Product Overview
The Bently Nevada 190501-07-00-04 is a Velomitor CT Velocity Transducer engineered for precise vibration measurement in rotating machinery. This industrial automation module delivers reliable velocity data for predictive maintenance and protection systems, helping you avoid unplanned downtime and extend equipment life.
Featuring a rugged 316L stainless steel case, the 190501-07-00-04 is built to withstand harsh industrial environments, including high shock and humidity. With a sensitivity of 3.94 mV/mm/s (±5%), it provides accurate readings across a broad frequency range, making it suitable for a wide variety of rotating assets.
Technical Specifications
The table below lists the key electrical, environmental, and mechanical parameters of the Bently Nevada 190501-07-00-04:
| Parameter |
Value |
| Sensitivity |
3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Response |
3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB; 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB |
| Output Bias Voltage |
10.1 Vdc ± 1.0 Vdc (Pin A referenced to Pin B) |
| Dynamic Output Impedance |
<400 Ω typical |
| Broadband Noise |
0.229 mm/s (0.009 in/s) pk |
| Base Strain Sensitivity |
0.43 mm/s/μstrain (0.017 in/s/μstrain) |
| Operating Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Storage Temperature |
-40°C to +100°C (-40°F to +212°F) |
| Shock Limit |
5000 g pk, maximum |
| Humidity Limit |
100% condensing, non-submerged |
| Case Material |
316L stainless steel |
| Connector |
2-pin 316L stainless steel MIL-C5015, top |
| Mounting Torque |
4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) |
| Weight |
<297 g (10.5 oz.) typical |
The transducer also features a mounted resonant frequency of 9 kHz minimum (stud mounted) and a magnetic field susceptibility of <0.0068 mm/s/gauss @ 50 gauss, 50-60 Hz.
Key Features & Benefits
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High Accuracy: Sensitivity of 3.94 mV/mm/s (±5%) ensures precise velocity measurement.
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Wide Frequency Range: From 1.5 Hz to 1.0 kHz, covers typical machine vibration frequencies.
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Intrinsically Safe: Approved for hazardous areas with Ex ia IIC T4 and Ex nL IIC T4 ratings (Class I, Division 1 and 2).
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Rugged Construction: 316L stainless steel case and connector resist corrosion and harsh environments.
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Long Cable Capability: Supports up to 305 meters (1000 ft) of cable without signal degradation.
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Flexible Mounting: Any orientation; plate stud option for 3/8-24 threads.
Industry Applications
The Bently Nevada 190501-07-00-04 is ideal for vibration monitoring in critical rotating equipment such as turbines, compressors, pumps, and electric motors. In a refinery, for example, this transducer can be installed on a gas compressor to continuously monitor bearing velocity, alerting operators to early signs of imbalance or misalignment. In a power plant, it can be used on steam turbines to ensure smooth operation and prevent costly outages.
Its intrinsically safe certification makes it suitable for use in hazardous areas where flammable gases or dust may be present, such as chemical processing facilities and oil & gas platforms.
Installation & Setup Guidance
Proper installation is crucial for accurate vibration measurement. Follow these guidelines for the 190501-07-00-04:
- Mount the transducer securely to a flat, clean surface using the provided stud (3/8-24 thread). Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).
- Ensure the mounting surface has a 33 mm diameter flat area for proper seating.
- Connect the 2-pin MIL-C5015 connector. Observe polarity: Pin A goes positive with respect to Pin B when velocity is from base to top.
- Use the specified cable (part number 02173006) for lengths up to 305 meters without signal degradation.
- For hazardous area installations, follow the wiring instructions in drawing 167536.
Maintenance & Reliability
The 190501-07-00-04 is designed for long-term reliability with minimal maintenance. Its internal electronics are isolated from the case, reducing ground loop issues. The 316L stainless steel construction resists corrosion, and the transducer can operate in 100% condensing humidity. To ensure consistent performance, periodically inspect the mounting stud for tightness and check the cable for damage. While the transducer has no moving parts, environmental factors such as extreme temperatures (-40°C to +85°C) and shock up to 5000 g are within its limits, but regular visual inspection is recommended.
Selection Guide & Purchasing Advice
When purchasing the Bently Nevada 190501-07-00-04, verify the following:
- Confirm the part number exactly: 190501-07-00-04, which includes the plate stud mounting option (07) and MIL-C-5015 connection (00).
- Check agency approval option 04: CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1).
- Ensure the transducer's frequency range and sensitivity match your monitoring requirements.
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