Specifications

Unless otherwise noted, the following specifications are for a 3300 XL 50 mm Proximitor Sensor, extension cable and probe between 0°C and +45°C (+32°F to +113°F), with a -24 Vdc power supply, a 10 kΩ load, a Bently Nevada supplied AISI 4140 steel target that is 102 mm (4.0 in) diameter or larger. The system accuracy and interchangeability specifications do not apply when using a transducer system calibrated to any target other than a Bently Nevada AISI 4140 steel target.

Order information

3300 XL 50 mm Proximity Probe:
330876-AXX-BXX-CXX-DXX

Option Descriptions

A:Probe Case Type Option

01 ½-20 Thread-Straight Exit
02 M14x1.5 Thread-Straight Exit
03 Smooth 1.99 in dia-Side Exit

B:Total Length Option

10 1.0 metre (3.3 feet)
50 5.0 metres (16.4 feet)
90 9.0 metres (29.5 feet)

C:Armor Option

00 High Temperature FluidLoc Cable
01 High Temperature FluidLoc Cable with Armor

D:Agency Approval Option

00 No Approvals
05 Multiple Approvals (pending)

Models:

Description
The 3300 XL 50 mm Transducer System consists of a separate 50 mm probe, an extension cable, and a 3300 XL 50 mm Proximitor Sensor. The large diameter coil gives this system a maximum linear range of 27.9 mm (1100 mils), the longest linear range of Bently Nevada’s eddy current transducer line. This linear range makes the 3300 XL 50mm Transducer System ideal for measuring the differential expansion (DE) or rotor expansion (RX) of large steam turbine generators that results from the difference in growth rates between the turbine rotor and the machine stator (casing).

Measuring Differential Expansion The Differential Expansion measurement is made by using two proximity transducers that observe a collar or ramp some distance from the thrust bearing. Typical transducer mounting arrangements that require the 3300 XL 50 mm Transducer’s long linear range include:
• Two transducers observing the same side of a collar.
• Two complementary input transducers observing opposite sides of a collar, effectively doubling the measurable DE range.
The criteria for selecting a mounting method are the size of the available target, the expected amount of rotor axial movement, and the type of DE target that exists in the machine. If the collar height is sufficient and the required total measurement range is less than 1.1 inches (28 mm), the preferred configuration for redundant measurements is to use two transducers observing the same side of a collar. When 1.1 to 2.2 inches (28 mm to 56 mm) of total range are required, install the transducers in a complementary fashion on opposite sides of the rotor.

System Compatibility

The 3300 XL 50 mm probe comes in three case & thread configurations to physically replace all standard 7200 50 mm systems (including side and rear exit probes). The standard 7200 style mounting brackets are still available as accessories. In addition, a new bracket to adapt the probe to the 50mm DE Integral transducer sliding mount base is also available. The Proximitor Sensor has a 0.394 V/mm (10 mV/mil) output that is identical to that of the 7200 and 50 mm DE Integral systems, which allows customers to upgrade without requiring any changes in the monitor configuration. When upgrading from previous systems, every transducer system component (probe, extension cable, and Proximitor Sensor) must be replaced with 3300 XL 50 mm components.

Proximity Probe and Extension Cable

The 3300 XL 50 mm probe is designed to survive the harshest steam turbine DE environments. It can continually operate and maintain its accuracy in high temperatures up to 200 °C (392 °F), and can withstand intermittent high temperatures up to 250 °C (482 °F). The 50 mm probe has both a front and rear seal which, combined with the High Temperature FluidLoc cable (standard on all 50 mm probes), prevent moisture from entering the probe tip. Special high-temperature ClickLoc connectors are also standard on the probe and extension cable. Each probe and cable come with connector protectors and a disposable connector protector installation tool to ensure that the connectors remain free of contamination. The ClickLoc connector on the probe lead features a removable collar that facilitates routing the cable through tight clearances.

The 3300 XL 50 mm probe is available in straight exit case styles with ½-20 English threads or M14x1.5 metric threads, including a locknut with predrilled safety wire holes. The side exit probe has two ¼-20 mounting holes in the rear of the probe case. For both straight exit and side exit probes the overall case diameter is 1.99 inches.

Proximitor Sensor

The 3300 XL 50 mm Proximitor Sensor1 has the same advanced features as all 3300 XL Proximitor Sensors. Its thin design allows it to be mounted in either a high-density DIN-rail installation or a more traditional panel mount configuration. Improved RFI/EMI immunity allows the 3300 XL Proximitor Sensor to achieve European CE mark approvals without any special mounting considerations. This RFI immunity prevents the transducer system from being adversely affected by nearby high frequency radio signals. SpringLoc terminal strips on the Proximitor Sensor require no special installation tools and facilitate faster, highly robust field wiring connections.

Models :

330130-030-00-00;330130-030-00-05;330130-030-01-00;330130-030-01-05;330130-030-02-00;330130-030-02-05;
330130-030-03-00;330130-030-03-05;330130-030-10-00;330130-030-10-05;330130-030-11-00;330130-030-11-05;
330130-030-12-00;330130-030-12-05;330130-030-13-00;330130-030-13-05;330130-035-00-00;330130-035-00-05;
330130-035-01-00;330130-035-01-05;330130-035-02-00;330130-035-02-05;330130-035-03-00;330130-035-03-05;
330130-035-10-00;330130-035-10-05;330130-035-11-00;330130-035-11-05;330130-035-12-00;330130-035-12-05;
330130-035-13-00;330130-035-13-05;330130-040-00-00;330130-040-00-05;330130-040-01-00;330130-040-01-05;
330130-040-02-00;330130-040-02-05;330130-040-03-00;330130-040-03-05;330130-040-10-00;330130-040-10-05;
330130-040-11-00;330130-040-11-05;330130-040-12-00;330130-040-12-05;330130-040-13-00;330130-040-13-05;
330130-045-00-00;330130-045-00-05;330130-045-01-00;330130-045-01-05;330130-045-02-00;330130-045-02-05;
330130-045-03-00;330130-045-03-05;330130-045-10-00;330130-045-10-05;330130-045-11-00;330130-045-11-05;
330130-045-12-00;330130-045-12-05;330130-045-13-00;330130-045-13-05;330130-060-00-00;330130-060-00-05;
330130-060-01-00;330130-060-01-05;330130-060-02-00;330130-060-02-05;330130-060-03-00;330130-060-03-05;
330130-060-10-00;330130-060-10-05;330130-060-11-00;330130-060-11-05;330130-060-12-00;330130-060-12-05;
330130-060-13-00;330130-060-13-05;330130-075-00-00;330130-075-00-05;330130-075-01-00;330130-075-01-05;
330130-075-02-00;330130-075-02-05;330130-075-03-00;330130-075-03-05;330130-075-10-00;330130-075-10-05;
330130-075-11-00;330130-075-11-05;330130-075-12-00;330130-075-12-05;330130-075-13-00;330130-075-13-05;
330130-070-00-00;330130-070-00-05;330130-070-01-00;330130-070-01-05;330130-070-02-00;330130-070-02-05;
330130-070-03-00;330130-070-03-05;330130-070-10-00;330130-070-10-05;330130-070-11-00;330130-070-11-05;
330130-070-12-00;330130-070-12-05;330130-070-13-00;330130-070-13-05330130-080-00-00;330130-080-00-05;
330130-080-01-00;330130-080-01-05;330130-080-02-00;330130-080-02-05;330130-080-03-00;330130-080-03-05;
330130-080-10-00;330130-080-10-05;330130-080-11-00;330130-080-11-05;330130-080-12-00;330130-080-12-05;
330130-080-13-00;330130-080-13-05;330130-085-00-00;330130-085-00-05;330130-085-01-00;330130-085-01-05;
330130-085-02-00;330130-085-02-05;330130-085-03-00;330130-085-03-05;330130-085-10-00;330130-085-10-05;
330130-085-11-00;330130-085-11-05;330130-085-12-00;330130-085-12-05;330130-085-13-00;330130-085-13-05