Product details
330192-00-20-50-CN: 3300 XL 8 mm ETR Probe with Armor
High-performance eddy current probe for critical machinery monitoring. Bently Nevada engineered it for precision and reliability in harsh industrial environments. Durable stainless steel case with sealed differential pressure design. Delivers accurate vibration and position measurements.
Choose this probe for tight spaces and long-term stability. 3/8-24 UNF thread and armor cable ensure secure installation. 5-meter total length works seamlessly with the 5 m Proximitor sensor. Reliable performance from -52°C to +177°C.
- Brand: Bently Nevada
- Model: 330192-00-20-50-CN
- Series: 3300 XL 8 mm ETR Probe
- Type: Eddy Current Transducer
Technical Specifications
- Measurement Range
- 8 mm diameter probe tip
- Linear range up to 2 mm (80 mils)
- Frequency Response
- DC to 10 kHz (-3 dB) for dynamic signals
- Sensitivity
- 7.87 V/mm (200 mV/mil) nominal
- Linearity
- ±0.3% of full scale, typical
- Resolution
- 0.0025 mm (0.1 mil) with proper Proximitor
- Temperature Range
- Standard probe: -52°C to +177°C (-62°F to +350°F)
- Probe tip extended range: -52°C to +218°C (-62°F to +425°F)
- Cable and connector: -51°C to +260°C (-60°F to +500°F)
- Pressure seal caution: below –34˚C (-30˚F) may cause premature failure
- Environmental Tolerance
- Less than 3% scale factor change at 93% humidity for 56 days
- Tested per IEC standard 68 2 3
- Noise Immunity
- Shielded cable with armor reduces EMI/RFI interference
- DC Resistance
- 8.73 ± 0.50 Ω from center conductor to outer conductor
Installation & Mounting
- Thread Specification
- 3/8-24 UNF thread
- Maximum length of thread engagement: 0.563 in
- Case Configuration
- Overall case length: 2.0 inches (20 option)
- Unthreaded length: minimum 0.0 in
- Unthreaded length must be at least 0.8 in less than case length
- Sealing System
- Viton® O-ring for differential pressure seal
- Seals pressure between probe tip and case
- Not pressure tested prior to shipment
- Cable Assembly
- With armor for mechanical protection
- Total length: 5.0 meters (16.4 feet)
Compatibility & Integration
- Proximitor Requirement
- Designed exclusively for 5-meter Proximitor sensors
- 5-meter probes pair only with 5 m Proximitor sensor
- Related Components
- 330190-085-00-CN — ETR extension cable
- 330190-085-00-05 — 5-meter extension cable assembly
- 3300 5mm Proximity Probes — alternative for larger shaft diameters
Maintenance & Serviceability
- Pressure Seal Verification
- Not factory tested before shipment
- Contact custom design department for pressure test requirement
- Temperature Precautions
- Avoid exposure below –34°C (-30˚F)
- Prevents premature pressure seal failure
- Cleaning Procedure
- Use isopropyl alcohol with soft cloth
- Apply to probe tip and case only
Certifications & Approvals
- Intrinsic Safety (ia)
- Class I, Zone 0: AEx/Ex ia IIC T5…T1 Ga
- Class I, Groups A, B, C, D
- Class II, Groups E, F, G
- Class III
- Requires installation with intrinsic safety zener barriers per drawing 141092
- Non-Incendive (nA, ec)
- Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc
- Class I, Division 2, Groups A, B, C, D
- Class I, Zone 2: AEx/Ex ec llC T5…T1 Gc
- Requires non-incendive circuit per drawing 140979
- Temperature Schedule (Probe Only)
- T1: -55°C to +232°C (EPL Ga and Gc)
- T2: -55°C to +177°C
- T3: -55°C to +120°C
- T4: -55°C to +80°C
- T5: -55°C to +40°C
- Agency Approval
- CN = Country Specific approval option
Package Contents
- 3300 XL 8 mm ETR Probe (330192-00-20-50-CN)
- Integrated armored cable, 5.0 meters (16.4 feet)
- Installation instructions — digital copy available upon request
Warranty & Logistics
- Warranty
- 12 months from delivery date
- Shipping
- 12-24 hour dispatch after order confirmation
- Carriers: FedEx, UPS, DHL
- Contact
- Email: sales@powergearx.com
- WhatsApp: +86 18030005825
Expert Review
Field engineers value this probe for repeatable accuracy and high temperature resilience. Armored cable reduces downtime from cable damage. Ideal for continuous monitoring on turbines, compressors, and pumps. Pairs seamlessly with 5-meter Proximitors for plug-and-play upgrades. Viton® O-ring reliably seals in oil-rich environments.
Manager’s Insight
Unthreaded length flexibility simplifies installation in tight bearing housings. Standardizing on this model reduces spare part inventory. One probe covers multiple casing depths. Hazardous area approvals (Zone 0, Div 1) cover most petrochemical applications. Lowers compliance risk significantly.
Applications & Compatible Equipment
- Steam Turbines
- Radial vibration monitoring
- Thrust position measurement
- Gas Compressors
- Shaft axial displacement monitoring
- Large Motors & Pumps
- Vibration monitoring for predictive maintenance
- Hydro Generators
- Air gap measurement
- Shaft runout monitoring
Frequently Asked Questions
- What is the exact cable length?
- Total length is 5.0 meters (16.4 feet). Includes the armored section.
- Can I use this with a 9-meter Proximitor?
- No. Use only with the 5-meter Proximitor sensor to maintain accuracy.
- Is the pressure seal tested before shipping?
- Not by default. Contact our custom design team if a pressure test is required.
- How do I avoid seal failure in cold climates?
- Keep operating temperature above -34°C to protect the Viton® O-ring.
- Does this probe work with existing 3300 XL mounting hardware?
- Yes. The 3/8-24 thread matches standard 3300 XL probe holders.
- What is the probe tip material?
- Polyphenylene sulfide (PPS).
- What is the probe case material?
- AISI 303 or 304 stainless steel (SST).
Selection Guide & Comparison
- When to choose 330192-00-20-50-CN
- Need complete probe with integrated armor cable
- Total length requirement exactly 5 meters
- Want factory-matched assembly for 5 m Proximitor
- When to add extension cables
- 330190-085-00-CN — extends probe lead without splicing
- 330190-085-00-05 — full 5-meter cable assembly
- Alternative probe options
- 3300 5mm Proximity Probes — larger target area for larger shaft diameters
- Matching rule
- Always match cable length to Proximitor type for proper calibration
- 5-meter probe requires 5-meter Proximitor sensor
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