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- 3500/42M 138708-01
- Shaft Absolute I/O Module with Internal Terminations
- USA
- 241 mm × 24 mm × 241 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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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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Product Overview: 3500/42M 138708‑01
The 3500/42M 138708‑01 module is a rugged, precision‑designed proximitor/seismic monitoring unit tailored for critical rotating machinery protection. It integrates with 3500 rack systems, continuously receiving input from proximity probes or seismic sensors, processing vibration and position data in real time. Built for demanding plant environments, it offers robust diagnostics, reliable signal outputs, and seamless integration into industrial monitoring architectures.
Product Specifications
| Parameter | Details |
|---|---|
| Model | 3500/42M 138708‑01 |
| Input Channels | 4 independent channels |
| Supported Sensors | Proximity probes, seismic transducers |
| Signal Outputs | 4–20 mA outputs, buffered voltage outputs |
| Signal Processing Modes | Peak (True), RMS, Gap, Direct, harmonics (e.g. 1X, 2X), not‑1X detection |
| Response Time | 100 ms per channel |
| Communication Interface | Proprietary rack bus (compatible with 3500 system displays & controllers) |
| Mounting | Single‑slot or dual‑slot within 3500 rack |
| Power Consumption | Less than 5 W |
| Operating Temperature | −30 °C to +65 °C |
| Storage Temperature | −40 °C to +85 °C |
| Certifications | Zone 2 explosion protection ratings |
| Dimensions (HxWxD) | 241 mm × 24 mm × 241 mm |
| Weight | 0.45 kg |
Product Applications
This module is widely deployed to safeguard and monitor critical rotating equipment under continuous operation. Typical use cases include:
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Monitoring gas turbines for early vibration or displacement anomalies
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Safeguarding steam turbines in power generation stations from imbalance or blade cracks
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Protecting centrifugal compressors against bearing or rotor faults
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Overseeing generators and motors in heavy industry to detect misalignment and imbalance
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Monitoring critical pumps and fans for mechanical looseness
Its industrial-grade design supports operations in sectors such as energy, petrochemical, manufacturing, mining, and infrastructure, where early detection prevents escalation of mechanical faults.
Product Advantages
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Multi‑Channel Efficiency: Four discrete inputs in a compact form factor enable high‑density monitoring with minimal rack space.
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Robust Signal Analytics: Offers advanced processing algorithms—peak, RMS, harmonic analysis—that support early fault detection and fine‑grained diagnostics.
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Seamless System Integration: Compatible with display and relay modules, and communicates over the same rack bus, enabling straightforward system expansion.
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Industrial Durability: Wide temperature tolerance, low power draw, and Zone 2 certification ensure reliable performance under harsh field conditions.
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Low Maintenance Operation: Designed for extended field service life, needing only periodic validation rather than frequent recalibration.
Brand & Series
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Brand: (Confidential Machinery Protection Solutions)
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Series: 3500 Machinery Protection Module Line
The 3500 series is known for real‑time, rack‑based protection and monitoring of rotating mechanical assets. Each module specializes in sensors, data acquisition, signal processing, and output handling.
5 Related or Series‑Equivalent Models
| Model | Description | Input Channels | Stand‑Out Feature | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/42M 138708‑02 | Variant of current model | 4 | Same processing, alternate tuning | 241 × 24 × 241 | 0.45 |
| 3500/40M 176449‑03 | Standard proximitor module | 4 | Basic distance measurement | 241 × 24 × 241 | 0.44 |
| 3500/44M 140734‑03 | Redundant proximitor/seismic monitoring | 3 (TMR style) | Triple modular redundancy | 241 × 24 × 241 | 0.46 |
| 3500/50M 140734‑02 | Speed‑phase (tachometer) module | 2 | Phase reference and speed | 241 × 24 × 241 | 0.43 |
| 3500/25M 149369‑02 | Keyphasor module to generate phase pulses | 2 | Phase reference generation | 241 × 24 × 241 | 0.42 |
5 Popular Models from the Same Brand
| Model | Description | Functionality | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/22M 138607‑02 | Data communication interface | Rack data interface | – | 241 × 24 × 241 | 0.40 |
| 3500/94M 147663‑02 | Display interface module | Graphical operator displays | – | 241 × 48 × 241 | 0.55 |
| 3300 XL Proximitor (8 mm) | Rugged displacement sensor | Displacement/vibration | – | 71 × 25 × 25 | 0.09 |
| 3500/15M Power Supply | Rack power supply module | Power for entire rack | – | 241 × 48 × 241 | 0.50 |
| 1900/65A Compact Monitor | Small‑form monitoring unit | Compact vibration monitor | 2 | 120 × 30 × 110 | 0.35 |
Frequently Asked Questions (10 QA)
Q1: What types of sensors are supported by the 138708‑01 module?
A1: It supports both proximity probes and seismic transducers for comprehensive vibration and position sensing.
Q2: What is the main benefit of having four channels?
A2: It allows multiple monitoring points to be tracked with a single module, improving rack density and system efficiency.
Q3: How does it report measurements to the control system?
A3: Via 4–20 mA analog outputs and buffered voltage signals suitable for SCADA or control integration.
Q4: Does it provide advanced diagnostic signal processing?
A4: Yes. It calculates true peak, RMS, gap, direct values, and harmonic frequencies like 1 X and 2 X for in‑depth diagnostics.
Q5: Is it certified for hazardous environment use?
A5: Yes. It is certified for Zone 2, allowing use in areas with occasional flammable atmospheres.
Q6: What power does it consume?
A6: It consumes under 5 W, ensuring low rack power demand.
Q7: What is its operating temperature range?
A7: It operates reliably between –30 °C and +65 °C.
Q8: What maintenance does it need?
A8: Mostly periodic functional checks and firmware updates; it requires minimal routine upkeep.
Q9: Can it be installed or removed while the rack is powered?
A9: No. Power to the rack must be turned off before installing or removing modules.
Q10: To which series does this module belong?
A10: It is part of the 3500 series, a modular protection system for industrial rotating machinery.
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.