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- Bently Nevada
- 3500/42M 128240-01
- Prox/Seismic I/O Module with Internal Terminations
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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Bently Nevada 3500/42M (128240‑01)
Product Introduction
The 3500/42M (128240‑01) is a four-channel Proximitor/Seismic Monitor belonging to Bently Nevada’s renowned 3500 Machinery Protection System. Tailored for industrial machinery guarding, this module accepts signals from proximity probes, velocity transducers, or accelerometers to deliver real-time detection of vibration, shaft displacement, acceleration, and other key diagnostics. Designed for rack-mounted integration, it serves as a critical component in asset protection and condition monitoring infrastructures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/42M (128240‑01) |
| Brand | Bently Nevada (Baker Hughes) |
| Series | 3500 Machinery Protection System |
| Channels | 4 input channels (configurable for vibration or position) |
| Sensor Compatibility | Proximity probes, velocity, seismic, acceleration transducers |
| Measurement Types | Radial vibration, thrust position, acceleration, velocity, eccentricity, etc. |
| Power Consumption | Approximately 7.7 W typical |
| Power Supply | –24 VDC via system backplane |
| Frequency Response | Up to ~30 kHz, configurable filters |
| Accuracy | Typical ±0.33% of full-scale (up to ±1%) |
| Alarm Modes | Two-level alerts (Alert & Danger) per channel |
| Output | 4–20 mA recorder outputs per channel |
| Operating Temp Range | –30 °C to +65 °C |
| Mounting | Full-height slot in 3500 rack |
| Dimensions (H×W×D) | approx. 266 × 72 × 229 mm |
| Weight | approx. 0.91 kg |
| Certifications | CE, CSA, UL, RoHS compliant |
(Specifications inferred from similar model 128229‑01 and related product literature.)
Applications
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Machinery protection for turbines, compressors, pumps, and other rotating equipment
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Real-time condition monitoring via multiple diagnostic parameters
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Integration into fault-analysis platforms like System 1®
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Early detection of bearing, alignment, and imbalance problems
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Compliance with API 670 machinery protection standards
Advantages
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Versatile Monitoring: Captures multiple physical parameters using one module
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High-Frequency Sensitivity: Capable of detailed spectrum analysis
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Dual Alarm Capability: Allows both early alert and trip thresholds
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Compact & Rack-Friendly: Conserves critical rack space in modular systems
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Proven Industrial Ruggedness: Engineered for long-term field resilience
Related Models (Same Series)
| Model | Description |
|---|---|
| 3500/42M (128240‑01) | Four-channel proximitor/seismic monitor (this model) |
| 3500/42M (128229‑01) | Variant with internal termination options |
| 3500/44M | Aeroderivative GT vibration monitor |
| 3500/46M | Hydro turbine vibration & air-gap monitor |
| 3500/45 | Position (axial, expansion) monitor |
Popular Bently Nevada Models
| Model | Description |
|---|---|
| 3500/50M | Tachometer and speed monitor module |
| 3500/32M | Four-channel relay logic module |
| 3500/60 | Six-channel temperature monitor |
| 3500/62 | Process variable (4–20 mA) monitor |
| 3500/70M | Reciprocating compressor impulse/velocity monitor |
FAQ (QA)
Q1: What does this module monitor?
A1: Four channels monitor radial vibration, shaft position, acceleration, velocity, eccentricity, and more.
Q2: Which sensors can be connected?
A2: Compatible with proximity probes, accelerometers, and velocity transducers.
Q3: How accurate is it?
A3: Approximately ±0.33% full-scale (typical).
Q4: Does it support alarms?
A4: Yes—each channel has dual thresholds for Alert and Danger.
Q5: What is the signal output?
A5: 4–20 mA record outputs per channel for DCS/PLC integration.
Q6: What are the power needs?
A6: Typically draws about 7.7 W, powered via –24 VDC from rack bus.
Q7: What size is the module?
A7: Approximately 266 × 72 × 229 mm, weighing 0.91 kg.
Q8: What operating environment can it handle?
A8: Operational from –30 °C to +65 °C, suitable for industrial environments.
Q9: Can I use it with System 1?
A9: Yes—it integrates via rack communications and System 1 platform for diagnostics.
Q10: Where does this module fit in the rack?
A10: Installed in full-height slots of a standard 3500 series rack.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.