

Bently Nevada 3500/50 133388-02 Tachometer Module 100% New and Original
The Bently Nevada 133388-02 is a tachometer module for the Bently Nevada 3500 Series machinery protection platform. Input Compatibility: Accepts input from proximity probes or magnetic pickups | Peak Hold: Stores highest speed, highest reverse speed, and number of reverse rotations | Reset Capability: Able to reset the peak values. Factory-sealed, tested on live rack with 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| Type | Tachometer Module |
|---|---|
| Channels | 2-channel module |
| Input Compatibility | Accepts input from proximity probes or magnetic pickups |
| Peak Hold | Stores highest speed, highest reverse speed, and number of reverse rotations |
| Reset Capability | Able to reset the peak values |
| Signal Processing | Supplies conditioned Keyphasor signals to the backplane of the 3500 rack |
| Dimensions (Height x Width x Depth) | 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in). |
| Weight | 0.82 kg (1.8 lb.). |
| Versatile Signal Acquisition | Works with proximity probes or magnetic pickups |
| Data Processing | Continuously processes data to determine shaft rotative speed, rotor acceleration, and rotor direction |
| Alarm Generation | Compares measurements against user-programmable alarm setpoints and generates alarms when setpoints are violated |
| Manufacturer | Bently Nevada |
| Model / SKU | 133388-02 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Why the Bently Nevada 133388-02 Matters for Your Operation
In water treatment, every component in your control system has a specific job — and when one fails, the ripple effects can shut down an entire production line. The Bently Nevada 133388-02 is a tachometer module that keeps your municipal water pumping and filtration control running without interruption.
Here is what this module actually does. type: Tachometer Module; channels: 2-channel module; input compatibility: Accepts input from proximity probes or magnetic pickups; peak hold: Stores highest speed, highest reverse speed, and number of reverse rotations. These are not generic specifications — they determine whether this module will work in your specific Bently Nevada system. We have seen too many cases where a maintenance team ordered a replacement only to find it was the wrong revision or configuration. That is why we test every 133388-02 on a live Bently Nevada rack before shipping — full signal injection across every channel, not just a visual check.
Installation matters too. The most common cause of DOA reports is not a defective module — it is bent backplane pins from forcing a module in at the wrong angle. Take your time lining up the guides. Apply even pressure. If it does not slide in smoothly, stop and check the alignment. Always wear a grounded wrist strap — static discharge from removing a fleece jacket in a dry treatment facility can exceed 15,000 volts, destroying sensitive input protection diodes instantly.
Think about your sparing strategy. A single Bently Nevada 133388-02 costs a fraction of what one hour of unplanned downtime costs in water treatment. We ship replacements within 24 hours from Shenzhen — but even 24 hours is too long if you are losing production. For critical applications, keep one cold spare on your shelf.
Compatible Parts — Same System
These modules share the same system family as the 133388-02. Commonly ordered together for complete rack builds or spare parts kits.
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