Product Overview of Bently Nevada 9200-01-50-01-04

The Bently Nevada 9200-01-50-01-04 is a two-wire velocity seismoprobe transducer. This sensor measures absolute casing vibration on rotating machinery. The 9200-01-50-01-04 delivers reliable data for predictive maintenance programs. It works well on turbines, compressors, pumps, and fans.

Key Technical Specifications

Sensitivity: 20 mV/mm/s (500 mV/in/s) with ±5% tolerance. This rating applies when properly terminated and oriented at calibration angle.

Velocity Range: 25 mm/s (1 in/s) at +22°C casing vibration at 100 Hz with a 10 kΩ load.

Dynamic Operating Range: 2.54 mm (0.100 in) peak to peak maximum displacement.

Coil Resistance: 1.25 kΩ ±5%. Locked coil inductance is 125 mH typical.

Calibration Load: 10 kΩ between Terminal A and Terminal B. Output measurement occurs across pins A and B.

Sensitivity Temperature Coefficient: 0.2% per degree Celsius for stable readings across temperature changes.

Operating and Storage Temperature: -29°C to +121°C (-20°F to +250°F) for the 9200 series.

Environmental Protection: Dust and moisture resistant construction. Relative humidity tolerance reaches 95% noncondensing. With the integral cable, the unit withstands 100% humidity non-submerged.

Housing Material: Case uses anodized aluminum A204. Gasket material is neoprene for reliable sealing.

Dimensions and Weight: Height measures 102 mm (4 inches) typical depending on connector option. Diameter is 41 mm (1.6 inches) typical. Weight equals 300 grams (10.5 ounces).

Ordering Information Breakdown

The Bently Nevada 9200-01-50-01-04 includes these factory options:

• Transducer Mounting Angle/Minimum Operating Frequency Option 01: 0 ±2.5, 4.5 Hz (270 cpm).
• Connector Option 50: 50 feet (15.2 meters) integral cable.
• Mounting Base Option 01: Circular base with 1/4-20 UNC stud.
• Agency Approval Option 04: ATEX/IECEx certified for hazardous locations.

Installation Guidelines

Mount the 9200-01-50-01-04 directly on the machine casing. Use the 1/4-20 UNC stud on the circular base. Ensure the mounting surface is clean and flat. Orient the transducer at the calibrated angle for accurate sensitivity. Route the 50-foot integral cable away from high heat sources. Secure the cable to prevent vibration damage. Connect pins A and B to a 10 kΩ termination load. Verify proper grounding before powering the monitoring system. Keep the connector dry during installation. Do not exceed the maximum displacement of 2.54 mm peak to peak.

Package Contents (No certificates, No warranty clauses, No courier info)

• 1 x Bently Nevada 9200-01-50-01-04 velocity transducer
• 1 x 50-foot (15.2 meter) integral cable with connector
• 1 x circular mounting base with 1/4-20 UNC stud
• 1 x neoprene gasket for sealing
• 1 x installation instruction sheet

Frequently Asked Questions (FAQ)

1. What types of machines use the Bently Nevada 9200-01-50-01-04?

This Bently Nevada 9200-01-50-01-04 monitors turbines, compressors, pumps, fans, and motors for casing vibration.

2. Can this transducer work in high temperature environments?

Yes, the 9200-01-50-01-04 operates from -29°C to +121°C. For higher temperatures up to 204°C, use model 74712.

3. What termination load does this sensor require?

You need a 10 kΩ load between Terminal A and Terminal B for proper sensitivity calibration.

4. Is the 50-foot cable replaceable in the field?

No, the cable is integral and factory sealed. You must replace the entire Bently Nevada 9200-01-50-01-04 unit if the cable fails.

5. Does this model carry ATEX approval for hazardous areas?

Yes, option 04 provides full ATEX and IECEx certification for use in explosive atmospheres.

Application Scenarios

The Bently Nevada 9200-01-50-01-04 excels in predictive maintenance programs. Oil and gas facilities use it on critical rotating equipment. Power plants install these sensors on steam turbines and feed pumps. Paper mills monitor dryer rolls and calendar stacks. The ATEX approval allows installation in petrochemical refineries. The two-wire design simplifies wiring to existing monitoring systems. The 50-foot cable reaches distant junction boxes without extension cables.

Environmental Robustness & Compliance

This 9200-01-50-01-04 transducer withstands dusty industrial environments. The anodized aluminum case resists corrosion. Neoprene gaskets prevent moisture ingress. Relative humidity up to 95% noncondensing does not affect operation. With the integral cable option, the unit handles 100% humidity without submersion. The sensitivity temperature coefficient of 0.2%/°C ensures stable readings across the full -29°C to +121°C range. ATEX/IECEx approval meets Zone 1 and Zone 2 hazardous area requirements.

Compatibility Information

The Bently Nevada 9200-01-50-01-04 works with most Bently Nevada monitoring systems. Use it with 1900/65A, 3500, and 2300 series monitors. The 20 mV/mm/s output matches standard velocity input cards. The 10 kΩ termination load requirement matches Bently Nevada barrier and monitor inputs. For legacy systems, verify the input impedance before connecting.

Conclusion

The Bently Nevada 9200-01-50-01-04 delivers accurate casing velocity measurements for machine protection. Its ATEX approval and wide temperature range make it suitable for demanding applications. The two-wire design simplifies installation and reduces wiring costs. For reliable vibration monitoring on rotating machinery, this transducer remains a trusted industry standard.