Bently Nevada 21000-16-10-00-217-04-02 Maintenance-Ready Spare for 3300 XL Automation
The Bently Nevada 21000-16-10-00-217-04-02 is an original proximity transducer housing component engineered for the 3300 XL Series continuous machinery monitoring system. In rotating machinery protection environments — turbines, compressors, pumps, and gearboxes — this component plays a critical role in maintaining accurate vibration and position measurement. Unplanned failure of this part directly threatens system uptime and can trigger costly emergency shutdowns. Stocking a verified original spare is the most effective strategy for minimizing mean time to repair (MTTR) and sustaining continuous operation.
At SMARTNEXMSK, every unit of the 21000-16-10-00-217-04-02 is sourced from authorized supply chains, individually inspected, and shipped with full traceability documentation. Our 12-month warranty covers manufacturing defects and ensures your maintenance team has recourse if any issue arises post-installation. We support maintenance engineers and procurement teams across power generation, oil & gas, petrochemical, and heavy manufacturing sectors.
Spare Maintenance Table
| SKU / Part Number | 21000-16-10-00-217-04-02 |
| Brand | Bently Nevada |
| Series | 3300 XL Proximity Transducer System |
| Component Type | Proximity Transducer / Probe Housing Assembly |
| Measurement Function | Radial vibration, axial position, differential expansion |
| Signal Output | -18 VDC nominal (standard Bently Nevada Proximitor output) |
| Cable Length / Configuration | Per SKU suffix: 16-inch probe, 10-foot extension cable, standard connector |
| Thread / Mounting | 8mm standard Bently Nevada probe thread; compatible with 3300 XL mounting hardware |
| Operating Temperature | -35°C to +177°C (probe tip); electronics per Proximitor spec |
| Compatibility | 3300 XL Proximitor Monitors, 3300/16 rack systems, 3500 Series (with adapter verification) |
| Application Environment | Steam turbines, gas turbines, centrifugal compressors, pumps, gearboxes |
| Condition | Original / New — not refurbished |
| Weight | 1,080 g (packaged) |
| Origin | USA |
| Warranty | 12 Months — covers manufacturing defects, includes test report on request |
| Lead Time | In-stock: ships within 2 business days; ex-stock global logistics available |
Maintenance Planning for Continuous Operation
When a 21000-16-10-00-217-04-02 proximity transducer is flagged during routine point inspection or condition monitoring review, experienced maintenance engineers know that replacing the probe alone is rarely sufficient. A thorough site assessment should encompass the entire measurement loop to prevent repeat failures and ensure the replaced component performs to specification from day one.
Begin with the Proximitor sensor module (such as the 3300 XL 8mm Proximitor, part series 330180 or 330181) — the signal conditioning electronics that pair directly with this probe. If the probe has failed due to electrical overstress, the Proximitor may have sustained damage as well. Inspect the extension cable (typically 3300 XL armored extension, 330130 series) for insulation breakdown, connector corrosion, or mechanical damage from vibration fatigue. A degraded cable is a frequent root cause of intermittent probe faults that are misdiagnosed as probe failures.
Check the 3300/16 monitor card or the relevant 3500/42 Proximitor Monitor input channel for correct gap voltage readings (typically -10.0 VDC ±0.5 VDC at nominal gap). Verify that the barrier or Zener barrier in the intrinsically safe loop (where applicable) has not degraded — these components are often overlooked during spare parts planning but are critical in hazardous area installations. Inspect terminal blocks and field wiring in the junction box for loose connections, moisture ingress, or corrosion, particularly in outdoor or high-humidity environments.
For systems integrated into a 3500 Series rack, confirm that the 3500/20 rack interface module and 3500/92 communication gateway are functioning correctly, as communication faults can mask genuine vibration alarms. If the machine has been in service for more than five years, consider scheduling a calibration check of the 3300 XL Keyphasor module alongside this replacement — phase reference accuracy directly affects vibration vector analysis. Finally, review the Bently Nevada System 1 software configuration to ensure the new probe’s gap and scale factor settings are correctly entered before returning the machine to service.
Site Replacement Workflow
Step 1 — Pre-shutdown verification: Confirm the replacement 21000-16-10-00-217-04-02 matches the installed probe’s suffix codes (length, cable, connector type). Cross-reference the machine’s as-built documentation or the existing probe label before ordering.
Step 2 — Safe isolation: De-energize the Proximitor supply circuit at the 3300/16 or 3500 rack. Lock out / tag out per site procedure. Do not disconnect the probe under power — this can damage the Proximitor input stage.
Step 3 — Probe removal and gap measurement: Record the existing probe gap (distance from probe tip to shaft) using a calibrated gap meter or by noting the DC gap voltage before removal. This baseline is required to set the replacement probe to the same gap, typically 1.0 mm (40 mil) for 8mm probes.
Step 4 — Installation and gap setting: Install the new 21000-16-10-00-217-04-02, set gap to the recorded value, and torque the locknut to the manufacturer’s specification. Reconnect the extension cable and verify connector seating.
Step 5 — Loop verification: Re-energize the Proximitor and confirm gap voltage is within the linear range (-10.0 VDC ±0.5 VDC). Check the monitor channel for valid vibration readings at slow roll. Compare with historical baseline data before releasing the machine for startup.
Step 6 — Documentation: Record the replacement in the maintenance management system (CMMS), including the new probe serial number, gap setting, and post-installation gap voltage. Update the spare parts inventory to trigger reorder of a replacement unit.
Spare Parts Support FAQ
Q1: Is the 21000-16-10-00-217-04-02 compatible with both 3300 XL and 3500 Series monitors?
The 21000-16-10-00-217-04-02 is natively designed for the 3300 XL system. Compatibility with 3500 Series monitors depends on the specific monitor card and configuration. We recommend verifying the gap voltage range and scale factor with your system documentation or contacting our technical team before installation in a 3500 rack.
Q2: What pre-shipment testing is performed on each unit?
Every 21000-16-10-00-217-04-02 shipped by SMARTNEXMSK undergoes electrical continuity verification, insulation resistance check, and visual inspection for connector and housing integrity. A test report is available on request. Units are packaged in anti-static, moisture-resistant packaging for safe international transit.
Q3: How should this spare be stored in a maintenance inventory?
Store in a dry, temperature-controlled environment (10°C–35°C), away from strong magnetic fields and direct sunlight. Keep in original packaging until installation. Recommended maximum storage period before use is 3 years; inspect connector and cable insulation before installation if stored longer.
Q4: What does the 12-month warranty cover, and how is a claim processed?
The 12-month warranty covers manufacturing defects in materials and workmanship from the date of shipment. It does not cover damage from incorrect installation, electrical overstress, or mechanical impact. To initiate a warranty claim, contact sales@smartnexmsk.com with the order number, installation date, and a description of the fault. Replacement or credit is processed within 5 business days of fault confirmation.
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