High-temperature Two-wire Transducer | 74712-06-12-04-CN

Overview:

The Bently Nevada 74712-06-12-04-CN is a high-temperature, two-wire velocity transducer designed for precision monitoring in industrial machinery. Manufactured in the U.S.A., this transducer features an isolated circular mounting base and side-mount connectors, with country-specific agency approvals. It operates effectively at high temperatures, ensuring reliable performance in demanding environments.

Key Features:

• High-Temperature Performance: Operates in a wide range of temperatures from -29°C to +204°C (-20°F to +400°F).
• High Sensitivity: 20 mV/mm/s (500 mV/in/s), ±5% sensitivity with proper termination and orientation.
• Shock Resistance: Withstands up to 50 g peak acceleration along non-sensitive axes.
• Mounting Options: Features isolated circular base with ½-in 20 thread, ensuring secure installation.
• Long Lead Wire Length: 305 meters (1,000 feet) maximum for flexible system setup.

Technical Specifications:

• Brand: Bently Nevada
• Model: 74712-06-12-04-CN
• Transducer Type: High-temperature two-wire transducer
• Sensitivity: 20 mV/mm/s (500 mV/in/s) ±5%
• Frequency Response: 4.5 to 1000 Hz (270 to 60,000 CPM) +0, -3 dB typical.
• Temperature Coefficient: 0.2%/°C
• Dynamic Operating Range: 2.54 mm (0.100 in) peak-to-peak maximum displacement
• Velocity Range: 25 mm/s (1 in/s)
• Coil Resistance: 1.25 kΩ ±5%
• Amplitude Linearity: ±5% from 0.01 to 5.0 in/s (0.254 to 127 mm/s) at 100 Hz (6000 CPM)
• Environmental Limits: Operating Temperature: -29°C to +204°C; Storage Temperature: -29°C to +204°C
• Material: Anodized aluminum housing with silicone gasket, cadmium-plated aluminum connector, neoprene, and silver-plated copper.
• Size: 102 mm (4 in) height; 41 mm (1.6 in) diameter.
• Weight: 480 grams (17 ounces)
• Agency Approval Option: Country-specific approvals (CN)

FAQ:

1. What is the operating temperature range?
   • The Bently Nevada 74712-06-12-04-CN transducer operates between -29°C and +204°C (-20°F to +400°F).
2. What is the lead wire length?
   • The maximum lead wire length is 305 meters (1,000 feet). Ensure to consult the manual for any potential frequency roll-off over longer lengths.
3. Can I use this in high-vibration environments?
   • Yes, this transducer is designed to withstand vibration at up to 100 Hz (6000 CPM) with 25 mm/s (1 in/s) casing vibration.
4. What is the sensitivity of the transducer?
   • The transducer has a sensitivity of 20 mV/mm/s (500 mV/in/s), with ±5% accuracy when properly terminated.

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