Measuring casing vibration velocity directly on rotating machinery, the Bently Nevada 330500-03-CN integrates a rugged piezoelectric accelerometer with an internal integration circuit to output a true velocity signal. This design eliminates the requirement for external signal integration at the monitoring system, providing a robust and less noise-susceptible velocity output directly from the sensor casing. The device is housed in hermetically sealed stainless steel, engineered specifically to withstand severe, high-humidity industrial environments. Standard implementation incorporates a 1/4-28 UNF mounting thread and country-specific agency certifications, ensuring compliance with local plant safety standards.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 330500-03-CN |
| Sensor Type | Piezo-velocity (Velomitor) |
| Mounting Thread Option | 1/4 - 28 UNF (Option 03) |
| Agency Approval | CN (Country-specific hazardous area certifications) |
| Connection Interface | 2-pin MIL-C-5015 receptacle |
| Casing Material | Stainless Steel |
| Operating Bias Voltage | Nominally -12 VDC (relative to common) |
| Net Weight | 0.142 kg (0.31 lbs) |
| Shipping Weight (Calculated) | 1.50 kg (3.30 lbs) |
| Country of Origin | United States (U.S.A.) |
| Connector Pin | Function / Circuit Assignment |
|---|---|
| Pin A | Signal / Power (Bias and dynamic AC velocity signal) |
| Pin B | Signal Return / Common |
| Shield / Shell | Case ground (electrically isolated from internal signal pins) |
The 330500-03-CN is drop-in backward compatible with older Bently Nevada velocity transducers requiring standard 1/4-28 UNF casing mounting. Always verify monitor channel configuration; when replacing older electro-mechanical velocity sensors (like the 9200 series) with the 330500 piezo-velocity sensor, you must switch the monitor card jumper or software settings from "Seismic" (self-generating) to "Velomitor" (powered -24 VDC constant current) to prevent a transducer OK limit fault.
Because the Velomitor utilizes an internal piezoelectric design, rapid ambient temperature variations can induce a transient thermal shock. This thermal expansion or contraction of the crystal mimics low-frequency vibration, triggering spurious "High Velocity" alarms. Avoid mounting the sensor directly opposite uninsulated steam pipe flanges, steam leaks, or cooling vents. If thermal transients are unavoidable, install a heat-insulating boot over the sensor body.
Always utilize 2-conductor shielded twisted-pair cabling (such as Bently Nevada 9571) for the signal run. To eliminate ground loops, terminate the cable shield only at the monitoring system / cabinet terminal strip. Cut the shield flush and insulate it with heat-shrink at the sensor's MIL connector end. Ensure the sensor mounting surface is machined flat to a surface finish of 0.8 micrometers (32 microinches) Ra to guarantee precise high-frequency mechanical transmission.
Prior to starting the installation, ensure the target machinery is completely shut down, isolated, and locked out/tagged out (LOTO). Do not exceed the maximum mounting torque specification of 4.5 Nm (40 in-lb). Over-torqueing can cause permanent damage to the internal piezoelectric crystal assembly or strip the 1/4-28 thread adapter.
Global Express Shipping
Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 330500-03-CN
Country of origin:United States
Product Type: Sensori di vibrazione
Payment: T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months
Measuring casing vibration velocity directly on rotating machinery, the Bently Nevada 330500-03-CN integrates a rugged piezoelectric accelerometer with an internal integration circuit to output a true velocity signal. This design eliminates the requirement for external signal integration at the monitoring system, providing a robust and less noise-susceptible velocity output directly from the sensor casing. The device is housed in hermetically sealed stainless steel, engineered specifically to withstand severe, high-humidity industrial environments. Standard implementation incorporates a 1/4-28 UNF mounting thread and country-specific agency certifications, ensuring compliance with local plant safety standards.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 330500-03-CN |
| Sensor Type | Piezo-velocity (Velomitor) |
| Mounting Thread Option | 1/4 - 28 UNF (Option 03) |
| Agency Approval | CN (Country-specific hazardous area certifications) |
| Connection Interface | 2-pin MIL-C-5015 receptacle |
| Casing Material | Stainless Steel |
| Operating Bias Voltage | Nominally -12 VDC (relative to common) |
| Net Weight | 0.142 kg (0.31 lbs) |
| Shipping Weight (Calculated) | 1.50 kg (3.30 lbs) |
| Country of Origin | United States (U.S.A.) |
| Connector Pin | Function / Circuit Assignment |
|---|---|
| Pin A | Signal / Power (Bias and dynamic AC velocity signal) |
| Pin B | Signal Return / Common |
| Shield / Shell | Case ground (electrically isolated from internal signal pins) |
The 330500-03-CN is drop-in backward compatible with older Bently Nevada velocity transducers requiring standard 1/4-28 UNF casing mounting. Always verify monitor channel configuration; when replacing older electro-mechanical velocity sensors (like the 9200 series) with the 330500 piezo-velocity sensor, you must switch the monitor card jumper or software settings from "Seismic" (self-generating) to "Velomitor" (powered -24 VDC constant current) to prevent a transducer OK limit fault.
Because the Velomitor utilizes an internal piezoelectric design, rapid ambient temperature variations can induce a transient thermal shock. This thermal expansion or contraction of the crystal mimics low-frequency vibration, triggering spurious "High Velocity" alarms. Avoid mounting the sensor directly opposite uninsulated steam pipe flanges, steam leaks, or cooling vents. If thermal transients are unavoidable, install a heat-insulating boot over the sensor body.
Always utilize 2-conductor shielded twisted-pair cabling (such as Bently Nevada 9571) for the signal run. To eliminate ground loops, terminate the cable shield only at the monitoring system / cabinet terminal strip. Cut the shield flush and insulate it with heat-shrink at the sensor's MIL connector end. Ensure the sensor mounting surface is machined flat to a surface finish of 0.8 micrometers (32 microinches) Ra to guarantee precise high-frequency mechanical transmission.
Prior to starting the installation, ensure the target machinery is completely shut down, isolated, and locked out/tagged out (LOTO). Do not exceed the maximum mounting torque specification of 4.5 Nm (40 in-lb). Over-torqueing can cause permanent damage to the internal piezoelectric crystal assembly or strip the 1/4-28 thread adapter.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
Un quadro di controllo inattivo non significa automaticamente che l’alimentatore sia guasto. Questa guida sul campo utilizza controlli dell’ingresso, a vuoto, sotto carico, dell’ondulazione, del...
Un controllo affidabile inizia prima che il PLC esegua un ciclo. Questa guida di ingegneria segue la catena del segnale dal rilevamento e dal condizionamento fino alla trasmissione, all’azione di...
Modbus è ancora ampiamente utilizzato perché il suo modello dati è semplice, non perché ogni implementazione lo sia. Questa guida spiega i frame, la mappatura dei registri, la temporizzazione, la...
Una guida pratica di ingegneria al funzionamento della CPU di un PLC, dai cicli di scansione deterministici e dalle tabelle delle immagini degli I/O fino a memoria, comunicazioni, diagnostica,...
Sostituire un 1756-L73 non significa automaticamente aggiornare il firmware. Questa guida confronta le versioni 19.013, 21.011 e 31.011, concentrandosi sulla compatibilità dei progetti, sulle...
Implementa un circuito luminoso XOR con 3 interruttori SPST in LogixPro o RSLogix 500 utilizzando un bit di relè interno. Include tabelle della verità, equazioni booleane e verifica.
