Bently Nevada 3500/50 133388-02+133442-01 Tachometer Module
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 15305023276 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Product Overview
The Bently Nevada 3500/50 Tachometer Module (133388-02 + 133442-01) is a dual-channel speed and phase measurement module designed for use within the Bently Nevada 3500 Machinery Protection System.
This module provides accurate real-time monitoring of rotational speed, phase reference, and acceleration for a wide range of rotating equipment, including turbines, compressors, pumps, and motors.
The front module (3500/50) and rear I/O module (133442-01) work together as a complete unit, delivering precise measurements and protection functions for critical machinery.
It accepts input from magnetic pickups, proximity probes, or TTL-type sensors, processes these signals, and outputs data to the 3500 rack for machine protection and control functions.
Key Features
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Two independent, fully configurable tachometer channels.
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Measures rotational speed (RPM), phase angle, and acceleration.
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Compatible with Bently Nevada Keyphasor® and standard magnetic or proximity sensors.
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Programmable Alert and Danger alarm thresholds.
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Wide speed measurement range suitable for slow and high-speed machinery.
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Modular front and rear design for quick maintenance and replacement.
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High noise immunity and signal conditioning for harsh environments.
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Continuous online monitoring with system integration through the 3500 rack.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 3500/50 (133388-02 + 133442-01) | Dual-channel Tachometer Module with rear I/O |
| Function | Measures rotational speed, phase, and acceleration | Provides protection and control data |
| Number of Channels | 2 channels | Configurable individually as speed or phase monitors |
| Input Type | Magnetic pickup, proximity probe, or TTL signal | Compatible with Keyphasor® sensors |
| Input Signal Range | −24 V to +24 V peak | AC or DC coupled |
| Input Frequency Range | 0.016 Hz to 20 kHz | Supports very low and high-speed machinery |
| Input Impedance | 10 kΩ nominal | Optimized for sensor signal integrity |
| Speed Measurement Range | 1 to 20,000 RPM typical | Configurable for machine application |
| Measurement Accuracy | ±0.01 % of measured speed | High precision for protective systems |
| Phase Measurement Range | 0° to 359.9° | Used for phase and order analysis |
| Alert / Danger Setpoints | Programmable per channel | Provides speed and phase protection thresholds |
| Outputs | 4–20 mA, relay trip, and digital communication | Interfaces with 3500 rack and control systems |
| Power Consumption | Approx. 6.5 W | Typical per module |
| Operating Temperature | −30 °C to +65 °C | Rated for industrial operating conditions |
| Storage Temperature | −40 °C to +85 °C | Non-operating environmental range |
| Rack Requirement | One front slot + one rear I/O slot | Standard 3500 rack configuration |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Standard Bently Nevada module size |
| Weight | Approx. 0.46 kg (1.01 lb) | Lightweight aluminum construction |
| Housing Material | Anodized aluminum alloy | Provides EMI/RFI protection and mechanical strength |
| Compliance | CE, CSA, ATEX | Meets international standards for industrial applications |
| Country of Origin | United States – Minden, Nevada (USA) | Manufactured by Bently Nevada, Baker Hughes |
Bently Nevada 3500/50 133388-02+133442-01 Tachometer Module is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.









