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Bently Nevada 133434-01 Tachometer I/O Module with 2-Channel Non-Isolated Inputs and API 670 Compliant External Terminations
Bently Nevada 133434-01 Tachometer I/O Module with 2-Channel Non-Isolated Inputs and API 670 Compliant External Terminations
3500/50M I/O Module Tachometer I/O Module with External Termination
rotational speed monitoring rotor acceleration measurement
steam turbine speed control Bently Nevada 3500 rack module
Place of Origin:
USA
Brand Name:
Bently Nevada
Model Number:
133434-01
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Product Details
Model:
133434-01
Country Of Origin:
USA
Place Of Shipment:
Xiamen,China
Shipping:
TNT, DHL, FedEx, EMS, UPS
MOQ:
1 Piece
Packaging:
Original New Packaging
Estimated Shipping Size:
2.5x11.2x24.2cm
Weight:
0.4 Kg
Highlight:
3500/50M I/O Module Tachometer I/O Module with External Termination
,rotational speed monitoring rotor acceleration measurement
,steam turbine speed control Bently Nevada 3500 rack module
Payment & Shipping Terms
Minimum Order Quantity
1
Price
66USD
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in stock
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Product Description
Bently Nevada 133434-01 Tachometer I/O Module
| Parameter | Specification |
|---|---|
| Part Number | 133434-01 |
| System Series | Bently Nevada 3500 |
| Module Type | Tachometer I/O Module |
| Compatible Monitor | 3500/50M Tachometer Module |
| Termination Type | External Terminations (ET) |
| Signal Inputs | 2-channel non-isolated (Proximitor or Magnetic Pickup) |
| Input Frequency | 0.017 Hz to 20 kHz (1 rpm to 1,200,000 rpm) |
| Output Signals | Conditioned Keyphasor signals to backplane |
| Mounting | 3500 Rack Rear I/O Slot |
| Operating Temp | -30°C to +65°C (-22°F to +150°F) |
| Storage Temp | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 0% to 95% non-condensing |
Contact Us for Pricing or Technical Support
Contact: Miya Zheng
Email: sales@amikon.cn
WhatsApp: +86 180 2077 6792
Key Applications
- Steam and Gas Turbine Monitoring
The module is extensively used in power plants for precise speed control and overspeed protection. It provides the high-speed response required to trigger safety protocols, ensuring turbines operate within safe design limits during load changes. - Centrifugal Compressor Protection
In oil and gas facilities, this module monitors centrifugal compressors for critical speed thresholds and rotor acceleration. It helps prevent surge conditions and manages the vibration risks associated with passing through critical speeds during startup and shutdown. - Emergency Shutdown (ESD) Systems
As a key component of an API 670 compliant machinery protection system, the 133434-01 acts as a reliable interface for Emergency Shutdown logic. It ensures that any abnormal rotation or reverse rotation is detected instantly to initiate an automated plant trip. - Critical Asset Protection in Heavy Industry
It is applied to industrial rotating machinery across various sectors—including steel mills, water treatment, and chemical processing—to protect high-value assets (pumps, fans, and motors) from mechanical damage caused by excessive speed or acceleration. - Keyphasor® Reference for System-Wide Diagnostics
The module provides a synchronized phase reference (Keyphasor signal) for the entire 3500 rack. This application is vital for advanced diagnostics like shaft centerline plots and orbit analysis, which are used to identify imbalance, misalignment, or bearing wear. - API 670 Compliant Instrumentation
For projects requiring strict adherence to global safety and engineering standards, this I/O module provides the necessary redundancy and signal integrity for API 670 compliant monitoring of critical turbomachinery trains.
Key Features
- High-Precision Dual-Channel Monitoring
This 133434-01 / 3500/50M Tachometer Monitor runs a dual-channel, non-isolated design. In practice, you can connect it to Proximitor sensors or Magnetic Pickups depending on what the machine is using. The frequency range is pretty wide — from 0.017 Hz up to 20 kHz — so it can handle anything from very slow shaft turning during maintenance (around 1 rpm) to extremely high-speed rotating equipment, up to roughly 1,200,000 rpm. That range is usually why it gets picked in mixed industrial setups. - Comprehensive Rotating Machinery Protection
It’s not just a speed monitor. The module also handles reverse rotation detection, which is especially important during startup or shutdown events when things don’t always behave as expected. Rotor acceleration measurement is included as well, so operators can actually see how fast the machine is ramping up, not just the final running speed. That extra layer is often what helps catch abnormal startup behavior early. - External Termination (ET) for Flexible Wiring
Instead of wiring directly into the module, this design uses External Termination (ET) with an ETP block into the 3500 rack. In real field conditions, this makes things less messy. Wiring stays in the termination block, so swapping or servicing the module doesn’t require redoing a lot of field connections. In high-density cabinets, this is usually a big advantage. - Integrated Keyphasor® Signal Conditioning
The raw input signals don’t just pass through — they get conditioned into stable Keyphasor® phase reference signals. Once processed, these signals are shared across the 3500 backplane. That means every module in the rack can stay synchronized in terms of phase and timing, which is critical for vibration analysis and any kind of advanced diagnostics. - API 670 Compliant Reliability
This module is built to meet API 670 standards, so it’s designed for harsh industrial environments. Operating range is typically around -30°C to +65°C, which is why you’ll see it in power plants, refineries, and similar heavy-duty sites. It’s commonly used inside Emergency Shutdown (ESD) systems where reliability is non-negotiable. - Optimized for Critical Assets
Most of the time, it’s installed on high-value rotating machinery like steam turbines, gas turbines, and centrifugal compressors. These machines don’t tolerate speed instability or reverse rotation well, so continuous monitoring is basically mandatory. The module sits in that protection layer to make sure abnormal conditions are caught early. - Seamless 3500 System Integration
It’s designed specifically for the Bently Nevada 3500/50M Tachometer Monitor slot within the 3500 rack system. Configuration is done through 3500/01 software, and it integrates smoothly with the TDI (Transient Data Interface) module. That setup allows data to be pulled for diagnostics and system-level analysis without complicated integration work.
Frequently Asked Questions
Q1: What is the primary function of the Bently Nevada 133434-01 within a 3500 system?
A: In a 3500 rack this 133434-01 basically works as a 2-channel tachometer I/O module for the 3500/50M. It takes signals from Proximitor sensors or magnetic pickups and turns them into usable speed data. Not just RPM reading — it also handles reverse rotation and rotor acceleration, mostly useful during startup or abnormal running conditions.
Q2: Does the 133434-01 support Internal or External Terminations?
A: External Termination only. Wiring goes through an ETP block first, then into the module via cable. In real site work this is usually preferred, because field wiring stays untouched when you swap the module. Saves time, less risk during maintenance.
Q3: Which types of sensors are compatible with the 133434-01 I/O module?
A: Two channels, non-isolated. Works with Proximitor sensors and Magnetic Pickups. Proximitor is more for low speed / zero speed cases like turning gear. Magnetic pickup is for normal running or higher speed machines. So it covers both ends depending on application.
Q4: How does the 133434-01 contribute to API 670 compliant machinery protection?
A: It’s designed around API 670 requirements, so it fits standard turbine and compressor protection systems. Main point is stable speed and phase signal handling in tough environments. That’s why it’s commonly used in ESD systems in power plants and refinery setups.
Q5: Can the 133434-01 provide a phase reference signal to other modules in the rack?
A: Yes. It converts incoming signals into Keyphasor® reference and sends it to the 3500 backplane. Other modules just use it directly. Helps keep timing and phase aligned across the rack, especially useful for vibration monitoring.
Q6: What is the input frequency range supported by the 133434-01?
A: From 0.017 Hz up to 20 kHz. Roughly speaking that’s about 1 rpm on the low end and up to around 1,200,000 rpm on the high end. So it can handle slow turning gear and high-speed turbomachinery in the same module without issue.
Compatible Part Numbers
330180-X0-05
330130-080-00-05
125720-01
990-04-70-02-00
125760-01
330104-15-23-10-02-00
125768-01
330104-19-25-10-11-05
128229-01
330103-00-05-10-02-05
128240-01
330103-00-18-05-02-05
133396-01
330130-045-02-05
146031-01
330101-00-08-05-02-05
330103-00-04-10-02-00
330130-085-00-05
330104-00-06-05-02-00
125388-01
330105-02-12-05-02-00
128275-01/128275-01F 130944-01
330106-05-30-05-02-00
330780-91-00
330106-05-30-10-02-05
330103-00-14-10-01-00
330130-040-00-00
330730-080-02-00
330130-040-01-00
330104-05-13-10-02-00
330180-91-05
3500/23E
3500/20
3500/15E
3500/45 176449-04
136711-01
3500/60
330703-000-040-10-11-00
3500/64M
330705-02-18-10-02-00
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