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- Overview
- Specifications
- Description
- Applications
- Maintenance and Troubleshooting
- FAQ
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
Bently Nevada |
Model Number: |
3500/25 149369-01+135473-01 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Product Name |
3500/25 149369-01 + 135473-01 |
|
Type |
Keyphasor I/O Module |
|
Dimensions |
2.5x25.5x12 cm |
|
Weight |
0.32 kg |
|
Power Consumption |
3.2 W (typical) |
|
Input Signal |
Up to two transducer signals (proximity probes or magnetic pickups); +0.8 V to -21.0 V (non-isolated) or +5 V to -11 V (isolated) |
|
Input Impedance |
21.8 kΩ minimum |
|
Buffered Outputs |
Two buffered Keyphasor outputs (front coaxial); two buffered outputs (rear Euro-style connectors) |
|
Output Impedance |
504 Ω maximum (buffered) |
|
Transducer Power Supply |
-24 V DC, 40 mA maximum per channel |
|
Operating Temperature |
-30°C to +65°C (standard); 0°C to +65°C (Internal Barrier I/O) |
|
Storage Temperature |
-40°C to +85°C |
|
Humidity |
95% non-condensing |
|
Front Panel LEDs |
OK LED (fault indication); TX/RX LED (communication with RIM) |
|
Rack Space Requirement |
Main module: 1 half-height front slot; I/O modules: 1 full-height rear slot |
|
Speed/Frequency Input Range |
1 to 1,200,000 cpm (0.017 to 20 kHz) |
|
Speed/Frequency Output Range |
1 to 99,999 cpm (0.017 to 1667 Hz) |
|
Speed Accuracy (Nonprocessed) |
0.017–100 Hz ±1 cpm; 101–500 Hz ±8 cpm; 501–20 kHz ±1% |
|
Speed Accuracy (Processed) |
0.017–60 Hz ±1 cpm; 61–150 Hz ±8 cpm; 151–20 kHz ±1% |
Description
The Bently Nevada 3500/25 149369-01+135473-01 enhanced key phase module provides dual-channel, high-precision phase reference signals for rotating machinery monitoring systems. This module combines signal processing and dual-buffered output functions, making it a key component for real-time vibration analysis and phase triggering in high-speed compressor units and steam turbine generators.
Applications
Steel rolling mills: Used to monitor the speed and phase of the main shaft of large rolling mills, assisting in shaft dynamic balancing analysis and preventing severe vibrations caused by imbalance.
Coal power plants: Integrated into the monitoring system of steam turbine generator sets, providing accurate frequency references for vibration monitoring modules and enabling order tracking analysis.
Oil and gas refineries: Operated in centrifugal compressors or gas turbine units, accurately measuring the speed of high-speed rotating machinery and monitoring overspeed conditions.
Large fertilizer plants: Used for bearing monitoring in ammonia synthesis units, utilizing buffered output signals to connect key phase pulses to portable analyzers for on-site diagnostics.
Mining and processing plants: Deployed at the power end of large hoists or ball mills, utilizing their high-precision frequency response characteristics to ensure the stable operation of heavy-duty equipment.
Maintenance and Troubleshooting
Troubleshooting: If the OK LED is off, verify that the -24 Vdc power supply of the I/O module is properly supplying the sensor. If the signal is unstable, use an oscilloscope connected to the front panel buffer output to check the pulse trigger level.
Maintenance Recommendations: Regularly check the mounting gap between the sensor and the keyway to ensure the input voltage is in the linear range. When replacing the 135473-01 module, ensure the frame is powered off and verify the sensor type setting in the configuration software.
FAQ
Q: What do the front panel LED indicators on the 3500/25 149369-01+135473-01 module represent?
A: OK LED is green in normal state, off in fault; TX/RX LEDs flashing indicate normal communication with RIM.
Q: How do I determine if the key phase input signal is within range for the 3500/25 149369-01+135473-01?
A: Accepts +0.8V to -21.0V; sensor pulse must fall within this range.
Q: What is the function of buffered output on the 3500/25 149369-01+135473-01 system?
A: Provides isolated signal copy for external diagnostics without affecting system monitoring.
Q: What should be checked when replacing the rear module in the 3500/25 149369-01+135473-01 system?
A: Power must be off and sensor type and terminal configuration must match requirements.
Q: Does high temperature affect accuracy of the 3500/25 149369-01+135473-01?
A: No. Operates from -30°C to +65°C with ±1 cpm speed accuracy via temperature compensation.
