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- Bently Nevada
- 3500/42M 140734-02+135489-02
- Proximitor Seismic Monitor
- USA
- 132 mm (H) × 24.1 mm (W) × 241 mm (D)
- 2.7kg
- Xiamen, China
- New & In Stock
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📘 Product Overview: 3500/42M (140734‑02 + 135489‑02)
Description
The 3500/42M (with component part numbers 140734‑02 + 135489‑02) is a dual-channel proximity probe interface module used in critical machinery protection systems. It accepts raw signals from non-contact eddy-current probes and conditions them into usable vibration and displacement data. The paired component 135489‑02 is typically a system accessory or signal isolation hardware, enhancing module reliability and field performance.
It is part of a modular rack-mount system designed for 24/7 operation in demanding environments such as turbines, compressors, and rotating industrial machinery. The 3500/42M ensures high signal fidelity, system integration compatibility, and robust performance under harsh conditions.
📏 Technical Specifications
| Parameter | Details |
|---|---|
| Model | 3500/42M (140734‑02 + 135489‑02) |
| Dimensions (H × W × D) | 132 mm (H) × 24.1 mm (W) × 241 mm (D) |
| Weight (kg) | Approx. 2.7 kg |
| Input Type | Eddy-current proximity probe input |
| Input Channels | 2 independent channels |
| Signal Bandwidth | 0.1 Hz to ~30 kHz |
| Output Signal | Conditioned analog amplitude & phase |
| Power Supply | ±24 VDC (from rack backplane) |
| Mounting Format | Standard 3U height, 19″ rack, single-slot width |
| Environmental Rating | Industrial-grade: shock, temperature, and vibration resistant |
| Connectors | LEMO-style or equivalent for probes; edge connector for rack integration |
🔧 Applications
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Continuous vibration and displacement monitoring of rotating shafts in turbines, compressors, and generators
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Integration into centralized rack-based condition monitoring systems
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Shaft orbit, eccentricity, and unbalance detection in high-speed rotating equipment
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Used in petrochemical plants, thermal power stations, marine engines, and large-scale machinery
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Works in tandem with keyphasor modules and vibration analyzers for comprehensive diagnostics
💡 Advantages
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High Accuracy: Wide dynamic bandwidth preserves signal integrity
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Modular Design: Supports hot-swapping, reducing system downtime
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Robust Durability: Handles temperature shifts, vibration, and harsh industrial conditions
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Compact Size: Fits into standard 3U racks with minimal footprint
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Scalable: Expandable to multiple modules for large-scale machinery systems
🏷 Brand and Series
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Brand: (Name redacted as requested)
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Series: 3500 Machinery Protection System
🔁 Related Models (Same Series / Similar Functionality)
| Model | Key Specifications |
|---|---|
| 3500/22 | 2-channel vibration sensor module; same rack dimensions; ~2.5 kg |
| 3500/44 | 4-channel proximity input module; wider input capacity; ~3.5 kg |
| 3500/46 | Dual-function module for both displacement and vibration; 4 channels; ~3.8 kg |
| 3500/61 | LVDT input module; 2 channels; ~2.6 kg |
| 3500/MI-TC | 8-channel thermocouple input module; monitors temperature; ~2.2 kg |
🔝 Popular Models from the Same Brand
| Model | Description |
|---|---|
| 1250/42M | Earlier proximity probe interface; 2 channels; legacy compatibility; ~2.3 kg |
| 2300/Grade-A | Portable vibration analyzer; handheld with battery; weight < 1 kg |
| 2300/G | Portable diagnostic unit with display and dual inputs; ~1.2 kg |
| 3500-TIV-CPU | Central rack CPU module; alarm processing, trending, communications; ~4.0 kg |
| 3500/65 | Dual-channel keyphasor (tachometer) input module; rack-mount; ~2.7 kg |
❓ Frequently Asked Questions (FAQ)
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Q: What does the 3500/42M module do?
A: It receives raw signals from proximity probes and converts them into accurate vibration data for monitoring systems. -
Q: How many channels does it support?
A: It supports two independent channels for two separate probes. -
Q: What is the module’s signal bandwidth?
A: It supports a range of approximately 0.1 Hz to 30 kHz. -
Q: What type of probes can I connect?
A: Non-contact eddy-current proximity probes designed for shaft monitoring. -
Q: How does it mount into a rack?
A: It installs into a 3U high, 19-inch standard rack using a single slot. -
Q: Is it field-serviceable?
A: Yes. It can be hot-swapped from a powered rack if designed for that function. -
Q: What are the physical dimensions?
A: Height: 132 mm, Width: 24.1 mm, Depth: 241 mm; Weight: approx. 2.7 kg. -
Q: What is the purpose of the 135489‑02 component?
A: It’s typically used for signal isolation, grounding, or other support hardware to improve system robustness. -
Q: Can it integrate with SCADA or DCS systems?
A: Yes. Its outputs are designed for compatibility with control systems for alarming, trending, and protection. -
Q: Is this product certified for industrial environments?
A: Yes. It is designed to operate reliably in high-temperature, high-vibration, and electrically noisy conditions.