The Bently Nevada 190501-19-00-04 is a rugged velocity transducer designed for continuous vibration monitoring. It measures absolute casing velocity on rotating machinery. This specific model includes a MIL-C-5015 connection interface instead of an integral cable. Additionally, it comes with a mounting adapter from 3/8-24 to 1/4-18 NPT. Users rely on this sensor for steam turbines, gas compressors, and large fans. Its 316L stainless steel housing resists corrosion in harsh industrial environments. Furthermore, the 190501-19-00-04 carries intrinsic safety approvals for Class I, Division 1 and Zone 0/1 areas.
Sensitivity and Frequency Response
The 190501-19-00-04 delivers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%. Frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) at ±1.0 dB. For wider band applications, it covers 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) at ±3.0 dB.
Electrical Characteristics
Output bias voltage measures 10.1 Vdc ±1.0 Vdc between Pin A and Pin B. Dynamic output impedance stays below 400 Ω typical. Broadband noise floor is only 0.229 mm/s (0.009 in/s) pk. Internal electronics are isolated from the case, which simplifies grounding in the field.
Linearity and Transverse Response
Amplitude linearity reaches ±2% up to 63.5 mm/s pk (2.5 in/s pk). Transverse response is less than 5% of axial sensitivity. Therefore, you obtain accurate readings even with off-axis vibration inputs.
Temperature and Humidity Range
Operating temperature extends from -40°C to +85°C (-40°F to +185°F). Storage temperature ranges from -40°C to +100°C (-40°F to +212°F). Moreover, the sensor withstands 100% condensing humidity as long as it remains non-submerged.
Shock and Magnetic Field Immunity
Shock limit is 5000 g pk maximum. Magnetic field susceptibility stays below 0.0068 mm/s/gauss at 50 gauss, 50-60Hz. This ensures stable performance near large motors or generators.
Case Material and Mounting Dimensions
Case material is 316L stainless steel for excellent corrosion resistance. Height measures 82 mm (3.2 in). Mounting surface diameter is 33 mm (1.3 in). Recommended mounting torque is 4.5 N-m ±0.6 N-m (40 in-lbf ±5 in-lbf). The Bently Nevada 190501 works correctly in any orientation.
Hazardous Area Classifications
The 190501-19-00-04 carries CSA/NRTL/C Class I, Division 1 approval for Groups A, B, C, D. It also meets ATEX/IECEx/CSA requirements for Class I, Zone 0/1. For intrinsic safety, it is rated Ex ia IIC T4. Additionally, it supports nonincendive applications as Ex nL IIC T4 for Class I, Division 2.
Installation Requirements
Install this velocity transducer per drawing 167536. The T4 temperature rating applies from -40°C to +100°C (-40°F to +212°F). Always follow local electrical codes when installing the Bently Nevada 190501-19-00-04 in hazardous locations.
Mounting Hardware Option (19)
Option code 19 provides an adapter. It converts 3/8-24 thread to 1/4-18 NPT. This allows easy installation on machines with NPT ports. Use thread sealant for leak-proof mounting.
Connection Option (00)
Option code 00 means a MIL-C-5015 connection interface instead of an integral cable. This 2-pin stainless steel connector sits on top of the transducer. Users can attach their own field wiring or extension cables. Maximum cable length is 305 meters (1,000 ft) using part number 02173006 without signal degradation.
Step-by-Step Mounting Procedure
First, clean the mounting surface and NPT port thoroughly. Next, apply thread sealant to the 1/4-18 NPT adapter. Then, hand-tighten the adapter into the machine port. After that, attach the 190501-19-00-04 to the adapter. Finally, torque the transducer body to 4.5 N-m ±0.6 N-m. Do not exceed this value to avoid damage.
Wiring Instructions
Connect your field cable to the MIL-C-5015 connector. Pin A goes positive with respect to Pin B when velocity direction is from base to top. Use shielded twisted-pair cable for best noise immunity. Verify polarity before powering up your monitoring system.
Cable Length Considerations
You can extend cable length up to 305 meters (1,000 ft) using Bently Nevada part number 02173006. Longer runs may introduce signal noise. Keep cables away from high-voltage lines and variable frequency drives.
Bently Nevada 190501-19-00-04 Velomitor CT velocity transducer (1 unit)
MIL-C-5015 2-pin connector (top entry, 316L stainless steel)
Mounting adapter (3/8-24 to 1/4-18 NPT)
Installation reference drawing (167536)
Desiccant bag for moisture control
Note: Certificates and warranty documents are not included in this list.
1. What is the difference between 190501-19-00-04 and 190501-08-99-04?
The 190501-19-00-04 has a MIL-C-5015 connector (option 00) and an NPT adapter (option 19). The other model has a 32-foot integral cable (option 99) and a plate stud (option 08).
2. Can I use this sensor without the NPT adapter?
No, the adapter is required for proper mounting. Option 19 supplies the 3/8-24 to 1/4-18 NPT adapter. Removing it may cause loose mounting or incorrect readings.
3. What cable should I use with the MIL-C-5015 connector?
Use Bently Nevada cable part number 02173006 or a shielded twisted-pair cable rated for -40°C to +85°C. Match the connector pins carefully.
4. Is the 190501-19-00-04 approved for Zone 0 areas?
Yes, it carries Ex ia IIC T4 intrinsic safety approval for Class I, Zone 0 and Zone 1. Always install per drawing 167536.
5. What shipping methods do you offer?
We ship worldwide via FedEx, UPS, or DHL. Each order includes industrial-grade packaging and tracking information.
| Brand Name | Bently Nevada |
| Model No. | 190501-19-00-04 |
| Product Type | Velomitor CT Velocity Transducer |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
