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The Bently Nevada 3500/50M 133442-01 is a dual-channel tachometer and speed monitoring module designed for critical machinery protection in industrial environments. Part of the trusted 3500 Series, this module delivers reliable measurement of shaft speed, direction of rotation, acceleration, and provides keyphasor outputs for machinery condition monitoring and vibration analysis.
Built for rigorous industrial use, this module supports inputs from proximity probes and magnetic pickups, making it adaptable to a wide range of rotating equipment types. It facilitates early detection of overspeed, reverse rotation, zero-speed, and acceleration anomalies, thus helping prevent costly downtime and catastrophic failures.
Brand: Bently Nevada
Series: 3500 Machinery Protection System
Module Type: Tachometer / Speed Monitor (Dual Channel)
| Parameter | Specification |
|---|---|
| Model Number | 3500/50M 133442-01 |
| Function | Dual-channel tachometer (speed, acceleration, direction) |
| Input Channels | 2 |
| Compatible Sensors | Proximity Probes, Magnetic Pickups |
| Keyphasor Output | Yes |
| Alarm Types | Overspeed, Underspeed, Reverse Rotation, Zero Speed, Acceleration |
| Peak Hold Feature | Yes |
| Power Supply | 3500 Rack Backplane |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 0% to 95% non-condensing |
| Dimensions (mm) | 241.3 × 24.4 × 241.8 |
| Weight (kg) | 0.82 kg |
| Certifications | API 670 compatible, CE Compliant |
Turbine speed and direction monitoring
Compressor shaft rotation verification
Motor speed feedback for control and protection
Detection of reverse rotation in pumps and compressors
Acceleration tracking for startup and shutdown sequences
Synchronization with vibration monitoring systems via Keyphasor output
Safety system integration requiring zero speed confirmation
Process control feedback in power plants and refineries
Dual Independent Channels: Monitor two different shafts or provide redundancy for critical machines.
Flexible Sensor Inputs: Works seamlessly with magnetic pickups and proximity probes, suitable for various industrial machinery.
Comprehensive Alarms: Detects overspeed, underspeed, zero speed, reverse rotation, and acceleration abnormalities, allowing for proactive machine protection.
Robust Design: Engineered to operate in harsh industrial environments with wide temperature and humidity tolerance.
Compact & Lightweight: Easy to install in the standard 3500 rack, minimizing footprint and simplifying maintenance.
Peak Hold Capability: Captures maximum speed and event data for diagnostics and troubleshooting.
Keyphasor Output: Provides a synchronized timing signal to other vibration and monitoring modules for enhanced data correlation.
Ease of Configuration: User-friendly setup via dedicated software, reducing commissioning time.
| Model Number | Function | Channels | Sensor Compatibility | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/50M 133388-02 | Tachometer, Dual Channel | 2 | Proximity, Magnetic | 241.3 × 24.4 × 241.8 | 0.82 |
| 3500/50 133388-01 | Tachometer | 2 | Proximity, Magnetic | 241.3 × 24.4 × 241.8 | 0.80 |
| 3500/60 133819-01 | Speed and Phase Monitor | 2 | Pulse Sensors | 241.3 × 24.4 × 241.8 | 0.76 |
| 3500/61 164730-01 | Phase and Speed Module | 2 | Keyphasor, Pulse Sensors | 241.3 × 24.4 × 241.8 | 0.78 |
| 3500/45 135137-01 | Position Monitor | 2 | LVDT, Proximity | 241.3 × 24.4 × 241.8 | 0.78 |
| Model Number | Function | Channels | Sensor Compatibility | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500/22M | Transient Data Interface | 4 | Dynamic Sensors | 241.3 × 24.4 × 241.8 | 0.75 |
| 3500/33 149992-01 | Temperature Monitor | 4 | Thermocouple / RTD | 241.3 × 24.4 × 241.8 | 0.72 |
| 3500/25 125800-01 | Keyphasor Module | 1-2 | Proximity Probes | 241.3 × 24.4 × 241.8 | 0.74 |
| 3500/60 133819-01 | Speed and Phase Module | 2 | Magnetic / Pulse Sensors | 241.3 × 24.4 × 241.8 | 0.76 |
| 3500/45 135145-01 | Position Monitor | 2 | LVDT / Proximity | 241.3 × 24.4 × 241.8 | 0.78 |
Q: What is the main purpose of the 3500/50M 133442-01?
A: It monitors speed, acceleration, and direction of rotating machinery with dual independent channels.
Q: How many input channels does this module have?
A: The module supports two independent input channels.
Q: What types of sensors can be used with this module?
A: Proximity probes and magnetic pickups are compatible.
Q: Does the module provide a Keyphasor output?
A: Yes, it outputs a conditioned Keyphasor signal for synchronization.
Q: What alarms does this module support?
A: Overspeed, underspeed, reverse rotation, zero speed, and acceleration alarms.
Q: What is the operating temperature range?
A: It operates reliably between -30°C and +65°C.
Q: How is the module powered?
A: It is powered via the 3500 rack backplane.
Q: Can it be used in hazardous environments?
A: Certain configurations may meet hazardous location requirements; refer to certification specifics.
Q: What is the module’s size and weight?
A: Dimensions are 241.3 × 24.4 × 241.8 mm, weight is approximately 0.82 kg.
Q: How do I configure this module?
A: Configuration is performed through specialized 3500 series software tools.
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.
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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%.
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24-hour after-sales service guarantee team, professional and standardized management service system.