Bently Nevada 190501-11-00-CN Velomitor CT Velocity Transducer

Bently Nevada 190501-11-00-CN Velomitor CT Velocity Transducer

Product Introduction

The 190501-11-00-CN belongs to Bently Nevada's Velomitor CT series of velocity transducers. Engineers use this device for reliable vibration measurement on rotating machinery. It converts mechanical velocity directly into an electrical signal. Additionally, its design eliminates the need for external signal conditioning.

This specific model includes mounting hardware option 1, which is a plate stud converting 3/8-in 24 to 1/4-in 28. The connection option is 0, featuring a MIL-C-5015 interface. Moreover, the agency approval option CN means this unit meets country-specific requirements for China.

Technical Specifications

The 190501-11-00-CN transducer provides a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%. Its frequency response spans from 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB. Alternatively, within a ±3.0 dB window, the range extends from 1.5 Hz to 1.0 kHz (90 to 60,000 cpm).

Temperature sensitivity varies from -8% to +5% typical over the operating range. Transverse response remains less than 5% of the axial sensitivity. Amplitude linearity holds at ±2% up to 63.5 mm/s pk (2.5 in/s pk). The mounted resonant frequency reaches 9 kHz minimum when stud mounted.

Output bias voltage measures 10.1 Vdc ± 1.0 Vdc on Pin A referenced to Pin B. Dynamic output impedance is below 400 Ω typical. Broadband noise sits at 0.229 mm/s (0.009 in/s) pk. Base strain sensitivity equals 0.43 mm/s/μstrain (0.017 in/s/μstrain).

The internal electronics are isolated from the case. Maximum cable length reaches 305 meters (1,000 feet) using part number 02173006 without signal degradation.

Environmental Limits

Operating temperature ranges from -40°C to +85°C (-40°F to +185°F). Storage temperature extends from -40°C to +100°C (-40°F to +212°F). The shock limit is 5000 g pk maximum. Humidity can reach 100% condensing, but the device cannot be submerged.

Magnetic field susceptibility is less than 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz.

Mechanical Parameters

Weight is below 297 g (10.5 oz) typical. The mounting surface requires a 33 mm diameter (1.3 in diameter). Total height measures 82 mm (3.2 in). Case material is 316L stainless steel. The connector is a 2-pin 316L stainless steel MIL-C-5015 located on top.

Mounting torque should be 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). Polarity is defined as Pin A going positive with respect to Pin B when velocity moves from base to top of the transducer. Any mounting orientation is acceptable.

Installation Guidelines

First, prepare a clean mounting surface of at least 33 mm diameter. Next, apply the recommended torque of 4.5 N-m ± 0.6 N-m when securing the transducer. Do not exceed this range to avoid damaging the case or the mounting stud.

Then, connect the MIL-C-5015 interface. Ensure Pin A and Pin B align correctly with your monitoring system. For field wiring, keep the total cable length under 305 meters using Bently Nevada cable part number 02173006.

Finally, verify the output bias voltage. It should read 10.1 Vdc ± 1.0 Vdc between Pin A and Pin B. Additionally, check that the internal electronics remain isolated from the case ground.

Packaging List

• One 190501-11-00-CN Velomitor CT velocity transducer

• One plate stud mounting adapter (3/8-in 24 to 1/4-in 28)

• Installation instruction sheet

Frequently Asked Questions (FAQ)

1. What machinery is the 190501-11-00-CN suitable for?
This transducer works well on fans, pumps, compressors, and turbines. It measures absolute case vibration velocity directly without external signal conditioners.

2. Is the 190501-11-00-CN approved for hazardous areas?
Yes. The 190501 series with agency approval options 01 through 04 includes intrinsic safety ratings. However, option CN is country-specific for China. Please verify your local requirements before installation.

3. Can I mount this transducer in any orientation?
Absolutely. Any mounting angle is acceptable. Just ensure the mounting surface is flat and clean for proper signal accuracy.

4. What happens if I exceed the maximum cable length?
Exceeding 305 meters (1,000 feet) may cause signal degradation. Therefore, always stay within this limit or use signal conditioners as recommended by Bently Nevada.

5. How do you ship the Bently Nevada 190501-11-00-CN?
We ship using FedEx, UPS, or DHL. Delivery times vary by destination. Each unit is packed securely to prevent damage during transit.