Bently Nevada 3500/50M 133442-01 Internal-Termination Tachometer I/O Module
The internal-termination rear I/O module for a 3500/50M two-channel tachometer installation.
Product Overview
3500/50M 133442-01 is the rear I/O module with internal terminations for the Bently Nevada 3500/50M Tachometer. It provides the rack-side field connection behind the matched front monitor.
The 3500/50M measures speed-related variables from compatible proximity probes or magnetic pickups, but it is not designed as an overspeed shutdown system.
Performance
- Routes supported speed-transducer signals to the paired tachometer front module.
- Provides recorder and buffered-signal paths defined by the 3500/50M architecture.
- Maintains internal field termination directly at the rear of the rack.
- Supports speed, zero-speed, acceleration and reverse-rotation monitoring when configured in the companion monitor.
Technical Details
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Identification | 3500/50M 133442-01 |
| Product Family | 3500/50M Tachometer Module |
| Module Role | Rear I/O module |
| Termination Style | Internal terminations |
| Matched Front Module | 288062-02 |
| Supported Sensors | Compatible Proximitor probes or magnetic pickups |
| Rack Location | Rear slot aligned with the front tachometer |
System Integration
- Place the I/O directly behind the corresponding 3500/50M front monitor.
- Record signal polarity, sensor power, recorder wiring and grounding before moving conductors.
- Select a different I/O part when external termination, internal barriers or TMR architecture is required.
- Verify each speed channel and its alarm logic after installation.
Applications
- Internal-termination speed monitoring in 3500 machinery-protection racks.
- Zero-speed and reverse-rotation supervision on supported rotating machinery.
- Maintenance replacement where existing field wiring lands directly on the rear module.
FAQ
Can 3500/50M 133442-01 be used with external termination blocks?
No. Select the external-termination I/O and its cables when field wiring must land away from the rack.
Is 3500/50M 133442-01 suitable for machine overspeed shutdown?
The 3500/50M is a tachometer, not the dedicated overspeed-detection system required for that protection role.
Which front monitor should be paired with 3500/50M 133442-01?
Use the documented 3500/50M tachometer front module and verify rack revision compatibility.
Can magnetic-pickup and Proximitor inputs be moved without reconfiguration on 3500/50M 133442-01?
No. Sensor type, thresholds, scaling and wiring must be checked for each channel.
What should be supplied with a 3500/50M 133442-01 enquiry?
Provide the front-module identity, sensor part numbers, slot position, terminal photograph and rack configuration.
What tests follow replacement of 3500/50M 133442-01?
Verify sensor signal quality, displayed speed, direction logic, alarms and recorder outputs.
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