Product Introduction
The Velomitor CT Velocity Transducer is a low-frequency version of our standard Velomitor Piezo-velocity Sensor. Its design specifically measures casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (100 to 300 rpm typical).

Technical Specifications
|
Manufacture |
BENTLY NEVADA |
|
Model |
190501 |
| Part Number | 190501 |
|
Description |
Velomitor CT Transducer |
|
Origin |
USA |
|
Dimension |
10*5*8cm |
|
Weight |
0.3kg |
Product Details
The Velomitor CT Transducer 190501 can measure vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer.
In addition, be careful to install the accelerometer transducer on the bearing housing or machine casing. Improper installation may decrease the transducer amplitude and frequency response and/or generate false signals that do not represent actual vibration. Refer to the appropriate instruction manuals and Application Notes. Upon request, Bently Nevada provides engineering services that can identify the appropriate machine housing measurements and installation assistance if needed.
190501 Ordering Information
Velomitor CT Velocity Transducer
190501 - AA - BB - CC
| A: Mounting Hardware Option | |
| 0 0 | No stud |
| 0 1 | Stud 3/8-in 24 to 3/8-in 24 |
| 0 2 | Stud 3/8-in 24 to 1/2-in 20 |
| 0 3 | Adhesive Stud 3/8-in 24 |
| 0 4 | Stud M6x1 with 3/8-in 24 adapter |
| 0 5 | Adhesive Stud M6x1 with 3/8-24 adapter |
| 0 6 | Stud 3/8-in 24 to 1/4-in 28 |
| 0 7 | Plate Stud 3/8-in 24 to 3/8-in 24 |
|
0 8 |
Plate Stud 3/8-in 24 to 1/2-in 20 |
| 0 9 | Plate Stud 3/8-in 24 to 1/4-in NPT |
| 1 0 | Plate Stud M6x1 to M6x1with 3/8- in 24 adapter |
| 1 1 | Plate Stud 3/8-in 24 to 1/4-in 28 |
| 1 2 | Plate Stud 3/8-in 24 to M8x1 |
| 1 3 | Quick disconnect stud |
| 1 4 | Adapter, 3/8-in 24 to 1/4-in 20 |
| 1 5 | Adapter, 3/8-in 24 to 5/16-in 18 |
| 1 6 | Adapter, 3/8-in 24 to 3/8-in 24 |
| 1 7 | Adapter, 3/8-in 24 to 3/8-in 16 |
| 1 8 | Adapter, 3/8-in 24 to 1/2-in 13 |
| 1 9 | Adapter, 3/8-in 24 to 1/4-in 18 NPT |
| 2 0 | Adapter, 3/8-in 24 to 3/8-in 18 NPT |
| 2 1 | Adapter, 3/8-in 24 to 1/2-in 14 NPT |
| 2 2 | Adapter, 3/8-in 24 to 3/4-in 14 NPT |
| 2 3 | Adapter, 3/8-in 24 to 1.0-in 11.5 NPT |
| 2 4 | Adapter, 3/8-in 24 to 1.25-in 11.5 NPT |
| B: Connection Option | |
| 0 0 | MIL-C-5015 connection interface |
| 9 9 | Unit with included 32-foot cable |
| C: Agency Approval Option | |
| 0 0 | No Approvals |
| 0 1 through 0 4 | CSA/NRTL/C (Class I, Division 1), ATEX/IECEx/CSA (Class I, Zone 0/1) |
FAQ
Q: 190501 Sensitivity
A: 3.94mV/mm/s (100 mV/in/s) ±5%.
Q: 190501 Frequency range
A: Frequency range adjusted downward to 3.0 Hz to 900 Hz ±1.0 dB or 1.5 Hz to 1.0 kHz ±3.0 dB to enable velocity sensor to measure vibration for fans running as low as 90 rpm.
Q: Cabling
A: Up to a maximum cable length of 305 m (1,000 ft).













