330172-00-12-50-01-CN – Bently Nevada 3300 5mm Proximity Probe

Key Technical Specifications

• Brand & Model: Bently Nevada 330172-00-12-50-01-CN – part of the 3300 Proximity Probes series.
• Probe Type: 5 mm proximity probe, 1/4-28 UNF thread with armor.
• Temperature Range: Probe operates from -35°C to +177°C (-31°F to +351°F).
• Supply Voltage: Requires -17.5 Vdc to -26 Vdc at 12 mA max consumption.
• Output Resistance: 50 Ω with sensitivity below 2 mV per volt change.
• Probe DC Resistance: 8.73 ± 0.70 Ω (center to outer conductor for 5.0 m length).
• Materials: Probe case uses AISI 304 stainless steel; tip uses Polyphenylene sulfide (PPS). Cable uses 75 Ω triaxial FEP insulation.

Complete Suffix Information (Tree Structure)

Model 330172-00-12-50-01-CN decodes into clear options. Each suffix defines a specific configuration for your installation.

• 330172 – Base probe model (3300 5mm probe series)
• 00 – Unthreaded Length Option: 0 inches
• 12 – Overall Case Length Option: 1.2 inches
• 50 – Total Length Option: 5.0 meters (16.4 feet)
• 01 – Connector Option: Miniature coaxial ClickLoc connector with connector protector, standard cable
• CN – Agency Approval Option: Country-specific approvals

Mechanical & Installation Details

• Probe Case Thread: 1/4-28 UNF with maximum thread engagement of 0.375 inches.
• Recommended Tap Drill: Use #3 or larger tap drill when drilling mounting hole.
• Probe Case Torque: Recommended torque is 5.1 N·m (45 in·lb); maximum torque is 7.3 N·m (65 in·lb).
• Connector Torque: Apply 0.565 N·m (0.42 ft·lbf) max; refer to manual for precise values.
• Minimum Cable Bend Radius: 25.4 mm (1.0 inch).
• Tensile Strength: 222 N (50 lbf) for probe case to lead, and same for lead to extension cable connectors.

Environmental & Magnetic Field Immunity

• Withstands 60 Hz magnetic fields up to 300 Gauss (5-meter system).
• Output voltage variation remains minimal: at 10 mil gap, probe contributes only 0.0004 mil pp/gauss.
• Temperature classification for hazardous areas: T1 to T5 for EPL Ga/Gc, and specific T-Class for EPL Dc.
• Exposing the probe below –34°C (-30°F) may affect pressure seal life.

Frequently Asked Questions (FAQ)

• Can I use this probe with a Bently Nevada Proximitor? Yes, 330172-00-12-50-01-CN works with 3300 XL Proximitor sensors and extension cables.
• What is the maximum cable length? The probe itself has 5.0 meters total length; extension cables can extend the system up to 9 meters total.
• Is this probe suitable for high-temperature zones? Yes, probe tip handles up to +177°C; for higher ambient temperatures check T-Class restrictions.
• What thread type does the probe use? It uses 1/4-28 UNF thread with maximum engagement 0.375 inches.
• Does the probe include agency approvals? The “CN” suffix indicates country-specific approvals; refer to certificate for exact regions.

Author: Ubest Automation – your source for genuine Bently Nevada 330172-00-12-50-01-CN and other 3300 5mm Proximity Probes.

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