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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: |
3500/45 140072-04 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Quick Detail
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Rack Space Requirements |
1 full-height rear slot |
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Operating Temperature |
-30°C to +65°C (-22°F to +150°F) |
|
Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
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Humidity |
95% Non-condensing |
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Signal |
Accepts from 1 to 4 signal inputs |
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Power consumption |
7.7 Watts, typical, using Position I/O |
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Input Impedance |
1 MΩ (DC LVDT inputs) 10 kΩ (Proximitor or RPT inputs) 137 kΩ (AC LVDT inputs) 200 kΩ (Rotary Potentiometer inputs) |
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Thrust Sensitivity |
3.94 mV/μm (100 mV/mil) or 7.87 mV/μm (200 mV/mil) |
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Dimension: |
24x25.5x2.5cm |
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Weight: |
0.9kg |
Description
The 3500/45 140072-04 Position Monitor from Bently Nevada™ is a 4-channel instrument designed for automation systems, accepting inputs from proximity transducers, Rotary Position Transducers (RPTs), DC/AC LVDTs, and rotary potentiometers. Each channel conditions signals with input impedances of 10 kΩ (Proximitor/RPT), 1 MΩ (DC LVDT), 137 kΩ (AC LVDT), and 200 kΩ (rotary potentiometer), delivering thrust sensitivity of 3.94–7.87 mV/µm and differential expansion sensitivity of 0.394–0.787 mV/µm. Using the 3500 Rack Configuration Software, operators program axial position, differential expansion, dual ramp, case expansion, and valve position monitoring. The 3500/45 140072-04 Position Monitor drives alerts and alarms for measured variables, consuming 7.7 W per channel while operating in temperatures from -30°C to +65°C. Rack-mounted in one full-height rear slot, this monitor provides precise, real-time position data for machinery automation, ensuring accurate measurement and alarm setpoints within ±0.33% typical full-scale accuracy.
Applications
Monitor Axial and Thrust Positions in Turbines
Use the 3500/45 140072-04 Position Monitor to track turbine axial and thrust positions with Proximitor input impedance of 10 kΩ and thrust sensitivity of 3.94–7.87 mV/µm. Set alarms when thrust measurements exceed programmed thresholds.
Measure Differential Expansion in Heat Exchangers
The 3500/45 140072-04 Position Monitor conditions DC LVDT inputs at 1 MΩ, generating differential expansion signals with 0.394–0.787 mV/µm sensitivity. Alerts can be programmed from 0 to 100% full-scale for mechanical stress monitoring.
Control Valve Positions in Process Plants
The 3500/45 140072-04 Position Monitor monitors rotary potentiometers with 200 kΩ input impedance to achieve ±0.33% full-scale accuracy in valve position measurements. It enables precise automated control and alarm notifications.
Track Dual Ramp Expansions in Compressors
Use the 3500/45 140072-04 Position Monitor to compare dual ramp expansions using AC LVDT inputs at 137 kΩ, supporting predictive maintenance and operational adjustment alerts.
Record Case Expansion in Large Motors
The 3500/45 140072-04 Position Monitor measures case expansion signals, providing real-time data at 7.7 W per channel while operating from -30°C to +65°C, enabling actionable adjustments in motor operations.
Specifications
|
Differential Expansion Sensitivity |
0.394 mV/μm (10 mV/mil) or 0.787 mV/μm (20 mV/mil) |
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Ramp Differential Expansion Sensitivity |
0.394 V/mm (10 mV/mil), 0.787 V/mm (20 mV/mil), 3.937 V/mm (100 mV/mil), or 7.874 V/mm (200 mV/mil) |
|
Thrust and Differential Expansio（Accuracy） |
Within ±0.33% of full-scale typical ±1% maximum |
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Thrust and Differential Expansio（Direct filter Frequency Response） |
-3 dB at 1.2 Hz |
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Thrust and Differential Expansio（Gap filter Frequency Response） |
-3 dB at 0.41 Hz |
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Alarm Setpoints |
Use the 3500 Rack Configuration Software to set alert and danger levels for the direct values measured by the monitor. Alarms are adjustable from 0 to 100% of full-scale for each measured value. However, when the full-scale range exceeds the range of the transducer, the range of the transducer will limit the setpoint. |
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Accuracy of alarm setpoints |
Within 0.13% of the desired value |
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Valve Position Accuracy |
Within ±0.33% of full-scale typical ±1% maximum |
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Valve Position(Direct filter Frequency Response) |
-3 dB at 1.2 Hz |
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Valve Position(Gap filter Frequency Response) |
-3 dB at 0.41 Hz |
Competitive Advantage
Handle Multiple Signal Types in One Monitor
The 3500/45 140072-04 Position Monitor integrates 4 channels supporting Proximitor, RPT, DC/AC LVDTs, and rotary potentiometers, reducing rack space and simplifying system wiring.
Deliver Quantified Alarm Measurements
With thrust sensitivity of 3.94–7.87 mV/µm and differential expansion sensitivity of 0.394–0.787 mV/µm, the 3500/45 140072-04 Position Monitor generates accurate alarms within ±0.33% typical full-scale, ensuring actionable readings.
Program Alarms for Each Measured Variable
The 3500/45 140072-04 Position Monitor allows alert and danger setpoints from 0 to 100% full-scale per variable, enabling precise control over operational thresholds.
Support Real-Time Measurement and Frequency Response
The 3500/45 140072-04 Position Monitor maintains a direct filter frequency response of -3 dB at 1.2 Hz and gap filter response of -3 dB at 0.41 Hz, providing continuous monitoring for automation systems.
