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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.
| 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 |
Continuous vibration and displacement monitoring of rotating shafts in turbines, compressors, and generators
Integration into centralized rack-based condition monitoring systems
Shaft orbit, eccentricity, and unbalance detection in high-speed rotating equipment
Used in petrochemical plants, thermal power stations, marine engines, and large-scale machinery
Works in tandem with keyphasor modules and vibration analyzers for comprehensive diagnostics
High Accuracy: Wide dynamic bandwidth preserves signal integrity
Modular Design: Supports hot-swapping, reducing system downtime
Robust Durability: Handles temperature shifts, vibration, and harsh industrial conditions
Compact Size: Fits into standard 3U racks with minimal footprint
Scalable: Expandable to multiple modules for large-scale machinery systems
Brand: (Name redacted as requested)
Series: 3500 Machinery Protection System
| 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 |
| 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 |
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.
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%.
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24-hour after-sales service guarantee team, professional and standardized management service system.