WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Specification Value |
|---|---|
| Channel Count | 2 independent speed or phase reference channels |
| Input Frequency Range | 0.008 Hz to 50 kHz (0.5 rpm to 3,000,000 rpm) |
| Transducer Compatibility | Proximitor sensors, Magnetic Pickups, Opto-isolated switches |
| Accuracy | Speed tracking precise within +/-0.01% of measured value |
| Output Variables | Continuous Speed, Peak Speed, Rotor Acceleration, Reverse Rotation |
| Front Panel Interface | 2 coaxial BNC ports (1 per channel) for raw signal checking |
| Power Consumption | 5.8 Watts typical internal power draw |
| Signal Condition | 24-bit integrated processing resolution |
| Alarms Configurations | Independent Alert and Danger thresholds per channel |
4. Product Introduction & Supply Chain Strategy
The Bently Nevada 133388-01E is the high-performance internal circuit board assembly powering the 3500/50M Tachometer Module. This 2-channel card reads speed and timing signals from rotating shafts, providing accurate measurements for machine speed, acceleration patterns, and phase reference angles. Its processing core handles complex monitoring profiles—including reverse rotation alarms and peak speed event capture—to protect large turbines and compressor drivetrains from catastrophic structural breakdown.
Acquiring this controller as a New Surplus asset represents a strategic way to optimize Total Cost of Ownership (TCO) across your automation inventory. Because speed measurements provide the phase baseline for adjacent vibration monitors, timing jitter or clock degradation on refurbished boards can corrupt the phase data across the entire 3500 rack. Relying on a certified New Surplus 133388-01E card avoids the hidden failure risks of used electronics, providing fresh component longevity and factory-level precision without the delays of standard OEM backorders.
- 133388-01E
- 133388-01E
5. Installation & Configuration Guide
1Pre-Installation Prep & SafetyEstimated time: 10 min1.Pre-Installation Prep & Safety:Estimated time: 10 min.
Download the current master rack configuration profile using the 3500 utilities. Wear a grounded ESD wrist strap before opening the protective static-safe packaging. Inhibit or bypass all alert and danger relays linked to the tachometer module slots to protect the active machinery from false trip signals.
2Module RemovalEstimated time: 5 min2.Module Removal:Estimated time: 5 min.
Loosen the retaining hardware located on the upper and lower points of the active tachometer card. Disengage the module from the backplane assembly by pulling the front-panel ejector tabs outward in a single, balanced stroke. Pull the card smoothly out along the slot chassis guides.
3Jumper Alignment & SeatingEstimated time: 10 min3.Jumper Alignment & Seating:Estimated time: 10 min.
Inspect the hardware jumper configurations on the new 133388-01E circuit board to confirm they match your specific sensor line requirements (such as setting thresholds for standard passive magnetic pickups vs. active proximitor sensors). Slide the board into position and seat it firmly against the backplane.
4Power Verification & InitializationEstimated time: 15 min4.Power Verification & Initialization:Estimated time: 15 min.
Restore power to the 3500 rack and observe the front faceplate status lamps. The “OK” indicator should stay solid green once initialization completes. Connect your maintenance laptop to load the target parameter files, and verify that the speed readings match the expected baseline registers.
6. Firmware/Software Versions & Upgrade Notes
The 133388-01E card relies on clean firmware synchronization with the main 3500/25 Enhanced Keyphasor and 3500/22M TDI cards to distribute timing events across the backplane without latency. Operating mismatched firmware configurations can result in asynchronous phase data, causing inaccurate diagnostic plots in your System 1 software.
When inserting this revision board into older system architectures, verify the firmware compatibility baseline using the configuration utility. If firmware adjustments are needed, download the parameter file directly via a hardwired connection to ensure the data is written correctly to the onboard non-volatile memory sectors.
7. Frequently Asked Questions (FAQ)
What is the difference between the 133388-01E and standard Keyphasor cards? The 3500/50M tachometer focuses primarily on speed calculations, rapid acceleration alerts, and reverse-rotation tracking, while also supplying a phase reference signal. A dedicated Keyphasor card is optimized specifically for multi-event phase reference distribution across the rack bus.
Why choose a New Surplus 133388-01E instead of a refurbished unit? Speed monitoring circuits handle high-frequency pulse streams that stress aging microchips and internal filtering capacitors. Refurbished cards are prone to timing drift, which can cause false overspeed warnings or missed events. A New Surplus card ensures uncompromised component life and reliable timing accuracy.
Does the module store historical peak operating speeds locally? Yes. The 133388-01E maintains dedicated onboard non-volatile registers that store peak historical machinery speeds. This data remains intact even if the module is completely removed from the rack or if the system experiences a total power outage.
Can I connect two completely different transducer types to this single card? Yes. Each of the two channels on the 133388-01E is independent. You can configure channel 1 to read a passive magnetic pickup for raw shaft RPM tracking while setting up channel 2 to process a proximity sensor for phase angle calculations.
What type of hardware warranty applies to this surplus item? We supply this certified New Surplus Bently Nevada 133388-01E tachometer module with our comprehensive 1-year industrial replacement warranty. If you experience any component-level faults, processing anomalies, or communication dropouts under normal operation, we will provide a full product replacement.
