330709 Bently Nevada 3300 XL 11 mm Proximity Probe – full specification

Complete suffix information (330709-000-230-50-01-05)

• 330709 = 3300 XL 11 mm Probe, M16x1.5 thread, without armor
  • 000 = Unthreaded length option : 0 mm
  • 230 = Overall case length option : 230 mm
  • 50 = Total length option : 5.0 meters (16.4 ft) – designed for five‑meter Proximitor only.
  • 01 = Connector and cable type: Miniature coaxial ClickLoc connector with connector protector, standard cable.
  • 05 = Agency approval option : Multiple approvals (ATEX, IECEx, etc.)

Technical specifications – brand: Bently Nevada – model: 330709

• Probe DC resistance (5m length): 7.2 ±0.8 Ω from center conductor to outer conductor.
• Target size – flat surface recommended min.: 30.5 mm diameter; shaft min. 152 mm diameter.
• Tip material: Polyphenylene sulfide (PPS); probe case: AISI 304 stainless steel.
• Cable specification: 75 Ω triaxial, FEP insulated, available in 1, 5 or 9 m total lengths (this unit 5 m).
• Temperature range (operating/storage): -52°C to +177°C (-62°F to +351°F). Avoid below -34°C to prevent pressure seal stress.
• Temperature classifications (EPL Ga/Gc): T1 (up to +232°C), T2 (up to +177°C), T3 (up to +120°C), T4 (up to +80°C), T5 (up to +40°C).
• For EPL Dc: T280°C @ Ta (-55 … +232°C), T225°C @ Ta (-55 … +177°C), T170°C @ Ta (-55 … +120°C), T130°C @ Ta (-55 … +80°C), T105°C @ Ta (-55 … +100°C), T90°C @ Ta (-55 … +40°C).
• Thread specification: M16x1.5 probe case thread; max. thread engagement 24 mm.
• Torque ratings: Recommended probe case torque 21.1 N·m (187 in·lb); maximum rated 63.3 N·m (560 in·lb). Connector‑to‑connector torque: finger tight recommended, max 0.565 N·m (5 in·lb).
• Minimum bend radius: 25.4 mm (1.0 in) – with or without armor.

Frequently asked questions – 330709 proximity probe

• Q: Can I use this 5‑meter probe with a 9‑meter Proximitor? No – the 5‑meter probe requires the dedicated five‑meter Proximitor sensor (Bently Nevada part series).
• Q: What is the resistance value I should measure at the connector? Expect 7.2 ±0.8 ohms between center and outer conductor at 20°C for the 5‑meter length.
• Q: Does the probe come with stainless steel armor? The suffix “without armor” (000) means this variant has no armor. For armored version, order different unthreaded length option.

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