Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| sales@plc-automations.com | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The 3500/42M 140471‑01 module is a high‑precision machinery monitoring unit tailored for critical asset protection. Designed to fit into a rack‑based system, it accepts signals from proximity probes or seismic sensors, processes them in real time, and outputs actionable data to control systems. Its rugged construction supports continuous operation in demanding industrial conditions, ensuring machinery health is constantly monitored.
| Parameter | Details |
|---|---|
| Model | 3500/42M 140471‑01 |
| Input Channels | 4 independent channels |
| Sensor Inputs | Proximity probes, seismic transducers |
| Analog Outputs | 4–20 mA per channel, buffered voltage outputs |
| Signal Processing | True peak, RMS, gap, direct values, harmonic detection (1×, 2×, Not 1×) |
| Update Interval | Approximately 100 ms per channel |
| Communication Interface | Proprietary rack‑bus compatible with modular display and relay units |
| Mounting Format | Fits within one or two slots of rack system |
| Power Draw | Under 5 watts |
| Operating Temperature | –30 °C to +65 °C |
| Storage Temperature | –40 °C to +85 °C |
| Safety Certification | Rated for Zone 2 hazardous area use |
| Dimensions (HxWxD) | 241 mm × 24 mm × 241 mm |
| Weight | 0.45 kg |
This module is widely employed in industrial environments to maintain machine reliability and avoid unplanned outages. Typical applications include:
Monitoring vibration and shaft position in gas and steam turbines
Protecting compressors from rotor imbalance or bearing wear
Overseeing motors and generators in electrical production facilities
Safeguarding centrifugal pumps, fans, and blowers from early-stage mechanical faults
Serving heavy industrial sectors where early fault detection is essential to uptime
The module excels in demanding settings such as energy, petrochemical, manufacturing, marine, and mining, where machinery integrity is critical.
Compact Multi‑Channel Capability: Offers four independent monitoring channels in a slim rack format, maximizing efficiency.
Robust Analysis Tools: Incorporates signal processing such as peak, RMS, gap detection, and harmonic analysis for nuanced diagnostics.
Plug‑and‑Play Integration: Seamlessly connects with rack accessories—displays, relays, communication units—without special hardware.
Designed for Ruggedness: With wide temperature tolerance and hazardous‑area ratings, it is built to endure harsh operational environments.
Low Energy, Low Maintenance: Draws minimal power (< 5 W) and demands only occasional performance checks, not frequent recalibration.
Brand: (Confidential Industrial Monitoring Brand)
Series: 3500 Machinery Protection Module Family
This series embodies a versatile, modular approach to real-time protection of rotating machinery, offering specialized modules for displacement, vibration, speed, phase, and data output monitoring.
| Model | Description | Input Channels | Key Feature | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/42M 140471‑02 | Alternate firmware variant | 4 | Same hardware; alternate tuning | 241 × 24 × 241 | 0.45 |
| 3500/40M 176449‑03 | Basic proximitor module | 4 | Distance-only measurement | 241 × 24 × 241 | 0.44 |
| 3500/44M 140734‑03 | Triple redundant proximitor/seismic | 3 (TMR mode) | High redundancy for reliability | 241 × 24 × 241 | 0.46 |
| 3500/50M 140734‑02 | Tachometer/speed-phase module | 2 | Pulses for speed/phase signals | 241 × 24 × 241 | 0.43 |
| 3500/25M 149369‑02 | Keyphasor phase rotor reference module | 2 | Precise phase reference generation | 241 × 24 × 241 | 0.42 |
| Model | Description | Function | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/22M 138607‑02 | Data interface module | Data relay via rack bus | – | 241 × 24 × 241 | 0.40 |
| 3500/94M 147663‑02 | Operator display interface | Graphical operator dashboard | – | 241 × 48 × 241 | 0.55 |
| 3300 XL Proximitor (8 mm) | Heavy-duty transducer | Displacement/vibration sensing | – | 71 × 25 × 25 | 0.09 |
| 3500/15M Power Module | Rack power supply unit | Supplies power to rack system | – | 241 × 48 × 241 | 0.50 |
| 1900/65A Compact Monitor | Inline monitoring unit | Simple vibration monitor | 2 | 120 × 30 × 110 | 0.35 |
Q1: What types of sensors does this module support?
A1: It supports proximity probes for displacement measurement and seismic transducers for vibration detection.
Q2: How many separate channels can it monitor?
A2: It monitors four independent channels simultaneously, offering broad coverage of rotating machinery.
Q3: What monitoring outputs are available for system integration?
A3: The module provides 4–20 mA analog outputs for each channel and buffered voltage outputs suitable for control systems.
Q4: What signal processing capabilities are included?
A4: It includes true‑peak, RMS, gap, and harmonic (1×, 2×, not‑1×) calculations for detailed analysis.
Q5: Is this unit safe for explosive or hazardous areas?
A5: Yes. It is rated for Zone 2 operation, suitable for areas with occasional flammable atmospheres.
Q6: How much power does it consume?
A6: Less than 5 watts, which helps reduce overall rack power load.
Q7: What are the operating temperature limits?
A7: It reliably functions between −30 °C and +65 °C, handling wide-range environments.
Q8: What type of maintenance does it require?
A8: It requires minimal maintenance—mainly routine checks of signal quality and occasional firmware updates.
Q9: Can the module be hot-swapped while the rack is powered?
A9: No. Rack power must be turned off before insertion or removal to avoid damage.
Q10: Which product series does this belong to?
A10: It is part of the 3500 series, a modular protection family devoted to critical rotating machinery monitoring.
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.