update Rate |
Approximately 100 ms or less |
Competitive Advantage
Competitive Advantage in Fast Response Pressure Monitoring
With approximately 100 ms update rate, the 140471-02 I/O Module provides near real-time pressure measurements for automated control and safety trips.
Competitive Advantage in Multi-Transducer Input Handling
The 140471-02 I/O Module accepts up to four high-temperature transducer signals, reducing the need for multiple modules in one rack.
Competitive Advantage in High-Resolution Signal Output
The 140471-02 I/O Module provides 0.3662 µA per bit resolution on 4–20 mA outputs, ensuring accurate dynamic pressure data for automation logic and alarm thresholds.
Competitive Advantage in Programmable Alert and Danger Timing
Alert delays of 1–60 s and danger delays of 0.1–60 s allow the 140471-02 I/O Module to trigger alarms and trips with precise timing tailored to operational requirements.
