Bently Nevada Machinery Condition Monitoring
Low-frequency casing-vibration measurement for cooling-tower and air-cooled heat-exchanger fan assemblies.
| Sensitivity3.94 mV/mm/s ±5% | Frequency Response1.5 Hz to 1.0 kHz ±3.0 dB | ConnectionMIL-C-5015, 2-pin | Operating Range-40°C to +85°C |
The Bently Nevada 190501-09-00-04 is a configured Velomitor CT integrating piezoelectric velocity transducer. The 190501 family is designed for casing-vibration measurement on cooling-tower and air-cooled heat-exchanger fan assemblies operating at or above 90 rpm, typically 100 to 300 rpm.
Its complete suffix specifies a 3/8-in 24 to 1/4-in NPT plate stud, the standard MIL-C-5015 connection interface, and agency approval option 04. These suffix groups must remain together when matching an installed sensor, mounting hardware, cable and hazardous-area requirement.
| Item | Verified Detail |
|---|---|
| Manufacturer | Bently Nevada, a Baker Hughes business |
| Complete part number | 190501-09-00-04 |
| Product family | 190501 Velomitor CT |
| Product type | Integrating piezoelectric velocity transducer |
| Mounting option 09 | Plate stud 3/8-in 24 to 1/4-in NPT |
| Connection option 00 | MIL-C-5015 connection interface |
| Approval option 04 | CSA/NRTL/C and ATEX/IECEx/CSA hazardous-area approval group |
| Country of origin | USA |
| Technical Item | Official Data |
|---|---|
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency response | 3.0 Hz to 900 Hz ±1.0 dB; 1.5 Hz to 1.0 kHz ±3.0 dB |
| Velocity range | 63.5 mm/s pk (2.5 in/s pk) |
| Amplitude linearity | ±2% to 63.5 mm/s pk |
| Output bias voltage | 10.1 Vdc ±1.0 Vdc |
| Dynamic output impedance | <400 Ω typical |
| Maximum cable length | 305 m (1,000 ft) without signal degradation |
| Operating temperature | -40°C to +85°C |
| Storage temperature | -40°C to +100°C |
| Humidity limit | 100% condensing, non-submerged |
| Typical weight | <297 g (10.5 oz) |
| Mounting surface | 33 mm diameter |
| Height | 82 mm |
| Case material | 316L stainless steel |
| Connector | 2-pin 316L stainless steel MIL-C-5015, top |
| Mounting torque | 4.5 N·m ±0.6 N·m |
| Mounting angle | Any orientation |
| Application | Engineering Relevance |
|---|---|
| Cooling-tower fan assemblies | Measures low-frequency casing vibration from fans operating from 90 rpm upward. |
| Air-cooled heat-exchanger fans | Captures casing vibration as well as frequencies generated by the motor and speed reducer. |
| Low-speed fan gearboxes | Supports velocity-based monitoring where low-frequency response is important. |
| Hazardous-area installations | Option 04 belongs to the documented hazardous-area approval group; installation must follow the applicable control drawing. |
Verify all four suffix groups; a different mounting, connection or approval option changes the supplied configuration.
Check the monitoring channel for the 100 mV/in/s velocity-sensor sensitivity and required bias-current interface.
Confirm thread, plate-stud clearance, mounting surface and specified installation torque.
Compare the nameplate approval markings, installation drawing, cable type, connector sealing and total cable length.
It is a Bently Nevada Velomitor CT low-frequency integrating piezoelectric velocity transducer with a specific plate stud, connector and approval configuration.
Option 09 specifies a 3/8-in 24 to 1/4-in NPT plate stud.
It is designed for casing-vibration measurement on cooling-tower and air-cooled heat-exchanger fan assemblies operating from 90 rpm upward.
Confirm the complete suffix, sensitivity, connector, plate-stud thread, certification marks, monitoring-channel requirements and cable installation.
Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
Stockoems supports evidence-led sourcing for Bently Nevada 190501-09-00-04, with attention to the plate stud, connector, approval markings and installed monitoring channel.
Identity ReviewCheck the full 190501-09-00-04 marking, serial details and approval labels. |
Interface InspectionReview the MIL-C-5015 connector, option 09 plate stud, threads and sealing surfaces. |
Dispatch ControlDocument condition, protect the sensor and mounting hardware, then coordinate trackable global shipment. |
| Stage | What We Check | Buyer Benefit |
|---|---|---|
| Specification review | Complete suffix, sensitivity, mounting and connector details | Reduces configuration mismatch risk |
| Compatibility review | Monitor input, cable route, installation drawing and area approval | Supports engineering sign-off before order |
| Visual evidence | Nameplate, connector, plate stud and current condition photographs | Provides a traceable receiving reference |
| Logistics planning | Packing, destination, delivery method and warranty terms | Simplifies international spare-parts procurement |
Send the required quantity, delivery country, sensor nameplate, connector photograph, mounting-point photograph, installed monitor model and any hazardous-area documentation.
Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
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Send the complete part number, quantity, destination and current nameplate photographs for an exact review.
Email: sales6@apterpower.com | WhatsApp: +86 181 5988 9985
