Overview

The Bently Nevada 3300 XL 50 mm Proximity Probe (Part Number: 330876-02-10-00-05) is a high-performance sensor designed to operate in extreme industrial environments, specifically in steam turbines and machinery with harsh conditions. This probe, made in the U.S.A., combines durability with precision, ensuring reliable measurement even in the most demanding applications.

Technical Specifications:

• Brand: Bently Nevada
• Model: 3300 XL
• Product Number: 330876-02-10-00-05
• Type: 50 mm Proximity Probe
• Made in: U.S.A.
• Probe Case Type: M14x1.5 Thread
• Total Length: 1.0 metre (3.3 feet)
• Armor: High Temperature FluidLoc Cable with Armor
• Agency Approval: No Approvals
• Weight: 0.59 kg

Power Requirements:

• Without Barriers: -17.5 Vdc to -26 Vdc, max 12 mA
• With Barriers: -23 Vdc to -26 Vdc
• Operating at a more positive voltage than -23.5 Vdc may reduce the linear range.

Output Resistance:

• 50 Ω

Extension Cable Capacitance:

• 69.9 pF/m (21.3 pF/ft, typical)

Field Wiring:

• Wire Size: 0.2 to 1.5 mm² (16 to 24 AWG)
• Recommended Cable: Three-conductor shielded triad cable

Linear Range:

• 27.9 mm (1100 mils): Begins at 1.3 mm (50 mils) from the target, extending up to 29.2 mm (1150 mils)
• Scale Factor (ASF): 394 mV/mm (10 mV/mil), nominal

System Performance at Extended Temperatures:

• Temperature Range:
  • Probe: -35°C to +120°C (-31°F to +248°F)
  • Proximitor Sensor and Extension Cable: 0°C to +45°C (+32°F to +113°F)
  • Deviation from Best Fit Line (DSL): Less than ±0.74 mm (±29 mils)

Recommended Minimum Target Size:

• 102 mm (4.0 in) diameter (flat target)

Extension Cable Material:

• PFA-insulated FluidLoc cable, with 75 Ω triaxial.

FAQ

1. What is the maximum temperature the Bently Nevada 3300 XL 50 mm probe can withstand?

   • The probe can operate continuously at temperatures up to 200°C (392°F) and withstand short periods up to 250°C (482°F).

2. What is the linear range of the probe?

   • The linear range is 27.9 mm (1100 mils), from 1.3 mm (50 mils) to 29.2 mm (1150 mils) from the target.

3. Does the probe come with agency approvals?

   • No, the probe does not have any agency approvals.

4. What type of cable is recommended for use with this probe?

   • It is recommended to use three-conductor shielded triad cable with a wire size range of 0.2 to 1.5 mm² (16 to 24 AWG).

5. What is the average scale factor of the probe?

   • The average scale factor is 394 mV/mm (10 mV/mil), nominal.