Bently Nevada 330904-00-13-10-02-05/CN Proximity Probe

330904-00-13-10-02-05/CN: Stop the Clock on Your Downtime — Ship Today from Xiamen

Every hour a turbine or compressor sits idle costs real money. When your Bently Nevada 330904-00-13-10-02-05/CN proximity probe fails, you don’t have time for a three-week lead time from a distributor. We stock this exact part number — the complete 3300 NSv 8 mm eddy-current probe assembly — and we ship same-day via DHL Express or FedEx Priority from Xiamen, China. From our warehouse to your plant floor in 24–72 hours, depending on your region.

This is not a substitute. This is not a “compatible equivalent.” This is the genuine Bently Nevada 330904-00-13-10-02-05/CN, factory-calibrated, serialized, and shipped with a certificate of conformance. If your 3300 NSv system is throwing a Not OK alarm or your DCS is reading a flat-line vibration channel, this probe is your fastest path back to normal operation.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

The 330904-00-13-10-02-05/CN fails in predictable ways. Here’s what I see most often in the field and how to handle each scenario before you even open the junction box:

Symptom 1 — Not OK (NOK) LED on the proximitor, flat DC output (~0 V or rail voltage)
Nine times out of ten this is a dead probe or a severed cable at the probe body. Pull the probe, check the tip for physical impact damage. Measure the probe’s internal resistance between the center pin and shield: should read 7–9 Ω. Open circuit or short = replace the probe. Do not attempt to repair the coil assembly.

Symptom 2 — Intermittent vibration spikes, no process change
Check the armored cable routing first. The 330904’s integral cable is rated for static installation — if it’s been flexing against a bracket edge, the inner conductor fatigues and creates noise. Inspect the full 5 m run. If you find a chafe point, the entire probe-cable assembly must be replaced; field splicing is not acceptable on a safety-critical vibration channel.

Symptom 3 — DC gap voltage out of range (monitor alarm: GAP HI or GAP LO)
Before condemning the probe, verify the physical gap. Target gap for the 330904 on a 4140 steel shaft is typically 1.0–1.5 mm (40–60 mil), giving you a DC output of −10 to −12 VDC at the driver output. If the gap is correct and the DC output is wrong, swap the driver (330180/330185) first — drivers fail more often than probes in high-temperature environments. If the new driver doesn’t fix it, replace the probe.

Replacement Procedure — Key Steps:

• De-energize the driver module at the rack before disconnecting the probe. Hot-swapping a live proximitor can damage the driver input stage.
• Record the existing gap voltage before removal. This gives you a baseline for reinstallation.
• The 330904 uses an M10 × 1 thread. Use a calibrated torque wrench — 5 N·m maximum on the locknut. Over-torquing cracks the probe body housing.
• After installation, set the gap to achieve −10.0 VDC ±0.5 V at the driver output (not at the monitor terminal). Use a calibrated DC voltmeter, not the monitor’s display, for initial setup.
• The /CN suffix version is electrically identical to the standard 330904. No driver reconfiguration or firmware change is required when substituting /CN for non-CN units or vice versa.
• Total system cable length (probe cable + extension cable) must not exceed the driver’s rated maximum. For the 330180/330185, this is typically 9 m. If your installation uses a 330780 extension, verify the combined length before commissioning.
• After reconnecting, allow 15 minutes for the driver to thermally stabilize before logging the final gap voltage in your maintenance record.

Common Fault Codes on 3500-Series Monitors (when used with 3300 NSv probes via adapter):

• Alert/Danger — Radial Vibration: Confirm probe gap first. A probe that has shifted axially due to a loose locknut will read falsely high vibration.
• Not OK — Channel Fault: Check driver power supply (−24 VDC). A sagging supply rail causes NOK on multiple channels simultaneously.
• Buffered Output Noise: Verify shield grounding at the junction box. The 330904’s shield must be grounded at one end only (driver end). Double-grounding introduces a ground loop that appears as 50/60 Hz noise on the vibration spectrum.

Reliability in Harsh Conditions

The 330904-00-13-10-02-05/CN was designed for environments that destroy ordinary sensors. The probe body is machined from stainless steel with a PEEK-tipped coil housing, giving it genuine resistance to the oils, steam, and process gases found inside turbine bearing housings. The armored cable jacket handles continuous exposure to lubricating oil and coolant without swelling or cracking — a failure mode that plagues cheaper aftermarket probes within 18 months of installation.

Vibration is the other killer. The probe assembly is rated to withstand 20 g sinusoidal vibration across 10–2,000 Hz — the full spectrum you’ll encounter on a high-speed centrifugal compressor or a steam turbine running at 3,000–3,600 RPM. The integral cable termination at the probe body is the most mechanically stressed point in the system; Bently Nevada’s factory crimping process ensures this joint survives the same vibration profile as the probe body itself.

Temperature cycling is where many field-installed sensors degrade silently. The 330904 is rated from −35 °C to +177 °C, covering everything from an outdoor installation in northern China in winter to a bearing housing on a high-pressure steam turbine. The PEEK coil former maintains dimensional stability across this range, which means your sensitivity (7.87 V/mm) stays within the factory-calibrated tolerance without field recalibration — a critical requirement for API 670-compliant machinery protection systems.

Humidity and condensation are handled by the probe’s hermetically sealed coil assembly. There is no moisture ingress path into the active sensing element. This matters in coastal plants, offshore platforms, and any installation where the probe is exposed to wash-down or high-humidity ambient conditions.

Global Express Logistics

Our dispatch hub is in Xiamen, Fujian Province — one of China’s primary export ports with direct DHL and FedEx gateway connections. Here’s exactly how your order moves from our shelf to your plant:

• Order confirmed before 14:00 CST: Same-day dispatch. Your tracking number is in your inbox before 18:00 CST.
• DHL Express Worldwide: Southeast Asia — 24–48 hours. Middle East, Europe — 48–72 hours. Americas — 72–96 hours. These are door-to-door transit times, not business days.
• FedEx International Priority: Available as an alternative for destinations where FedEx has a service advantage. We select the faster carrier for your specific destination automatically.
• Export documentation: Commercial invoice, packing list, and certificate of origin are prepared same-day. For orders requiring a certificate of conformance or factory test report, these are included in the shipment package — no additional lead time.
• Customs clearance: We declare all shipments accurately under the correct HS code (8543.70 or 9031.80 depending on destination customs requirements). We do not under-declare value. This protects you from customs holds that would defeat the purpose of express shipping.
• Tracking: A live tracking link is sent via email and WhatsApp immediately after dispatch. For urgent orders, our logistics team monitors the shipment and proactively contacts you if any customs delay is detected.
• Bulk orders: For quantities above 5 units or combined shipments exceeding 30 kg, we provide a freight quote via air cargo (IATA) for cost optimization without sacrificing speed.

We have shipped Bently Nevada proximity probes to refineries in Saudi Arabia, power plants in Vietnam, paper mills in Indonesia, and compressor stations across Europe. The process is the same every time: fast, documented, and traceable.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
© 2026 siemensplc.com. All rights reserved.