Bently Nevada 190501-11-00-00 Velocity Transducer

Bently Nevada Velomitor CT Sensor 190501

Product Introduction

The Bently Nevada 190501-11-00-00 belongs to the trusted Velomitor CT family. This velocity transducer measures absolute casing vibration. Its robust 316L stainless steel body handles extreme temperatures from -40°C to +85°C. You get stable performance with a 10.1 Vdc bias voltage. Many plants use this model for rotating machinery protection.

Technical Specifications

Electrical Parameters

This sensor offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%. Frequency response spans 3.0 Hz to 900 Hz within ±1.0 dB. Amplitude linearity reaches ±2% up to 63.5 mm/s peak. Output bias voltage is 10.1 Vdc ± 1.0 Vdc on Pin A referenced to Pin B. Dynamic output impedance stays below 400 Ω typically.

Additionally, the broadband threshold sits at 0.229 mm/s peak. Base strain sensitivity measures 0.43 mm/s/μstrain. Internal electronics are isolated from the case. You can extend cable length up to 305 meters (part number 02173006) with no signal loss.

Environmental Limits

Operating temperature ranges from -40°C to +85°C. Storage temperature goes from -40°C to +100°C. Shock limit reaches 5000 g peak maximum. Humidity tolerance includes 100% condensing (non-submerged). Magnetic field susceptibility is less than 0.0068 mm/s/gauss at 50 gauss, 50-60 Hz.

Mechanical Data

The Bently Nevada 190501-11-00-00 weighs only 297 g. Case material is 316L stainless steel. Connector type is a 2-pin top-entry MIL-C-5015, also 316L stainless steel. Mounting surface diameter measures 33 mm. Height is 82 mm. Mounting torque should be 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Furthermore, polarity is defined: Pin A goes positive relative to Pin B when velocity moves from base to top. Any mounting angle works. Mounting hardware option includes a 1/4-in to 3/8-in plate stud.

Frequency and Performance Characteristics

Mounted resonant frequency is 9 kHz minimum (stud mounted, except quick disconnect). Transverse response stays below 5% of axial sensitivity. Temperature sensitivity variation is -8% to +5% typical over the full range. For intrinsically safe needs, agency approval options 01 through 04 cover Ex ia IIC T4 and Class I, Div 1, Groups A, B, C, D.

Meanwhile, the non-incendive rating includes Ex nL IIC T4 for Class I, Division 2. Installation must follow drawing 167536. Temperature class T4 applies from -40°C to +100°C ambient.

Installation Guidelines

First, prepare a clean mounting surface of at least 33 mm diameter. Next, apply the specified torque of 4.5 N-m ± 0.6 N-m. Do not overtighten. For stud mounting, use the supplied 3/8-in to 1/4-in adapter.

Specifically, ensure Pin A connects to your positive signal input. Pin B serves as reference. Grounding is not required because the electronics isolate from the case. However, always verify the output bias voltage before operation. For maximum cable length, use Bently Nevada cable part number 02173006.

Packaging List

• Bently Nevada 190501-11-00-00 Velomitor CT velocity transducer (1 unit)

• Mounting hardware: 1 plate stud, 3/8-in 24 to 1/4-in 28

• MIL-C-5015 2-pin connector (pre-installed)

• Installation drawing reference card (drawing 167536 for approvals)

Note: No calibration certificate or warranty document is included. Shipping is arranged via Fedex, UPS, or DHL.

Frequently Asked Questions (FAQ)

1. Can I use the Bently Nevada 190501-11-00-00 in hazardous areas?
Yes, with approval options 01-04, it is certified Ex ia IIC T4 for Class I, Division 1, Groups A, B, C, D. Always check your specific agency approval code.

2. What happens if I exceed the cable length limit?
Signal degradation may occur beyond 305 meters. For longer runs, use a signal conditioner or consult Bently Nevada application guides.

3. Is this sensor polarity sensitive during installation?
Yes. Pin A goes positive relative to Pin B when velocity directs from base to top. Incorrect polarity will invert the output signal phase.

4. How do I clean the Bently Nevada 190501-11-00-00?
Use a soft, dry cloth. Do not submerge the connector. Avoid high-pressure water jets because the unit is not sealed for submersion.

5. What is the typical lead time for shipping?
Stock items ship within 2 business days via Fedex, UPS, or DHL. Delivery usually takes 3 to 7 business days depending on your location.