330191-00-16-90-CN 3300 XL 8mm ETR Proximity Probe – Bently Nevada

Product Overview

• Bently Nevada 330191-00-16-90-CN – 3300 XL 8 mm ETR proximity probe. New & original, factory sealed. 12‑month warranty.
• Robust 8 mm PPS tip with TipLoc & CableLoc technology. 330 N (75 lbf) pull strength. Thicker encapsulation withstands physical abuse.
• Total length 9.0 m (29.5 ft) – one‑piece system (no extension cable). Unthreaded length 0.0 in, case length 1.6 in, 3/8‑24 UNF thread.
• Designed for harsh environments: optional FluidLoc prevents oil leakage through cable interior. Viton® O‑ring seals differential pressure.
• Country Specific Approval (CN) included. Suitable for EPL Ga, Gc, Dc applications.

Suffix Tree Structure — Ordering Code Breakdown

• 330191 (Base model – 3300 XL 8 mm ETR probe)
  • -00 Unthreaded length option: 0.0 inch (minimum)
    • -16 Overall case length: 1.6 inch
      • -90 Total probe length: 9.0 meters (29.5 ft)
        • -CN Agency approval: Country Specific (China)
• Alternative configurations (compare via links below)
  • 330191-40-75-50-05 → 5 m, FluidLoc, armour? view
  • 330191-40-75-50-00 → 0.5 m, compact view

Technical Specifications

• Brand Bently Nevada · Model 330191-00-16-90-CN
• Supply voltage –17.5 to –26 Vdc (non‑incendive), –23 to –26 Vdc with barriers
• Sensitivity < 2 mV change per volt change; output resistance 50 Ω
• Probe DC resistance 9.87 Ω ±0.50 (center to outer conductor)
• Tip material Polyphenylene sulfide (PPS); case AISI 303/304 SST
• Cable 75 Ω triaxial FEP (standard) or PFA (extended temp); optional SST armour with FEP jacket
• Temperature range –55 °C up to +232 °C (T1 class, probe only)
• Environmental resistance Viton® seal, fluid blocking option, 330 N tensile strength at case/lead
• EMI/RFI immunity via triaxial design; meets entity parameters with BN extension cables

Installation & Dimensions

• Thread size 3/8‑24 UNF; max thread engagement 0.563 in
• Connector torque 0.565 N•m (5 in•lbf) – gold‑plated brass/BeCu
• Overall length options 0.5, 1, 1.5, 2, 3, 5, 9 m (this unit 9 m)
• Unthreaded length 0.0 in (minimum); case length 1.6 in
• Weight approx 323 g/m (11.4 oz per meter)
• Mounting accepts standard 8 mm probe holders; Viton® O‑ring included for pressure sealing

Compatibility & Interchangeability

• Fully compatible with 3300 XL 8 mm extension cables and Bently Nevada Proximitors
• One‑meter systems (like this 9 m total) need no extension cable – direct connect
• Use with 3300 XL 5 mm Proximity Probes for different spatial constraints; see comparison below
• Entity parameters met when used with BN extension cables and approved barriers
• FluidLoc option recommended for turbines or compressors with oil‑filled casings

Calibration & Maintenance

• Factory calibrated – no field adjustment needed
• Linear range maintained when supplied with –23.5 Vdc or more negative
• Stainless steel case resists corrosion; PPS tip withstands most lubricants
• Connector hand‑tighten only; max torque 5 in•lbf to avoid damage
• No scheduled maintenance; periodic inspection of cable & connector recommended

Certifications & Approvals

• Agency approval CN – Country Specific (suitable for China regulatory)
• Temperature classifications T1 … T5 for gas groups; Dc ratings also provided
• Non‑incendive per drawing 140979; use with appropriate barriers
• RoHS compliant; manufactured under ISO 9001

Package Contents & Logistics

• 1 x Bently Nevada 330191-00-16-90-CN probe (factory packaging)
• Viton® O‑ring (pre‑fitted), installation instructions not included (downloadable)
• 12‑month factory warranty – defects in material/workmanship
• Fast shipping 12‑24 h dispatch via FedEx, UPS, DHL (tracked)
• For inquiries: sales@powergearx.com or +86 18030005825 (WhatsApp)

Expert Review – Manager’s Insight

• “The 3300 XL 8 mm is the workhorse of turbomachinery protection. Its 330 N pull strength and TipLoc moulding eliminate cable breakage – a common failure point. For high‑temperature zones (up to 232 °C), this 9 m version gives flexibility in cable routing without extension joints. We recommend it over 5 mm types where space permits – the thicker tip survives vibration better.”

Application & Equipment Fit

• Ideal for steam/gas turbines, centrifugal compressors, gearboxes, pumps
• Radial vibration & thrust position measurements in API 670 compliant trains
• Hazardous areas with EPL Ga/Gc/Dc requirements; temperature class up to T2 (177 °C) continuous
• Direct replacement for older 3300/3300 XL systems; retrofits easily in 8 mm mounting holes

Selection Guide – Compare 8 mm Options

• ▶ 330191-40-75-50-05 – 5 m total length, extended cable, armour?
  view
• ▶ 330191-40-75-50-00 – 0.5 m system, compact, no armour
  view
• ▶ This model 330191-00-16-90-CN – 9 m, no armour, CN approval, 0.0 unthreaded
• Need shorter tip? Consider 3300 5mm Proximity Probes where hole size is limited. 8 mm offers better durability; 5 mm fits tighter spots.

Frequently Asked Questions (FAQ)

• Can I use this probe with a 3300/20 monitor?Yes, it is fully compatible with all Bently Nevada 3300 XL monitors and proximitors when using correct extension cable (not needed for 9 m system).
• What is the difference between standard and FluidLoc cable?FluidLoc adds an internal barrier to stop oil wicking through the cable braid. It is essential for machines with lube oil pressure differential.
• Does the 9 m length require an extension cable?No, the total probe length is 9 m – it connects directly to the proximitor. Only systems below 9 m (e.g. 5 m) use extension cables.
• Which temperature class applies at 200 °C?At 200 °C ambient (probe only), it falls under T2 rating (–55 °C to +177 °C). For 232 °C use T1 class but verify with gas group.
• Can I immerse the probe tip in liquid?Yes, the PPS tip and Viton seal are compatible with most oils, water, and process fluids. However, it is not certified for continuous submerged use without checking pressure limits.
• What torque should I apply to the connector?Maximum 0.565 N•m (5 in•lbf). Overtightening damages gold plating and may cause intermittent signals.
• Is this probe Ex‑certified for Europe?This version carries “CN” country approval (China). For ATEX/IECEx please order with “-CA” or “-EA” suffix. Contact us for cross‑references.
• How do I verify correct gap voltage?Mount the probe, set target at mid‑range (approx 1.27 mm for 8 mm), adjust supply so that output is –9 to –11 Vdc per calibration certificate.

Selection Advice – Expert Tips

• For turbines and compressors, prioritize 8 mm probes (like this model). The thicker PPS tip offers higher impact resistance.
• If you need a feed‑through installation and want to prevent oil leakage, choose a model with the FluidLoc option (e.g., 330191-40-75-50-05).
• 0.0 inch unthreaded length means the tip contacts the mounting threads directly – ideal for applications requiring maximum thread engagement.
• Compare 330191-00-16-90-CN vs. 330191-40-75-50-00: the former is 9 m without armour, suitable for remote monitoring; the latter is 0.5 m, perfect for compact cabinets.
• Visit 3300 5mm Proximity Probes to explore smaller diameter options for space‑constrained bearing housings.

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