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- Bently Nevada
- 3500/42 138708-01
- Proximitor Seismic Monitor I/O Module
- USA
- 241.3 mm x 24.4 mm x 99.1 mm
- 0.2kg
- Xiamen, China
- New & In Stock
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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.
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1. Product Overview
Model: 3500/42 138708-01
Type: Shaft Absolute I/O Module
Brand: Bently Nevada
Series: 3500 Machinery Protection System
2. Product Introduction
The Bently Nevada 3500/42 138708-01 is a specialized Shaft Absolute I/O module designed for machinery protection and monitoring applications. This four-channel monitoring device is part of Bently Nevada’s renowned 3500 series, providing comprehensive shaft position and speed measurement capabilities.
The module functions as a four-channel monitor that accepts inputs from absolute shaft encoders, conditions the signal to provide various shaft position and speed measurements, and compares the conditioned signals with user-programmable alarms. It communicates essential machine information to both operations and maintenance personnel, aiding in proactive maintenance and operational efficiency.
3. Product Applications
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Power Generation: Monitoring turbines and generators for shaft position and speed accuracy.
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Oil & Gas Industry: Ensuring safe, reliable operation of compressors and pumps by monitoring shaft parameters.
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Petrochemical Industry: Critical machinery monitoring to prevent failures and enhance safety in complex processing plants.
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Water & Wastewater Plants: Monitoring pumps and motors to maintain operational reliability.
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Heavy Manufacturing: Protecting critical rotating assets with real-time shaft position and speed data to prevent mechanical failures.
4. Product Advantages
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Four-Channel Monitoring: Simultaneous monitoring of multiple shaft parameters for comprehensive machinery protection.
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Signal Conditioning: Advanced signal processing for accurate shaft position and speed measurements.
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User-Programmable Alarms: Customizable alarm setpoints for proactive maintenance.
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Explosion-Proof Design: Suitable for hazardous locations with internal terminations.
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Compact and Rugged: Durable construction supports harsh industrial environments.
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Communication Flexibility: RS-485 interface for easy system integration.
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Hot-Swappable: Enables module replacement without shutting down the entire system.
5. Detailed Specifications
| Parameter | Specification |
|---|---|
| Model | 3500/42 138708-01 |
| Input Channels | 4 |
| Input Types | Absolute shaft encoders |
| Output Type | Digital signal output |
| Power Consumption | 10.5 watts |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | Up to 95% non-condensing |
| Dimensions (HxWxD) | 241.3 mm x 24.4 mm x 99.1 mm |
| Weight | 0.20 kg |
| Material | Stainless steel |
| Communication Interface | RS-485 |
| Certifications | UL, CE, ISO 9001 |
6. Related and Popular Models
Related Models (Same Series or Function)
| Model | Input Channels | Sensor Compatibility | Outputs | Notes |
|---|---|---|---|---|
| 3500/42 128229-01 | 4 | Proximity probes, seismic transducers | Digital | Standard I/O module |
| 3500/42M 140734-02 | 4 | Proximity probes, seismic transducers | Digital | Enhanced temperature range |
| 3500/42M 176449-02 | 4 | Proximity probes, seismic transducers | Digital | High vibration environment |
| 3500/42M 135489-01 | 4 | Proximity probes, seismic transducers | Digital | Industrial-grade protection |
| 3500/42M 140734-01 | 4 | Proximity probes, seismic transducers | Digital | Standard I/O module |
Popular Models (Same Brand)
| Model | Input Channels | Sensor Type | Output Type | Application Focus |
|---|---|---|---|---|
| 3500/22 146031-02 | 4 | Temperature sensors | Analog | Temperature monitoring |
| 3500/33 149986-01 | 4 | Temperature sensors | Analog | Critical temperature monitoring |
| 3500/53 133388-01 | 4 | Vibration sensors | Analog | Vibration monitoring |
| 3500/61 163179-02 | 8 | Temperature sensors | Analog | High-channel count temperature |
| 3500/93 135785-01 | 8 | Vibration sensors | Analog | High-channel count vibration |
7. Frequently Asked Questions (QA)
Q1: What sensor types are compatible with the 3500/42 138708-01?
A1: The module supports absolute shaft encoders for shaft position and speed monitoring.
Q2: How many input channels does this module support?
A2: It supports 4 input channels simultaneously.
Q3: What is the operating temperature range for this module?
A3: The operating temperature range is from -30°C to +65°C.
Q4: What communication protocols does this module use?
A4: It uses RS-485 communication, compatible with Modbus RTU protocol.
Q5: Is this module suitable for hazardous locations?
A5: Yes, it includes internal terminations for safe use in classified hazardous locations.
Q6: Can the module be replaced without shutting down the system?
A6: Yes, the module is hot-swappable, allowing maintenance without system downtime.
Q7: What are the physical dimensions and weight of the module?
A7: Dimensions are 241.3 mm height, 24.4 mm width, 99.1 mm depth; weight is approximately 0.20 kg.
Q8: What certifications does the module have?
A8: It complies with UL, CE, and ISO 9001 standards.
Q9: What maintenance is required for the module?
A9: The module requires minimal maintenance, typically routine inspections and functional testing.
Q10: How does this module improve machinery reliability?
A10: By providing precise, continuous monitoring of shaft position and speed, it enables early fault detection and helps prevent unexpected failures.
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.