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330851-01-000-020-10-00-00

3300 XL 25 mm 1 1/4-12 threaded proximity probe
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Product Describe:

Bently Nevada 330851-01-000-020-10-00-00 is a 3300 XL 25 mm 1 1/4-12 threaded proximity probe. It measures large-range shaft or rotor displacement without contact for a matched 3300 XL 25 mm Proximitor Sensor and monitor channel.
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Technical specifications for 330851-01-000-020-10-00-00

  • Manufacturer:
    Bently Nevada
  • Product Category:
    Machinery Monitoring Systems
  • Spare Part Number:
    330851-01-000-020-10-00-00
  • Estimated shipping dimensions:
    23x23x4.5cm
  • Weight:
    0.54 kg
  • Tariff Code:
    8537101190
  • Counliy of origin:
    USA
  • Probe model:
    330851
  • Probe case:
    1 1/4-12 threaded
  • Unthreaded length:
    0
  • Overall case length:
    2.0 in
  • Total probe length:
    1.0 m (3.3 ft)
  • Armor:
    No
  • Agency approval option:
    Not required
  • Probe tip material:
    PEEK
  • Probe case material:
    AISI 304 stainless steel
  • Probe cable:
    75 Ohm PFA FluidLoc
  • Probe operating temperature:
    -35 to +200 degC
  • Short-term probe temperature:
    +250 degC maximum for less than 24 h
  • Power without barriers:
    -17.5 to -26 V DC; 12 mA maximum
  • Power with barriers:
    -23 to -26 V DC
  • Supply sensitivity:
    <2 mV/V
  • Output resistance:
    50 Ohm
  • Field-wire conductor range:
    0.2 to 1.5 mm2 (16 to 24 AWG)
  • Maximum field-wire length:
    305 m (1000 ft)
  • Linear range:
    12.7 mm (500 mils)
  • Linear-range limits:
    0.63 to 13.33 mm (25 to 525 mils)
  • Average scale factor:
    0.787 V/mm (20 mV/mil)
  • Frequency response:
    0 to 2.7 kHz; +0/-3 dB
  • Minimum target diameter:
    61 mm (2.4 in)
  • Extension-cable capacitance:
    69.9 pF/m typical
  • Minimum bend radius:
    25.4 mm (1.0 in)

Information

Overview Manuals Common Applications Product Precautions
Bently Nevada 330851-01-000-020-10-00-00 is 3300 xl 25 mm 1 1/4-12 threaded proximity probe. It measures large-range shaft or rotor displacement without contact for a matched 3300 XL 25 mm Proximitor Sensor and monitor channel.
  • Uses the documented 1 1/4-12 threaded case
  • Provides a 2.0 in case with a one-metre lead
  • Uses a PEEK sensing tip for the large target range
  • Forms the probe element of a matched 25 mm measurement system

330851-01-000-020-10-00-00 operates with 3300 XL 25 mm Proximitor Sensor, matched 25 mm extension cable, 61 mm or larger steel target, compatible displacement monitor.

Engineered applications include Steam-turbine differential expansion, Large-shaft axial position, Rotor travel observation, 25 mm probe-loop replacement.

Important Notice: Confirm the 1 1/4-12 threaded case, 2.0 in length, one-metre FluidLoc lead and complete five- or nine-metre matched system before setting the operating gap.

Apter Power 330851-01-000-020-10-00-00 Manuals and Guides

Apter Power 330851-01-000-020-10-00-00 System and Technical Reference PDFBently Nevada 330851-01-000-020-10-00-00 Official Engineering Document PDF

The first document provides model-specific technical and system-reference information. The second is the directly related manufacturer document used for installation, configuration and engineering verification.

Steam-turbine differential expansion

Tracks large thermal movement of a turbine rotor.

Large-shaft axial position

Measures axial travel over the documented 25 mm system span.

Rotor travel observation

Supports displacement trending for large steel targets.

25 mm probe-loop replacement

Restores the mechanical sensing element of a matched loop.

Read the applicable Bently Nevada instructions before work. Verify 330851-01-000-020-10-00-00 and the installed 3300 XL 25 mm Proximity Transducer System configuration.
1

Verify the complete 330851-01-000-020-10-00-00 marking and 1 1/4-12 threaded execution before work.

2

Place the monitored machine and protection channel in the approved maintenance state.

3

Protect the sensing tip, threads and mounting surface from impact, burrs and contamination.

4

Route and support the 1.0 m lead without sharp bends, crushing, tensile load or contact with moving parts.

5

Keep coaxial connector faces clean, dry and mechanically unloaded during handling.

6

Confirm the matched 3300 XL 25 mm electronics, total system length and target material before setting gap.

7

Preserve the documented probe separation and cable shielding arrangement during installation.

8

Prove gap voltage, polarity, dynamic response and alarm action before returning the channel to service.

Technical notes

Confirm the 1 1/4-12 threaded case, 2.0 in length, one-metre FluidLoc lead and complete five- or nine-metre matched system before setting the operating gap.

FAQ View All FAQ

  • What is the documented system role of 330851-01-000-020-10-00-00?
    330851-01-000-020-10-00-00 is 3300 xl 25 mm 1 1/4-12 threaded proximity probe. It measures large-range shaft or rotor displacement without contact for a matched 3300 XL 25 mm Proximitor Sensor and monitor channel.
  • Which host hardware must be matched with 330851-01-000-020-10-00-00?
    Match 330851-01-000-020-10-00-00 with the documented 3300 XL 25 mm Proximity Transducer System and the installed 3300 XL 25 mm Proximitor Sensor, matched 25 mm extension cable.
  • How should the complete 330851-01-000-020-10-00-00 identification be verified?
    Compare the full marking with the controlling 163236 Rev. M record; the documented probe model is 330851.
  • What connection check is required before installing 330851-01-000-020-10-00-00?
    Route and support the 1.0 m lead without sharp bends, crushing, tensile load or contact with moving parts.
  • How should 330851-01-000-020-10-00-00 be protected during handling?
    Keep coaxial connector faces clean, dry and mechanically unloaded during handling.
  • What configuration must be restored after replacing 330851-01-000-020-10-00-00?
    Confirm the matched 3300 XL 25 mm electronics, total system length and target material before setting gap.
  • What commissioning test is required for 330851-01-000-020-10-00-00?
    Prove gap voltage, polarity, dynamic response and alarm action before returning the channel to service.
  • Can 330851-01-000-020-10-00-00 replace a visually similar part directly?
    No direct substitution should be assumed. Match the complete 330851-01-000-020-10-00-00 code, interfaces, system length or mounting arrangement, and the approved host configuration.
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