Bently Nevada 33101-00-22-10-02-05 Proximity Transducer

Bently Nevada 33101-00-22-10-02-05 — Stop the Clock on Your Downtime

Every hour a critical machine sits idle, the losses compound. A tripped compressor train, a turbine pulled offline, a vibration fault that won’t clear — the 33101-00-22-10-02-05 is the part standing between you and restart. We stock it in Xiamen, we ship it today, and it lands at your site via DHL or FedEx Express before your maintenance window closes.

This is not a catalog listing. This is a field-ready replacement for one of the most widely deployed eddy-current proximity transducers in rotating machinery protection. If you are reading this at 2 AM with a BN 3300 system throwing a Not OK status, you are in the right place.

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

Quick Technical Datasheet

Troubleshooting & Replacement Tips

Field experience with the 3300 XL system surfaces the same failure modes repeatedly. Before you condemn the probe, work through this sequence:

1. Confirm the fault is the probe, not the Proximitor® or cable. Swap the Proximitor® driver first — it is the most common failure point in this measurement chain. A healthy probe on a failed driver will still read Not OK. Use a calibrated gap simulator (BN part 330185) to inject a known DC voltage at the driver input and verify the monitor response before pulling the probe from the machine.

2. Check the gap voltage at the driver output. With the machine stopped and the probe at nominal gap (typically 1.0–1.5 mm for most shaft diameters), the output should read approximately –10 to –12 VDC. A reading near 0 VDC or rail voltage (–24 VDC) indicates an open or shorted probe coil. Resistance across the probe coil pins should be 5–9 Ω; anything outside this range confirms probe failure.

3. Extension cable integrity. The 3300 XL system is a matched impedance chain. Substituting a non-BN extension cable or splicing a damaged cable with standard coax will detune the system and produce erratic scale factor readings. Always replace with the correct 330130 series extension cable at the same length as the original.

4. Probe installation torque and gap setting. Thread the replacement 33101-00-22-10-02-05 into the probe holder and set the gap to the value specified on the machine’s vibration monitoring datasheet — typically 1.0 mm (40 mil) for a –10 VDC nominal output. Use a non-metallic feeler gauge or the driver’s output voltage as your gap reference. Lock the probe with the jam nut to the specified torque (typically 5–7 N·m); under-torqued probes migrate under vibration and produce slow drift alarms.

5. Target surface condition. Eddy-current probes are sensitive to shaft surface finish and material homogeneity. Runout caused by surface scratches, plating variations, or residual magnetism will appear as 1× vibration. Before declaring the new probe faulty, verify shaft surface finish (Ra ≤ 0.8 µm recommended) and demagnetize the shaft if necessary.

Common fault codes on BN 3500 monitors paired with this probe:

• OK LED off / Not OK relay energized: Gap out of linear range, open probe coil, or driver power supply failure.
• High 1× vibration after replacement: Shaft runout, incorrect gap, or mismatched extension cable length.
• Slow upward drift on gap channel: Probe migration (loose jam nut) or thermal expansion of probe holder bracket.
• Intermittent Not OK: Cracked extension cable connector, loose BNC/TNC termination, or connector contamination from process fluid ingress.

Reliability in Harsh Conditions

The 33101-00-22-10-02-05 is not a laboratory instrument. It is built to survive the environments where rotating machinery actually operates — and those environments are hostile.

The probe body is machined from 316 stainless steel with a hermetically sealed ceramic-filled tip. The coil assembly is encapsulated in a thermosetting compound that resists hydrocarbon process fluids, steam condensate, and aggressive cleaning agents. In offshore compressor trains where salt-laden air and high humidity are constant, this probe has demonstrated service lives exceeding 15 years without recalibration.

Vibration immunity is a non-negotiable requirement for a sensor mounted directly on a machine casing. The 33101-00-22-10-02-05 is qualified to withstand 20 g sinusoidal vibration across 10–2000 Hz — well above the structural resonance frequencies of most compressor and turbine casings. The probe holder thread engagement and jam nut design prevent loosening under continuous vibration loading.

Thermal performance is equally robust. The –35°C lower limit covers arctic pipeline installations and cold-start conditions. The +177°C upper limit accommodates steam turbine bearing housings and hot-section compressor frames where ambient temperatures routinely exceed 120°C. The scale factor remains within ±1% linearity across this entire temperature range, which means your alarm and trip setpoints remain valid without temperature compensation.

In petrochemical environments where ATEX or IECEx certification is required, consult the specific approval codes on the product datasheet. The 3300 XL system has been certified for Zone 1 and Zone 2 hazardous areas in multiple configurations — confirm the approval suffix in the part number before installation in classified areas.

Global Express Logistics

Our warehouse is located in Xiamen, Fujian Province — one of China’s primary export hubs with direct access to DHL, FedEx, and UPS international express networks. This is not a drop-ship arrangement. Stock is physically on our shelves, inspected, and ready for same-day dispatch on orders confirmed before 15:00 CST.

Typical transit times from Xiamen:

• Southeast Asia (Singapore, Thailand, Malaysia, Indonesia): 2–3 business days via DHL Express
• Middle East (UAE, Saudi Arabia, Qatar, Kuwait): 3–4 business days via FedEx International Priority
• Europe (Germany, Netherlands, UK, France): 3–5 business days via DHL Express Worldwide
• North America (USA, Canada): 4–6 business days via FedEx International Priority
• Australia & New Zealand: 3–5 business days via DHL Express
• South America (Brazil, Chile, Colombia): 5–7 business days via FedEx

All shipments include a commercial invoice, packing list, and certificate of origin. For projects requiring customs clearance support, ATA Carnet documentation, or specific HS code declarations, contact us before placing the order. We have handled urgent cross-border shipments to refineries, LNG terminals, and power plants across 40+ countries — the paperwork will not be the bottleneck.

For orders requiring air freight consolidation with other BN 3300 system components (extension cables, Proximitor® drivers, mounting hardware), we can consolidate into a single shipment to reduce your total landed cost. Provide your full BOM and we will quote accordingly.

Contact Information

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