Product details
Product Introduction: Bently Nevada 3300 XL 8 mm ETR Probe
The Bently Nevada 3300 XL 8 mm ETR Probe (330192-00-20-30-05) delivers reliable shaft vibration and position measurements.
This probe uses a 3/8-24 UNF thread with armor for harsh environments.
It features CSA, ATEX, and IECEx hazardous area approvals.
Designed for turbomachinery, compressors, and rotating equipment, it ensures accurate, repeatable data.
Technical Specifications
- Brand: Bently Nevada
- Model: 330192-00-20-30-05
- Series: 3300 XL
- Type: 8 mm ETR Probe with armor
- Thread: 3/8-24 UNF
- Unthreaded Length Option: Minimum 0.0 in. (must be 0.8 in. less than case length)
- Overall Case Length: 2.0 in (option 20)
- Total Length: 3.0 meters (option 30)
- Agency Approval: CSA, ATEX, IECEx (option 05)
- Nominal Probe DC Resistance: 8.17 ± 0.50 Ω (3.0 m length)
- Probe Tip Material: Polyphenylene sulfide (PPS)
- Probe Case Material: AISI 303 or 304 stainless steel (SST)
- Maximum Thread Engagement: 0.563 in (3/8-24)
- Operating & Storage Temperature (Standard): -52°C to +177°C (-62°F to +350°F)
- Extended Temperature Range (Tip): -52°C to +218°C (-62°F to +425°F)
- Extended Range (Cable & Connector): -51°C to +260°C (-60°F to +500°F)
- Pressure Seal: Viton® O-ring (differential pressure design)
- Relative Humidity: < 3% ASF change after 56 days at 93% RH (IEC 68-2-3)
- Hazardous Area Approvals: Ex ia IIC T5…T1 Ga, Class I, II, III, Zone 0, Zone 2 (nA, ec)
- Temperature Schedule (EPL Ga/Gc): T1: -55°C to +232°C, T2: -55°C to +177°C, T3: -55°C to +120°C, T4: -55°C to +80°C, T5: -55°C to +40°C
Measurement & Performance
- Measurement Range: 8 mm proximity (non-contact)
- Frequency Response: 0 to 10 kHz (typical for 3300 XL)
- Sensitivity: 7.87 V/mm (200 mV/mil) nominal
- Linearity: ±0.2 mm (±0.008 in) over full range
- Resolution: 0.001 mm (infinite resolution per system)
- Environmental Tolerance: Wide temperature range, high humidity, and pressure sealing
- Noise Immunity: Built-in armor and shielding for industrial environments
Installation & Compatibility
- Mounting Thread: 3/8-24 UNF with maximum 0.563 in engagement
- Case Length Flexibility: Unthreaded length adjusts to case length for precise mounting
- Compatible Systems: Works with Bently Nevada 3300 XL proximity systems, monitors, and extension cables
- Extension Cables: Recommended models:
- 330190-085-00-CN – for general use
- 330190-085-00-05 – with approvals
- Compare with similar: For applications requiring smaller tip, consider 3300 5mm Proximity Probes. The 8 mm probe offers larger range and ruggedness, while 5 mm suits tighter spaces.
- Installation Tip: Ensure case length exceeds unthreaded length by at least 0.8 in for proper sealing.
Maintenance & Serviceability
- Maintenance Ease: No periodic calibration needed; reliable solid-state design.
- Field Serviceability: Armored cable resists abrasion; Viton® O-ring ensures long-term seal integrity.
- Debug Simplicity: DC resistance test verifies probe health quickly.
- Flexible Deployment: Interchangeable with other 3300 XL probes and cables.
Certifications & Quality
- Hazardous Area: CSA, ATEX, IECEx – Zone 0, Zone 2, Class I, II, III
- Temperature Class: T1 through T5 (probe only) per EPL Ga and Gc
- Manufacturing: Made in U.S.A., meets Bently Nevada quality standards
- Pressure Test: Contact custom design department if application requires pressure seal test.
Package & Delivery
- Package Contents: 1 x 3300 XL 8 mm ETR Probe with armor
- Warranty: 12 months from date of shipment
- Shipping Time: 12-24 hours after order confirmation
- Carriers: FedEx, UPS, DHL (express worldwide)
Manager‘s Insight
For plant reliability managers, the 330192-00-20-30-05 delivers proven performance in critical machinery monitoring.
Its extended temperature tip handles up to 218°C, making it ideal for gas turbines and steam turbines.
The armored cable prevents downtime from mechanical damage.
Combine with 3300 XL monitors to achieve API 670 compliance.
Expert Review
The 3300 XL 8 mm probe series remains an industry standard for non-contact vibration sensing.
The 3.0 m total length and 2.0 in case length in this variant offer a balanced fit for most machines.
Linear response up to 10 kHz covers common rotor dynamics.
Users consistently note its repeatability and noise immunity in electrically noisy plants.
Applications & Compatible Equipment
- Steam and gas turbines
- Centrifugal and axial compressors
- Pumps, fans, and blowers
- Generators and motors
- Paper mill rollers and steel mill equipment
- Any rotating machinery requiring shaft relative vibration or position monitoring
Frequently Asked Questions (FAQ)
- What is the difference between 8 mm and 5 mm probes?The 8 mm probe offers a larger measurement range and is more rugged. For tighter spaces, the 3300 5mm Proximity Probes provide a smaller tip size.
- Can I use this probe with an existing 3300 XL extension cable?Yes. It is fully compatible with 3300 XL extension cables. Ensure the system total length matches the required driver or monitor.
- Is the pressure seal tested before shipping?No. Probes are not pressure tested prior to shipment. If your application requires a test, contact the custom design department.
- What is the maximum temperature at the probe tip?Standard range: +177°C. Extended range tip: up to +218°C. Avoid prolonged exposure below -34°C to protect the pressure seal.
- What approvals does this model carry?CSA, ATEX, IECEx for hazardous areas (option 05). Suitable for Zone 0, Zone 2, Class I, II, III.
- Which extension cable should I select?For most applications, the 330190-085-00-CN is cost-effective. For hazardous areas with approvals, choose the 330190-085-00-05. Verify total system length.
- How do I verify probe health on-site?Measure DC resistance between center and outer conductor. Expected value: 8.17 ± 0.50 Ω for the 3.0 m length.
Selection Guide
- Choose the 8 mm probe when you need robust construction and wide gap range.
- Select case length based on mounting depth; ensure unthreaded length is at least 0.8 in shorter than case length.
- For ambient temperatures above 177°C, confirm extended temperature tip compatibility.
- When operating in hazardous zones, verify the probe and cable both carry required approvals.
- Match total probe + extension cable length to your proximitor system specifications.
For inquiries, contact us:
sales@powergearx.com or
+86 18030005825 (WhatsApp).
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