Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: Bently Nevada
Product No.: 190501-11-00-00
Country of origin:United States
Product Type: Velomitor CT Velocity Transducer
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 297g
Dimensions: 1.8cm x 1.6cm x 123cm
Shipping port: Xiamen
Warranty: 12 months
The 190501-11-00-00 Velomitor CT Velocity Transducer is a low-frequency, piezo-velocity sensor engineered specifically for monitoring casing vibration on machinery operating at or above 90 rpm, such as cooling towers and air-cooled heat-exchanger fan assemblies. This configuration features Option 11 (Plate Stud 3/8-in 24 to M8x1) for flexible mounting, Option 00 (MIL-C-5015 connection interface), and Option 00 (No Approvals). The sensor effectively measures vibration amplitudes at low frequencies associated with rotor unbalance and misalignment, as well as the vibration frequencies generated by fan motors and speed reducers.
By utilizing a piezo-velocity design, this transducer provides reliable casing vibration data essential for machine protection. Proper installation on the bearing housing or machine casing is required to maintain frequency response and amplitude accuracy. This specific unit is designed for standard industrial environments where hazardous area approvals are not required.
| Option | Code on This SKU | Description |
|---|---|---|
| Orderable Part Number | 190501-11-00-00 | Velomitor CT Velocity Transducer |
| A - Mounting Hardware | 11 | Plate Stud 3/8-in 24 to M8x1 |
| B - Connection Option | 00 | MIL-C-5015 connection interface |
| C - Agency Approval | 00 | No Approvals |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model | 190501 Velomitor CT |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) +/- 5% |
| Frequency Response | 3.0 Hz to 900 Hz (+/- 1.0 dB) |
| Velocity Range | 63.5 mm/s pk (2.5 in/s pk) |
| Case Material | 316L Stainless Steel |
| Connector | 2-pin 316L Stainless Steel MIL-C-5015 |
| Operating Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Weight | < 297 g (10.5 oz) |
| Mounting Torque | 4.5 N-m +/- 0.6 N-m (40 in-lbf +/- 5 in-lbf) |
| Shock Limit | 5000 g pk |
Install the Velomitor CT transducer directly on the bearing housing or machine casing using the specified mounting stud. Ensure the mounting surface is clean and flat to guarantee optimal frequency response. When using the Plate Stud 3/8-in 24 to M8x1 (Option 11), verify the interface is tightened to the recommended 4.5 N-m torque. Route cables in shielded conduits to protect signal integrity and prevent environmental interference.
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Returns & Warranty



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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|