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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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Technical specifications for 74712-01-10-02-00
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Product Model74712-01-10-02-00
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Product ParametersHigh-temperature Two-wireTransducer
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size10x4x4cm
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ManufacturerBently Nevada
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Weight0.44 kg
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Transducer Mounting Angle0 ±2.5, 4.5 Hz (270 cpm)
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Mounting Base OptionCircular; M10X1 stud
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Connector OptionTop Mount
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Agency Approval OptionNo Approvals
Description
The Bently Nevada 74712-01-10-02-00 is a high-temperature two-wire Seismoprobe Velocity Transducer designed to measure absolute (relative to free space) bearing housing, casing, or structural vibration in demanding industrial environments. The 74712-01-10-02-00 is the high-temperature version of the 9200 Seismoprobe, featuring a standard temperature range of -20°F to +400°F (-29°C to +204°C), making it suitable for continuous monitoring in extreme thermal conditions where standard velocity transducers would fail.
The 74712-01-10-02-00 uses moving-coil technology to provide a voltage output directly proportional to the transducer's vibration velocity. Because the 74712-01-10-02-00 is a self-generating design, it does not require external power, making it convenient for both continuous monitoring installations and periodic measurements in conjunction with portable test or diagnostic instruments. The 74712-01-10-02-00 is less sensitive to impact or impulsive excitation than solid-state velocity transducers, which are inherently accelerometers with embedded integration electronics, representing a good choice for certain applications where mechanical shocks are present.
The 74712-01-10-02-00 uses moving-coil technology to provide a voltage output directly proportional to the transducer's vibration velocity. Because the 74712-01-10-02-00 is a self-generating design, it does not require external power, making it convenient for both continuous monitoring installations and periodic measurements in conjunction with portable test or diagnostic instruments. The 74712-01-10-02-00 is less sensitive to impact or impulsive excitation than solid-state velocity transducers, which are inherently accelerometers with embedded integration electronics, representing a good choice for certain applications where mechanical shocks are present.
Information
Overview
Manuals
Application Notes
Product Applications
Transducer Insertion & Mounting
Features:
- High-Temperature Two-Wire Moving-Coil Velocity Transducer
- Absolute Vibration Measurement Relative to Free Space
- Self-Generating Moving-Coil Design with No External Power Required
- Less Sensitive to Impact or Impulsive Excitation
- Wide Frequency Response with Multiple Low-Frequency Cutoff Options
The sensitivity of the 74712-01-10-02-00 is 20 mV/mm/s (500 mV/in/s) ± 5% when properly terminated and oriented at the angle of calibration. The frequency response of the 74712-01-10-02-00 spans from 4.5 to 1,000 Hz (270 to 60,000 cpm) with a +0, –3 dB typical response. The dynamic operating range of the 74712-01-10-02-00 is 2.54 mm (0.100 in) peak-to-peak maximum displacement, and the transducer can measure casing vibration up to 25 mm/s (1 in/s) at 100 Hz with a 10 kΩ load. The coil resistance of the 74712-01-10-02-00 is 1.25 kΩ ± 5%, and the locked coil inductance is 125 mH typical.
The 74712-01-10-02-00 Bently Nevada High-temperature Two-wireTransducer may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 74712-01-10-02-00 High-temperature Two-wireTransducer Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Moving-coil transducers such as the 74712-01-10-02-00 are less sensitive to impact or impulsive excitation than solid-state velocity transducers, which are inherently accelerometers with embedded integration electronics. Because the 74712-01-10-02-00 does not require external power, it is convenient for portable measurement applications as well as continuous monitoring installations. The 74712-01-10-02-00 can be used with up to 305 meters (1,000 feet) of lead wire between the transducer and the monitor, though frequency roll-off may occur at longer lengths.
The 74712-01-10-02-00 operates and stores within a temperature range of –29°C to +204°C (–20°F to +400°F). The transducer is dust and moisture resistant. The sensitivity temperature coefficient of the 74712-01-10-02-00 is 0.2%/°C. The physical dimensions of the 74712-01-10-02-00 are approximately 102 mm (4 in) in height and 41 mm (1.6 in) in diameter, with a typical weight of 480 grams (17 oz).
- Steam/Gas Turbines: Monitors radial vibration and axial thrust in fluid-film bearings
- Generators: Tracks thermal expansion and shaft dynamics to prevent rotor-stator rubbing
- Hydro Turbines: Measures alignment, runout, and structural vibration of main shaft
- Centrifugal Compressors: Continuously tracks shaft vibration to prevent catastrophic failure
- Turboexpanders: Measures high-speed rotor stability and provides speed/overspeed data
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Mounting Base: The 74712 typically utilizes a mounting base option (such as a 1/2-in 20 UNF-3A stud or M10x1) to screw directly into a tapped hole on the machine casing.
Mounting Torque: For standard threaded studs (e.g., 8-32), tighten to 1.41 N•m (12.5 in•lb). For larger mounting bases, torque to 5.6 N•m (50 in•lb).
Orientation & Angle: The transducer must be oriented properly along the axis of the vibration you intend to measure (e.g., horizontal, vertical, or axial). Most machine malfunctions originate at the rotor and transmit through the housing.
Frequency Response: Ensure the transducer's minimum operating frequency (e.g., 10 Hz) is compatible with the rotational speed of your machinery to avoid inaccurate readings
Alternative Names
74712-01-10-02-OO
74712-01-10-OZ-00
74712-01-IO-02-00
74712-OI-10-02-00
747I2-01-10-02-00
7471Z-01-10-02-00
74712 01 10 02 00
74712 01 10 02 OO
74712 01 10 OZ 00
74712 01 IO 02 00
74712 OI 10 02 00
7471Z 01 10 02 00
747I2 01 10 02 00
74712-01-10-02-01
74712-01-10-02-04
Technical notes
The 74712-01-10-02-00 provides a sensitivity of 20 mV/mm/s (500 mV/in/s) ±5% and can measure vibration up to 254 mm/s (10 in/s) peak. The frequency response of the 74712-01-10-02-00 is characterized by available low-frequency cutoff options at 270 CPM (4.5 Hz), 600 CPM (10 Hz), and 900 CPM (15 Hz), with the high-frequency response extending to approximately 1000 Hz (60,000 CPM) at the -3 dB point. The coil resistance of the 74712-01-10-02-00 is 2.4 kΩ ±5%, and the transducer is specified for mounting orientations from 0° (vertical) through 180°.
FAQs
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What is the 74712-01-10-02-00?
+The Bently Nevada 74712-01-10-02-00 is a high-temperature, two-wire Seismoprobe Velocity Transducer used to measure absolute vibration velocity in critical industrial machinery. -
What is the difference between the 74712 and the 9200?
+The 74712 is a high-temperature version of the standard Bently Nevada 9200 Seismoprobe. While the 9200 is rated for maximum temperatures of +121°C (+250°F), the 74712 is engineered to withstand much hotter environments up to +204°C (+400°F). -
Does the 74712 require an external power supply?
+No. Because it uses moving-coil technology, the transducer is self-generating and requires no external power. This makes it highly convenient for both continuous monitoring and portable measurements. -
What is the operating temperature range?
+It functions continuously between -29°C and +204°C (-20°F to +400°F). This makes it the ruggedized, high-heat version of the standard Bently Nevada 9200 series, which maxes out at +121°C.
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