Bently Nevada 74712-02-11-02-00 | Two-wire Transducer

Overview

The Bently Nevada 74712-02-11-02-00 Seismoprobe is a high-temperature, two-wire transducer designed to measure velocity in industrial machinery. Offering exceptional performance with a wide frequency response, it is ideal for vibration monitoring and fault detection. The 74712 model features high sensitivity and a robust build, making it suitable for various demanding industrial environments.

Key Features

• High Temperature Range: Operates in temperatures from -29°C to +204°C (-20°F to +400°F).
• Sensitivity: 20 mV/mm/s (500 mV/in/s), ±5% with proper termination and orientation.
• Frequency Response: 4.5 to 1000 Hz (270 to 60,000 CPM), ±3 dB typical.
• Amplitude Linearity: ±5% from 0.01 to 5.0 in/s (0.254 to 127 mm/s) at 100 Hz.
• Shock Resistance: Withstands up to 50 g peak acceleration along non-sensitive axes.
• Mounting Options: Isolated circular base (M10X1), top mount connector, and various terminal block options.
• Environmental Durability: Silicone gasket, anodized aluminum A204 case, and cadmium-plated aluminum connector materials ensure longevity in harsh conditions.

Technical Specifications

• Brand: Bently Nevada
• Model: 74712-02-11-02-00
• Mounting Angle Option: 02 (45° ±2.5, 4.5 Hz)
• Coil Resistance: 1.25 kΩ ±5%
• Dynamic Range: 2.54 mm (0.100 in) peak-to-peak maximum displacement
• Velocity Range: 25 mm/s (1 in/s) at 100 Hz
• Inductance: 125 mH (typical)
• Shock Resistance: 50 g peak
• Connector Material: Cadmium-plated aluminum with neoprene and silver-plated copper
• Weight: 480 grams (17 oz) typical
• Dimensions: Height 102 mm (4 in), Diameter 41 mm (1.6 in)
• Lead Wire Length: Up to 305 meters (1000 feet)
• Storage and Operating Temperature: -29°C to +204°C (-20°F to +400°F)

FAQ

1. What is the maximum lead wire length?
   The maximum lead wire length is 305 meters (1000 feet). Please consult the manual for frequency roll-off at longer lengths.
2. What is the dynamic operating range of the Seismoprobe?
   The maximum dynamic range is 2.54 mm (0.100 in) peak-to-peak displacement.
3. Can the 74712 Seismoprobe withstand high shock loads?
   Yes, it can withstand up to 50 g peak acceleration along non-sensitive axes.
4. What is the sensitivity of the 74712 Seismoprobe?
   The sensitivity is 20 mV/mm/s (500 mV/in/s), ±5% when properly terminated and oriented at the angle of calibration.

Check official datasheet for more detailed information:9200 and 74712 Seismoprobe Velocity Transducers Datasheet