Bently Nevada 3500/50 136703-01 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 (136703-01) is an integral component of the Bently Nevada 3500 Machinery Protection System, engineered for continuous and accurate measurement of rotational speed, phase reference, and acceleration in critical rotating machinery such as turbines, compressors, and motors.
The 3500/50 module processes signals from magnetic pickups, proximity probes, or TTL-type sensors, converting them into precise speed and phase information for machine protection and control systems. Its robust architecture and proven reliability make it a standard in industrial machinery monitoring applications.
Key Features
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Dual-channel tachometer for independent or redundant monitoring.
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Measures speed (RPM), phase angle, and acceleration.
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Compatible with Keyphasor®, magnetic pickup, and TTL-type sensors.
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Configurable overspeed and underspeed protection thresholds.
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Provides 4–20 mA analog outputs, relay alarms, and digital system data.
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Hot-swappable design allows easy maintenance without disturbing field wiring.
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Full integration with System 1® condition monitoring software.
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Meets global safety and EMC standards.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 136703-01 | 3500/50 Tachometer Front Module |
| System Compatibility | Bently Nevada 3500 Machinery Protection System | Works with 133442-01 rear I/O module |
| Function | Measures shaft speed, phase, and acceleration | Suitable for turbine, compressor, and motor monitoring |
| Number of Channels | 2 independent channels | Each channel configurable for speed or phase |
| Input Type | Magnetic pickup, proximity probe, or TTL sensor | Accepts voltage or current-type pulse signals |
| Input Frequency Range | 0.016 Hz – 20 kHz | Wide range for low- and high-speed machinery |
| Input Voltage Range | ±24 V peak (maximum) | Handles strong signal environments |
| Accuracy | ±0.1% of full scale | High precision across entire speed range |
| Alarm Levels | 2 per channel (Alert and Danger) | Fully programmable alarm thresholds |
| Outputs | 4–20 mA (per channel), relay contacts, digital communication | Routed via rear I/O module |
| Communication | Via 3500 rack backplane to System 1® software | Provides real-time monitoring and data logging |
| Power Consumption | < 5 W typical | Efficient power usage |
| Operating Temperature | −30 °C to +65 °C | Designed for industrial environments |
| Storage Temperature | −40 °C to +85 °C | Safe non-operating range |
| Humidity | Up to 95% non-condensing | Resistant to industrial humidity |
| Mounting Type | 3500 rack slot | Standard 3500 modular design |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Standard 3500 form factor |
| Weight | Approx. 0.35 kg (0.77 lb) | Lightweight aluminum enclosure |
| Housing Material | Aluminum alloy with anodized coating | Corrosion-resistant and durable |
| Compliance | CE, CSA, ATEX (as part of 3500 system) | Meets international safety standards |
| Country of Origin | United States (Minden, Nevada – USA) | Manufactured by Bently Nevada, Baker Hughes |
Bently Nevada 3500/50 136703-01 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.









