Bently Nevada 330194-10-24-50-CN Proximity Probe

330194-10-24-50-CN In Stock Now — Every Hour of Downtime Costs You Money

Your turbine tripped at 02:00. The DCS is screaming. Maintenance is standing by. The root cause: a failed proximity probe on the radial bearing channel. You’ve confirmed the part number — Bently Nevada 330194-10-24-50-CN — and now you need it on-site before the next shift window closes. That’s exactly why we stock this unit in Xiamen, ready to clear customs today.

We don’t sell catalog filler. Every 330194-10-24-50-CN on our shelf has been inspected — connector seating, cable jacket integrity, bias voltage output — before it goes into a box with your name on it. No surprises at installation. No second trip to the bearing housing.

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

Quick Technical Datasheet

Troubleshooting & Replacement Tips

Most common failure modes for 330194-10-24-50-CN in the field:

1. Bias voltage out of range (not −10 VDC ± 1 V at mid-gap)
This is the #1 call I get at 03:00. Before condemning the probe, check the driver (330180) first — a failed Proximitor will pull the bias rail down and mimic a dead probe. Swap the driver on a known-good channel, re-measure. If bias recovers, the probe is fine. If bias stays flat, the probe coil is open — replace 330194-10-24-50-CN.

2. Intermittent OK/NOT OK on the 3300/16 monitor
Ninety percent of the time this is the CN connector at the junction box, not the probe body. Vibration works the connector loose over months. Reseat, torque to spec (finger-tight plus 1/4 turn), re-observe. If the fault clears, wrap the connector with self-amalgamating tape to prevent recurrence. If the fault persists after reseating, the cable has a micro-fracture — replace the probe assembly.

3. High 1× vibration reading after probe swap
You installed the new probe but the 1× amplitude jumped 15–20%. Check your gap setting. The 330194-10-24-50-CN nominal gap is 50 mil (1.27 mm). Use a feeler gauge or the driver’s output voltage: −10 VDC = mid-range. If you’re reading −8 V or −12 V, the probe is sitting too close or too far. Adjust the probe tip-to-shaft gap until you hit −10 VDC ± 0.5 V, then lock the locknut.

4. System cable length mismatch after replacement
The 3300 XL system is calibrated for a fixed total cable length — typically 5 m or 9 m (probe integral cable + extension cable). The 330194-10-24-50-CN has a 24-inch (0.61 m) integral cable. If your extension cable is 330130-080-00-CN (8 m), your total is 8.61 m — outside the 9 m calibration window. This will shift sensitivity by 2–4% and cause false alarms. Always verify total system cable length before ordering. If you’re unsure, send us your extension cable part number and we’ll confirm compatibility.

5. ETR probe installed with standard-temperature driver
The 330194-10-24-50-CN is an ETR variant and must be paired with an ETR-rated driver (330180). Pairing it with a standard 330190 driver will produce a sensitivity error of up to 8% and will not be caught by the monitor’s self-test. This is a silent failure mode. Verify your driver part number before installation.

Replacement procedure (condensed field checklist):

• Isolate the monitor channel — inhibit alarms before disconnecting the probe to avoid spurious trips.
• Disconnect the CN connector at the junction box. Do not pull by the cable.
• Back out the probe from the bracket. Note the locknut position (count turns) to preserve approximate gap.
• Install the new 330194-10-24-50-CN. Thread in to the same turn count as the removed probe.
• Fine-adjust gap: target −10 VDC ± 0.5 V at the driver output terminal.
• Torque locknut. Reconnect CN connector. Re-enable monitor channel.
• Observe 1× and DC gap readings for 5 minutes at operating speed before clearing the work order.

Reliability in Harsh Conditions

The 330194-10-24-50-CN was not designed for a clean instrument room. It was designed for the inside of a steam turbine bearing housing where ambient temperatures exceed 150 °C, lube oil mist coats every surface, and the shaft is spinning at 3,000 RPM generating continuous vibration across a 10–10,000 Hz spectrum.

The stainless steel probe body resists corrosion from sulfur-bearing process gases and chloride-laden cooling water. The PTFE cable jacket does not crack, stiffen, or outgas at the rated temperature extremes — a failure mode that plagues cheaper aftermarket probes within 18 months of installation. The IP67 rating on the probe body means a momentary lube oil flood during a seal failure will not compromise the coil assembly.

Vibration endurance: the probe assembly is qualified to withstand continuous sinusoidal vibration per IEC 60068-2-6 — the same standard used for avionics and offshore instrumentation. In practice, this means the probe survives the mechanical resonance events that occur during turbine runup and coastdown, where shaft vibration amplitude can briefly exceed normal operating levels by 3–5×.

Thermal cycling: the ETR designation means the probe has been validated through repeated thermal cycles from −50 °C to +177 °C without sensitivity drift exceeding the ±1% specification. Standard probes begin to drift above 120 °C. If your bearing housing runs hot, the 330194-10-24-50-CN is the correct choice — not a workaround.

Global Express Logistics

Stock location: Xiamen, Fujian, China — one of the most connected export hubs in Asia, with direct DHL and FedEx International Priority flights to major industrial centers worldwide.

Typical transit times from Xiamen:

• Southeast Asia (Singapore, Thailand, Malaysia): 2–3 business days via DHL Express
• Middle East (UAE, Saudi Arabia, Qatar): 3–4 business days via FedEx IP
• Europe (Germany, Netherlands, UK): 4–5 business days via DHL Express
• North America (USA, Canada): 4–6 business days via FedEx International Priority
• Australia / New Zealand: 3–5 business days via DHL Express

Shipment process: Orders confirmed before 14:00 CST are packed and handed to the carrier the same day. Each shipment includes a commercial invoice, packing list, and country of origin certificate. For orders requiring an ECCN classification or end-user statement, contact us before placing the order — we handle export documentation daily and will not delay your shipment over paperwork.

Tracking numbers are issued within 2 hours of carrier pickup. For critical shutdowns where every hour counts, contact us via WhatsApp for real-time shipment status updates directly from our logistics team.

Customs clearance: the 330194-10-24-50-CN is classified under HS 9031.80.90.90 (measuring/checking instruments). Duties vary by destination country. We declare actual transaction value — no under-declaration. If your plant’s procurement team requires a formal proforma invoice for customs pre-clearance, we generate it within 30 minutes of order confirmation.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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