9200-06-01-11-04 Bently Nevada Seismoprobe Velocity Transducer

The Bently Nevada 9200-06-01-11-04 is a two-wire moving-coil velocity transducer designed to measure absolute vibration at bearing housings, machine casings and structural surfaces. It features a top-mounted connector without an integral cable, an isolated circular M10 x 1 mounting base and ATEX/IECEx approval. Its 20 mV/(mm/s) sensitivity supports vibration monitoring when used with the specified calibration and termination conditions.

Operating Principle and Measurement

The 9200 Seismoprobe uses an electrodynamic moving-coil mechanism to convert mechanical vibration into an electrical output. As the monitored structure vibrates, relative movement between the coil and magnetic assembly generates a signal proportional to vibration velocity.

Furthermore, its velocity output represents absolute casing or bearing-housing vibration rather than shaft-relative displacement. The 10 Hz minimum operating frequency defines the lower measurement limit for this configuration.

Configuration and Mounting

The complete order number identifies the mounting orientation, connector arrangement, base type and approval option:

• Mounting option 06: 0-degree mounting reference with a permitted orientation range of +/-100 degrees and a 10 Hz minimum operating frequency.
• Connector option 01: Top-mounted connector supplied without a cable. A separate cable must be selected.
• Base option 11: Isolated circular M10 x 1 mounting base.
• Approval option 04: ATEX/IECEx approval configuration.

In addition, the isolated base is specified for the 04 approval option. The mounting arrangement and approval configuration should therefore remain consistent when selecting replacement parts.

Electrical and Mechanical Characteristics

The transducer provides a nominal sensitivity of 20 mV/(mm/s), with a tolerance of +/-5% under the specified termination and calibration orientation conditions. A 10 kilohm calibration load must be connected across terminals A and B. The coil resistance and inductance provide additional reference values for electrical inspection and condition checks.

The maximum dynamic displacement is 2.54 mm peak-to-peak. Meanwhile, the recommended mounting torque for the M10 x 1 base is 5.6 N m.

Technical Specifications

Frequently Asked Questions

Q: What type of vibration does the 9200-06-01-11-04 measure?

A: It measures absolute vibration velocity at bearing housings, machine casings and structural mounting surfaces using a two-wire moving-coil sensing mechanism.

Q: Does this model include a connecting cable?

A: No. Connector option 01 specifies a top-mounted connector without a cable. Select a separate cable and verify its suitability for the transducer and monitoring input.

Q: What electrical load is required for calibration?

A: The specified calibration load is 10 kilohms across terminals A and B. The sensitivity tolerance of +/-5% applies under the proper termination and calibration orientation conditions.

Q: What mounting torque should be used?

A: The recommended base mounting torque is 5.6 N m for the M10 x 1 mounting option.