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.: 330500-07-02
Country of origin:United States
Product Type: Velomitor Piezo-velocity Sensor
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 142g
Dimensions: 63.2 mm x 25.3 mm x 25.3 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months
The 330500-07-02 is a Bently Nevada Velomitor Piezo-velocity Sensor, configured with a 3/8-16 UNC mounting thread adapter (Option 07) and ATEX hazardous area approval (Option 02). This solid-state piezoelectric accelerometer is engineered to measure absolute (relative to free space) vibration on bearing housings, casings, and structural components. Its integrated electronics design eliminates moving parts, preventing mechanical degradation and enabling versatile mounting orientations—vertical, horizontal, or angled.
By transforming rotor vibration into a velocity signal, the 330500 supports continuous monitoring of critical machinery. This specific configuration, featuring the 3/8-16 UNC mounting thread, is suited for installations where standard adapter specifications are required. The hermetically sealed 316L stainless steel case ensures reliability in harsh industrial environments, providing accurate performance across a broad frequency range.
| Option | Code on This SKU | Description |
|---|---|---|
| Orderable Part Number | 330500-07-02 | Velomitor Piezo-velocity Sensor |
| A - Mounting Thread | 07 | 3/8-16 UNC mounting adapter |
| B - Agency Approval | 02 | ATEX (European) approval |
| Manufacturer | Bently Nevada |
| Part Number | 330500-07-02 |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) +/- 5 percent |
| Frequency Response | 4.5 Hz to 5 kHz (+/- 3.0 dB); 6.0 Hz to 2.5 kHz (+/- 0.9 dB) |
| Velocity Range | 1270 mm/s (50 in/s) peak |
| Amplitude Linearity | +/- 2 percent to 152 mm/s (6 in/s) peak |
| Resonant Frequency | Greater than 12 kHz |
| Case Material | 316L stainless steel |
| Connector | 2-pin MIL-C-5015 |
| Operating Temperature | -55 degC to 121 degC (-67 degF to 250 degF) |
| Weight | 0.142 kg (5.0 oz) |
| Diameter | 25.3 mm (0.995 in) |
| Height | 63.2 mm (2.49 in) |
Install the sensor directly onto the machine casing or bearing housing. Use the provided 3/8-16 UNC adapter for secure mounting. Ensure the mounting surface is flat and clean to maintain frequency response accuracy. Maintain a mounting torque of 32-46 kg cm (24-40 in-lb). The sensor is case-isolated to reduce electrical interference. Ensure cabling is properly routed and shielded to prevent noise amplification in the monitoring circuit.
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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
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| Country of origin |
United States
|