Overview

The 3300 XL 25 mm Transducer System consists of the following components:

• A separate 25 mm probe
• An extension cable
• A 3300 XL 25 mm Proximitor Sensor

This system features a 0.787 V/mm (20 mV/mil) output, providing a linear measurement range of 12.7 mm (500 mils). It is suitable for measuring differential expansion (DE) in midsize to large steam turbine generators, caused by differing growth rates between the turbine rotor and the machine stator (casing).

Specifications

Proximitor Sensor

• Input: Accepts one noncontacting 3300 XL 25 mm Proximity Probe and Extension Cable.
• Power:
  • Requires -17.5 Vdc to -26 Vdc without barriers, with a maximum consumption of 12 mA.
  • -23 Vdc to -26 Vdc with barriers.
  • Operation above -23.5 Vdc may reduce linear range.
• Supply Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage.
• Output Resistance: 50 Ω

Probe

• Tip Material: Polyetheretherketone (PEEK)
• Case Material: AISI 304 stainless steel (SST)
• Cable Specifications:
  • 75 Ω triaxial
  • Perfluoroalkoxyethylene (PFA) insulated FluidLoc probe cable available in lengths of 1, 5, or 9 meters.

Extension Cable

• Material:
  • 75 Ω triaxial
  • Perfluoroalkoxyethylene (PFA) insulated FluidLoc cable.

Proximitor Sensor Material

• Material: A380 aluminum

Sliding Bracket Material: Anodized aluminum and stainless steel

Operating Temperature: -51°C to +100°C (-60°F to +212°F)

Storage Temperature: -51°C to +105°C (-60°F to +221°F)