Description
The Bently Nevada 128229-01 is a Proximitor/Seismic I/O module with internal terminations, designed for use with the 3500/42M Proximitor Seismic Monitor. This component facilitates the interface between proximity transducers and the 3500 rack, providing critical vibration and position data for machinery protection.
Product Parameters
- Part Number: 128229-01
- Module Type: I/O Module (Internal Terminations)
- Channel Count: 4-channel capacity per module
- Input Compatibility: Proximitor sensors, Accelerometers, Velomitors
- System Compatibility: Bently Nevada 3500 Series Rack
Product Specifications
- Signal Processing: Supports radial vibration, thrust position, and eccentricty measurements
- Termination Style: Internal (standard terminal blocks)
- Mounting: Rear-mount configuration in the 3500 chassis
- Environmental: Operating temperature range of -30°C to +65°C
- Isolation: 500 Vrms galvanic isolation to prevent ground loops
Application Fields
- Steam and gas turbine vibration monitoring
- Centrifugal compressor protection systems
- Hydroelectric generator shaft expansion tracking
- Critical cooling tower fan diagnostics
Q&A
- Q: Does the 128229-01 include the front-facing monitor card? A: No, this part number specifically refers to the rear I/O module; the 3500/42M monitor card must be purchased separately.
- Q: What is the difference between internal and external terminations? A: Internal terminations (128229-01) allow direct wiring to the module, whereas external versions require an interface cable to a separate terminal strip.
- Q: Can I use this for “Keyphasor” signals? A: No, Keyphasor signals require a dedicated 3500/25 Keyphasor module and its associated I/O.
Selection Requirements
- Confirm if your 3500 rack uses internal or external termination architecture.
- Ensure the I/O module matches the specific version of the 3500/42M monitor (Proximitor vs. Seismic).
- Verify that your transducer types (e.g., 3300 XL 8mm) are compatible with the 42M configuration.
