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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 190501-12-00-04
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Product Model190501-12-00-04
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Product ParametersVelomitor CT Transducer
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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 Size8.3x3.5x3.2cm
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ManufacturerBently Nevada
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Weight0.3 kg
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Mounting Hardware OptionPlate Stud 3/8-in 24 to M8x1
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Connection OptionMIL-C-5015 connection interface
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Agency Approval OptionCSA/NRTL/C (Class I, Division 1),ATEX/IECEx/CSA (Class I, Zone0/1)
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Sensitivity3.94 mV/mm/s (100 mV/in/s)±5%
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Output BiasVoltage10.1 Vdc ± 1.0 Vdc, Pin Areferenced to Pin B
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OperatingTemperature-40°C to +85°C(-40°F to +185°F)
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StorageTemperature-40°C to +100°C(-40°F to +212°F)
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Shock Limit5000 g pk, maximum
Description
The Bently Nevada 190501-12-00-04 Velomitor CT Transducer is a low-frequency velocity transducer specifically for measuring casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (1.5 Hz). 190501 is a specialized version of the standard Velomitor piezo-velocity sensor, engineered to address the unique challenges of monitoring low-speed rotating machinery where conventional velocity sensors lack sufficient low-frequency response.
190501-12-00-04 measures vibration amplitudes at frequencies from 1.5 Hz to 1,000 Hz (90 to 60,000 CPM), covering the fundamental rotational speed of slow-speed fans as well as the vibration frequencies generated by fan motor and speed reducer components. This low-frequency capability of 190501 is essential because most common machine maladies such as unbalance and misalignment occur on the rotor and originate as changes in rotor vibration.
The standard sensitivity of 190501-12-00-04 is 100 mV/(in/s) (4 mV/(mm/s)), providing a linear output proportional to vibration velocity across the specified frequency range. The amplitude linearity of 190501-12-00-04 is ±5% to 63.5 mm/s (2.5 in/s) peak-peak, with a transverse sensitivity of less than 5% of axial sensitivity. The frequency response of 190501-12-00-04 is 1.5 Hz to 1,000 Hz (±3 dB), with typical phase and amplitude response characteristics documented in the datasheet graphs. The resonant frequency of 190501 is 2,000 Hz nominal.
190501-12-00-04 measures vibration amplitudes at frequencies from 1.5 Hz to 1,000 Hz (90 to 60,000 CPM), covering the fundamental rotational speed of slow-speed fans as well as the vibration frequencies generated by fan motor and speed reducer components. This low-frequency capability of 190501 is essential because most common machine maladies such as unbalance and misalignment occur on the rotor and originate as changes in rotor vibration.
The standard sensitivity of 190501-12-00-04 is 100 mV/(in/s) (4 mV/(mm/s)), providing a linear output proportional to vibration velocity across the specified frequency range. The amplitude linearity of 190501-12-00-04 is ±5% to 63.5 mm/s (2.5 in/s) peak-peak, with a transverse sensitivity of less than 5% of axial sensitivity. The frequency response of 190501-12-00-04 is 1.5 Hz to 1,000 Hz (±3 dB), with typical phase and amplitude response characteristics documented in the datasheet graphs. The resonant frequency of 190501 is 2,000 Hz nominal.
Information
Overview
Manuals
Application Notes
Product Applications
Mechanical Insertion & Mounting
Features:
- Low-Frequency Velocity Measurement for Cooling Tower and Fan Applications
- 100 mV/(in/s) (4 mV/(mm/s)) Standard Sensitivity
- Piezo-Velocity Sensor Technology
- Wide Dynamic Range (63.5 mm/s peak-peak / 2.5 in/s peak-peak)
- Comprehensive Hazardous Area Approvals (CSA, ATEX, IECEx)
The Bently Nevada 190501-12-00-04 uses a plate stud mounting configuration (3/8-24 to M8 × 1) and a MIL-C-5015 connection interface. The Bently Nevada 190501-12-00-04 includes the 04 multiple approval option, allowing use in industrial installations requiring certified vibration monitoring components. The transducer features a 33 mm (1.3 in) mounting surface diameter and an overall height of 82 mm (3.2 in).
The 190501-12-00-04 Bently Nevada Velomitor CT Transducer may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 190501-12-00-04 Velomitor CT Transducer 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.
The Bently Nevada 190501-12-00-04 provides a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5% and supports a low-frequency response range of 3.0 Hz to 900 Hz within ±1.0 dB and 1.5 Hz to 1 kHz within ±3.0 dB. The Bently Nevada 190501-12-00-04 allows vibration measurement of cooling tower fan assemblies, fan motors, speed reducers, and other rotating equipment where low-frequency vibration signals are important for condition monitoring.
The Bently Nevada 190501-12-00-04 supports a maximum velocity measurement range of 63.5 mm/s peak (2.5 in/s peak) and maintains amplitude linearity within ±2% over this range. The Bently Nevada 190501-12-00-04 provides a transverse response of less than 5% of axial sensitivity and a broadband noise floor of approximately 0.229 mm/s peak (0.009 in/s peak) from 1.5 Hz to 1 kHz.
- Oil/Gas/Petrochemical: Monitors critical machinery processing volatile hydrocarbons in hazardous explosive zones
- Power Generation: Tracks turbine/generator shaft movements in thermal, nuclear, and hydro plants
- Chemical Processing: Resists corrosive vapors with PPS thermoplastic housing
- Water/Wastewater: Operates reliably in moisture/humidity/outdoor spaces with IP66 washdown protection
- Mining/Heavy: Withstands dust, abrasive particles, and extreme mechanical vibration
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.
Surface Preparation: Prepare a flat, smooth mounting surface with a minimum diameter of 33 mm (1.3 in). The surface must be clean and perpendicular to the axis of vibration.
Stud Installation: Thread the 3/8-in 24 to M8x1 adapter stud into the machined surface of your machine.
Transducer Insertion: Hand-thread the base of the transducer onto the exposed end of the plate stud.
Orientation: The sensor can be inserted and mounted at any orientation or angle.
Torque Specification: Tighten the transducer to exactly 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Do not over-torque, as it will distort the internal piezo-electric element.
Alternative Names
190501-12-00-O4
190501-12-OO-04
190501-1Z-00-04
190501-I2-00-04
19050I-12-00-04
1905O1-12-00-04
19O501-12-00-04
190501 12 00 04
190501 12 00 O4
190501 12 OO 04
190501 1Z 00 04
190501 I2 00 04
19050I 12 00 04
1905O1 12 00 04
19O501 12 00 04
I90501 12 00 04
190501-12-00-01
190501-12-00-CN
Technical notes
The environmental limits of 190501 include an operating temperature range of -55°C to +121°C (-67°F to +250°F) for standard configurations. The storage temperature range of 190501 is -55°C to +150°C (-67°F to +302°F). The relative humidity rating of 190501 is 100% condensing, with an IP rating of 66. The physical dimensions of 190501 are 82.2 mm (3.24 in) height for the standard version and 142.2 mm (5.60 in) height for the version with conduit adaptor. The case diameter of 190501 is 35.6 mm (1.40 in), with a hex flat of 31.8 mm (1.25 in). The weight of 190501 is 0.5 kg (1.1 lb).
FAQs
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What is the 190501-12-00-04?
+The Bently Nevada 190501-12-00-04 is a Velomitor CT Velocity Transducer specifically designed for low-frequency vibration monitoring (90+ RPM) on cooling towers and air-cooled heat exchangers. -
What are the main differences between standard Velomitor models and the Velomitor CT?
+Standard Velomitor sensors (like the 330500) are tuned for higher frequencies. The 190501 CT is a low-frequency version specially adjusted downward to measure vibrations on slow-moving fan blades and cooling towers (operating as low as 90 RPM). -
What are the environmental and temperature operating limits?
+The transducer can operate reliably in temperatures ranging from -40°C to +85°C (-40°F to +185°F) and withstand up to 100% condensing humidity. -
What is the maximum cable length allowed for this transducer?
+You can use a maximum cable length of 305 meters (1,000 feet) without any signal degradation, provided you use the recommended cabling (e.g., part number 02173006).
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