330850-90-00 25 mm Proximitor Sensor Bently Nevada

Product Description

Configured for differential-expansion measurement in the 3300 XL 25 mm transducer system, the Bently Nevada 330850-90-00 (330850 Proximitor Sensor) conditions the probe signal from one matched 25 mm probe and extension cable. The ordering code specifies a 9.0 m system length, panel mounting, and no approvals.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage

The 330850-90-00 conditions the eddy-current signal from a matched 3300 XL 25 mm probe and extension cable. The complete chain converts target distance into a voltage signal for the connected monitoring channel. The nominal scale factor is 0.787 V/mm (20 mV/mil), while the stated system linear range is 12.7 mm (500 mils) under manufacturer reference conditions.

The supply range is -17.5 to -26 VDC without barriers. However, the linear range may decrease when the supply rises above -23.5 V. Therefore, verify the actual supply voltage during commissioning and confirm the probe, extension cable, and Proximitor Sensor form the specified electrical length.

The standard calibration target uses Bently Nevada AISI 4140 steel. Other target materials can change eddy-current response, so calibration requirements must be reviewed before applying a different target material.

Frequently Asked Questions

Q: What probe connects to the 330850-90-00?

A: The sensor accepts one matched 3300 XL 25 mm probe with its corresponding extension cable. The complete system must use the specified electrical length.

Q: What supply voltage does the sensor require?

A: The specified supply range is -17.5 to -26 VDC without barriers. The linear range may reduce above -23.5 V.

Q: What field wiring length does the specification allow?

A: The specified maximum distance between the sensor and monitor is 305 m. High-frequency response depends on the actual wiring length.

Field Installation Guidelines

Mount the 330850-90-00 on the designated panel location and secure the wiring at the terminal strips. Use conductors within the specified 0.2-1.5 mm2 range, or 0.25-0.75 mm2 when using ferrules.

First, verify the complete probe, extension cable, and Proximitor Sensor ordering configuration. Next, confirm the 9.0 m system length before connecting the measurement channel. Keep the signal wiring separated from high-current and high-frequency power conductors to limit electrical interference.

Verify the negative DC supply voltage at the sensor terminals before commissioning. Also, confirm the sensor output response against the installed target and the applicable calibration reference. When the target material differs from AISI 4140 steel, review the required calibration before placing the channel into service.

The 00 approval option does not establish hazardous-area suitability. Apply the site electrical classification and the equipment approval requirements before installation in a classified location.

Other Attribute

• Series: 3300 System
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

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• - Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,
• - Bently Nevada 3300 System, 3500 System
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