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- Bently Nevada
- 3500/42 140734-02+128240-01
- Proximitor Seismic Monitor I/O Module
- USA
- 165 × 133 × 85 mm
- 1.3kg
- 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.
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.
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Product Overview & Description
The 3500/42M 140734‑02 + 128240‑01 is a dual‑card, rack‑mounted monitoring module crafted for protection of rotating machinery. The 140734‑02 front card processes proximity and seismic sensor signals—capturing radial vibration, axial (thrust) displacement, differential expansion, eccentricity, acceleration, velocity, shaft absolute position, and circular acceptance region measurements. The 128240‑01 rear card offers external termination I/O, enabling flexible field wiring and supporting configurable alarm outputs via relay or digital channels. Together, they form a robust, serviceable protection system with integrated diagnostics, suitable for critical industrial applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3500/42M 140734‑02 + 128240‑01 |
| Brand | (omitted) |
| Series | 3500 Machinery Protection – Proximitor/Seismic Monitor |
| Type | 4‑channel proximitor/seismic monitor with external‑termination I/O |
| Dimensions (mm) | Front card: ≈ 165 × 133 × 85 mm; Rear card: standard rack‑mount depth & width |
| Weight (kg) | Front card: ≈ 1.0 kg; Rear card: ≈ 0.30 kg |
| Input Channels | Four differential channels (~10 kΩ) supporting proximity & seismic sensors |
| Sensor Compatibility | Eddy‑current proximity, velocity, and acceleration transducers |
| Measured Parameters | Vibration, displacement, expansion, eccentricity, shaft absolute, acceleration, velocity |
| Power Consumption | Under 10 W from standard 24 V DC rack power |
| Outputs | Buffered analog outputs; 4–20 mA recorder loops; alarm relay and digital signaling |
| Communication Interface | RS‑485 Modbus RTU; Ethernet/IP optional |
| Operating Range | –40 °C to +70 °C (some specs rated to +85 °C); up to 95 % non‑condensing humidity |
| Construction | Durable, compact enclosure with IP protection for harsh environments |
| Mounting | Rack-mount: hot swappable front card; rear mounted external I/O |
Applications
This module is ideal for protecting heavy-duty rotating machinery such as turbines, generators, compressors, and pumps. It captures key dynamic parameters across multiple domains, enabling early identification of mechanical threats like misalignment, imbalance, thermal expansion, shaft displacement, or bearing degradation. The external termination simplifies wiring in retrofit or new installations. The module integrates seamlessly into distributed control systems, condition-based monitoring networks, and predictive‑maintenance ecosystems.
Advantages
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Comprehensive diagnostics: Combines displacement, vibration, acceleration, velocity, and shaft health in a single unit.
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Excellent clarity and responsiveness: Under 10 W consumption ensures stable, low‑noise signal processing with 4–20 mA loops for precise recording.
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Flexible installation: External I/O allows wiring through conduit or junction boxes—even in difficult-to-access cabinets.
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Robust construction: Resilient enclosure resists moisture, dust, and high heat or cold environments.
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Multi‑modal connectivity: Supports analog, relay, and digital data transfer—tailoring outputs for diverse systems.
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Wide temperature tolerance: Keeps monitoring accurate in extreme climates, from sub‑zero to high industrial heat.
Related Models (Same Series or Closely Related)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/42M + 128229‑01 | Same monitor with internal I/O termination | Similar front + rear ~99 mm | ~1.0 + ~0.20 |
| 3500/42M 135489‑01 | Module with internal barrier‑I/O for hazardous zones | Similar dimensions | Similar |
| 3500/40M 140734‑01 | Proximitor front-only version | Compact front form | ~1.0 |
| 3500/42M 138708‑01 | Shaft‑absolute I/O module with internal wiring | Standard rear size | ~0.3 |
| 3500/42M 140471‑01 | Prox/Velocity with internal termination | Standard | ~0.3 |
Popular Models (Same Brand)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 3500/22M | Transient interface for waveform capture | Standard front size | ~0.9 |
| 3500/32M | Alarm relay module (4‑channel) | Standard front size | ~0.9 |
| 3500/33 | Temperature monitoring module | Standard front size | ~0.9 |
| 3500/50M | Speed detection (tachometer) module | Standard front size | ~0.9 |
| 3500/60 | Multi‑channel temperature variant | Standard front size | ~0.9 |
FAQ (10 Q&A)
-
Q: What functions does the front card (140734‑02) perform?
A: It conditions signals from proximity, velocity, and acceleration sensors—not just detecting vibration, but tracking shafts and dynamic movement. -
Q: What’s the role of the rear card (128240‑01)?
A: It provides external and flexible field wiring termination, alarm interfacing, and communicates with the rack via relay or digital interface. -
Q: What critical parameters are monitored?
A: Vibration, displacement, expansion, eccentricity, acceleration, velocity, and shaft center–related diagnostics. -
Q: How much power does it consume?
A: Under 10 W at 24 V DC, making it energy-efficient for continuous monitoring. -
Q: What are the environmental ratings?
A: Operational from –40 °C to +70 °C (some extend to +85 °C) and handles up to 95 % humidity without condensation. -
Q: What outputs are available for integration?
A: Buffered analog outputs, two 4–20 mA transmitter loops, relays for alarms, and digital communication (Modbus RTU or optional Ethernet/IP). -
Q: What are the module’s size and weight?
A: Front card ≈ 165 × 133 × 85 mm, ~1.0 kg; rear card matches rack depth, ~0.30 kg. -
Q: How durable is it?
A: Encased in sturdy, compact housing with ingress protection—suitable for dusty or humid industrial settings. -
Q: How does external termination help?
A: It allows easier wiring and access without opening rack doors—ideal for retrofits or confined spaces. -
Q: Can this module trigger automated actions?
A: Absolutely. It generates alarms based on programmable thresholds, via either relay contacts or digital outputs for automation.