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- Bently Nevada
- 3500/42 138700-01
- Shaft Absolute I/O Module
- USA
- 2.6 cm × 25.8 cm × 24.0 cm
- 0.9kg
- Xiamen, China
- New & In Stock
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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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Bently Nevada 3500/42 (138700-01) Detailed Overview
Product Introduction
The Bently Nevada 3500/42 (P/N 138700-01) is a specialized monitoring module in the renowned 3500 Series machinery protection system. This module is designed to process signals from proximity probes and seismic sensors, offering accurate real-time vibration and position monitoring. It plays a crucial role in safeguarding rotating equipment by continuously analyzing shaft displacement, vibration, and seismic activity.
The 3500/42 module integrates seamlessly into the 3500 rack system, providing reliable outputs used for machinery diagnostics and triggering protective alarms. Its modular design and configurable inputs make it ideal for industries demanding high reliability and precise machinery health monitoring.
Brand & Series
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Brand: Bently Nevada
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Series: 3500 Series
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Model: 3500/42
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Part Number: 138700-01
Product Applications
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Continuous vibration monitoring of turbines, compressors, motors, pumps
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Thrust position and differential expansion measurements
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Detection of seismic activity affecting machinery
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Machine condition-based maintenance and predictive analytics
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Providing inputs for protective relay actions and alarms in industrial plants
Product Advantages
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Supports multiple sensor types (proximity probes and seismic sensors) in one module
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High sensitivity and precise measurement for early fault detection
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Modular rack-mount design for easy installation and maintenance
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Robust signal conditioning and filtering capabilities reduce false alarms
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Real-time data output with configurable 4–20 mA recorder signals
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Designed for harsh industrial environments with wide operating temperature range
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Seamless compatibility with other 3500 Series modules for integrated machinery protection
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3500/42 (138700-01) |
| Channels | 4 independent inputs |
| Sensor Types Supported | Proximity probes, seismic accelerometers |
| Input Sensitivity | Configurable (100 mV/mil, 200 mV/mil typical) |
| Frequency Response | 4 Hz to 4 kHz (typical) |
| Output Signals | 4–20 mA recorder output, buffered output |
| Power Consumption | Approx. 7.7 W |
| Operating Temperature Range | -30°C to +65°C |
| Dimensions (HxWxD) | 2.6 cm × 25.8 cm × 24.0 cm |
| Weight | 0.9 kg |
| Output Impedance | ~550 Ω |
| Signal Processing Features | Gap filter, 1X, 2X, Smax filtering |
| LED Indicators | OK, Bypass, TX/RX |
Recommended Related Models (Same Series or Function)
| Model | Function | Key Feature |
|---|---|---|
| 3500/32M | Relay Module (4-channel) | Outputs alarms as relay contacts |
| 3500/33 | Relay Module (16-channel) | High-density alarm relay output |
| 3500/44M | Aeroderivative Turbine Monitor | Specialized for aeroderivative turbines |
| 3500/50 | Tachometer Module | Speed measurement via Keyphasor |
| 3500/45 | Position Monitor | Measures thrust position and expansion |
Popular Models from Same Brand (Bently Nevada)
| Model | Function | Key Specifications |
|---|---|---|
| 3500/22M | Transient Data Interface (TDI) | Communication gateway for 3500 racks |
| 3500/60 | RTD Temperature Monitor | Accepts up to 4 RTD temperature sensors |
| 3500/61 | Thermocouple Monitor | Thermocouple sensor input |
| 3500/65 | High-Density Temperature Monitor | 16-channel temperature input |
| 3500/53 | Overspeed Detection Module | Protects against turbine overspeed |
FAQ (QA Format)
Q1: What is the primary function of the 3500/42 module?
A1: It monitors vibration, shaft position, and seismic activity via proximity and seismic sensors.
Q2: How many input channels does it have?
A2: The module supports 4 independent input channels.
Q3: Can this module handle different sensor types simultaneously?
A3: Yes, it supports both proximity probes and seismic accelerometers.
Q4: What output signals does the module provide?
A4: It provides 4–20 mA recorder outputs and buffered outputs for diagnostics.
Q5: Is it compatible with other 3500 Series modules?
A5: Yes, it integrates with relay modules and communication modules within the 3500 system.
Q6: What is the operating temperature range?
A6: The module operates from -30°C to +65°C, suitable for most industrial environments.
Q7: How does it improve machine protection?
A7: By providing precise and real-time data for vibration and position, it helps detect faults early and prevent failures.
Q8: What does the “Bypass” LED indicator mean?
A8: It indicates that a channel is bypassed and will not trigger alarms or outputs.
Q9: What kind of filtering does it support?
A9: Supports gap filters, 1X and 2X filtering, and peak value (Smax) filters to reduce noise.
Q10: How heavy and large is the module?
A10: It weighs approximately 0.9 kg and measures 2.6 cm x 25.8 cm x 24.0 cm.
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.