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bently nevada 3300 xl 50 mm 330878 x0 00 mod 177889 01 proximitor sensor-0

BENTLY NEVADA

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Bently Nevada 3300 XL 50 mm 330878-X0-00 MOD:177889-01 Proximitor Sensor

330878-X0-00 MOD:177889-01
Bently Nevada 3300 XL 50 mm Proximitor Sensor
50 mm systemPanel mount familyNo approvals
Selection note: Confirm the complete part number, installed interface and approval requirements before quotation.
  • Overview
  • Features
  • Functions
  • Specifications
  • Installation & Wiring
  • Theory of Operation
  • Technical Data Summary
  • FAQ
  • Models
  • Recommended Products
Description

The 3300 XL 50 mm transducer system consists of a 50 mm probe, extension cable and 3300 XL 50 mm Proximitor Sensor. The Proximitor accepts one noncontacting probe-and-cable assembly and converts the proximity signal for monitoring use. In 330878-X0-00, the X character leaves the exact 5 m or 9 m system-length choice unresolved; the fixed 0 identifies the panel-mount family option. Option 00 means no approvals. MOD 177889-01 is subject to nameplate and documentation verification.

Applications
  • Differential expansion measurement on large steam turbine generators.
  • Rotor expansion measurement where long linear range is required.
  • Single-transducer or complementary-input arrangements observing a collar or ramp.
  • Upgrade applications only when all probe, extension-cable and Proximitor components are replaced with compatible 3300 XL 50 mm parts.

Features

Features
System interface
Accepts one 3300 XL 50 mm probe and compatible extension cable.
Mounting
Thin panel-mount Proximitor configuration; exact X system length is subject to verification.
Linear range
27.9 mm (1100 mils).
Scale factor
394 mV/mm (10 mV/mil) nominal.
Connections
SpringLoc terminals support field wiring without special installation tools.
Immunity
Improved RFI/EMI immunity and European CE-mark compliance.
Calibration
Factory calibration defaults to an AISI 4140 steel target.

Functions

Functions

The probe and extension cable form an eddy-current proximity transducer with the Proximitor Sensor. The system measures the changing distance to a conductive target. The Proximitor conditions this signal into a voltage suitable for differential-expansion or rotor-expansion monitoring. Correct system length, target material, probe position and cable matching are required for the documented performance.

Specifications

Specifications
Power without barriers
-17.5 to -26 Vdc, 12 mA maximum.
Power with barriers
-23 to -26 Vdc.
Output resistance
50 ohm.
Linear range
1.3 to 29.2 mm from target, approximately -1.5 to -12.5 Vdc.
Recommended target
AISI 4140 steel, 102 mm diameter or larger.
Extension-cable capacitance
69.9 pF/m typical.
Field wiring
0.2 to 1.5 mm2 (16 to 24 AWG), shielded three-conductor triad recommended.
Proximitor material
A380 aluminum.
System length
5 or 9 m, exact X option subject to verification.

Installation & Wiring

Installation & Wiring
  1. Confirm whether X0 represents the required 5 m or 9 m panel-mount system.
  2. Match the probe plus extension-cable length to the Proximitor total system length.
  3. Use a compatible 3300 XL 50 mm probe and extension cable; do not mix incompatible systems.
  4. Confirm the AISI 4140 target size and required measurement range.
  5. Use the recommended shielded triad for field wiring.
  6. Verify operation initially and periodically by physically moving the transducer relative to the collar.
  7. Confirm MOD 177889-01 and approval requirements before quotation.

Theory of Operation

Theory of Operation

A high-frequency oscillator in the proximity system produces an eddy-current field at the probe tip. Changes in distance to the conductive target alter the system response. The Proximitor converts this change to a proportional voltage. The 50 mm coil geometry provides the long linear range required for large differential-expansion measurements.

Technical Data Summary

Technical Data Summary
Probe temperature
-35 to +200 degrees C continuous; +250 degrees C for less than 24 hours.
Proximitor operating temperature
-51 to +100 degrees C.
Probe-tip material
Polyphenylene sulfide.
Probe-case material
AISI 304 stainless steel.
Cable construction
75-ohm PFA-insulated FluidLoc cable.
Minimum bend radius
25.4 mm.
Agency option
00 means no approvals.
Availability and condition
Confirm before quotation; condition is subject to verification.

FAQ

FAQ

Is physical stock confirmed? Confirm before quotation.

Is the item new, used or refurbished? Subject to verification.

Can current item and nameplate photographs be supplied? Available on request.

What warranty applies? Available on request and stated in the quotation.

What is the dispatch time? Confirm before quotation.

Has the item been tested? Test status and scope are subject to verification.

Which payment methods are accepted? Available on request and stated in the proforma invoice.

How quickly is a quotation issued? Response timing depends on configuration and availability verification.

How is the transaction documented? Request an itemized quotation, company details, invoice, current photographs and available shipment records.

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