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.: 21000-16-05-00-077-03-02
Country of origin:United States
Product Type: Proximity Probe Housing Assemblies
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1100g
Dimensions: 13.5cm x 8.2cm x 7.4cm
Shipping port: Xiamen
Warranty: 12 months
The 21000-16-05-00-077-03-02 is a specific configuration of the Bently Nevada 21000 series aluminum proximity probe housing assembly, designed for the external mounting of 3300 XL 8 mm proximity transducers. This assembly provides a robust, weather-resistant enclosure for the probe and its connector, ensuring mechanical protection in industrial environments. This unit features a 0.5 m (20 in) probe cable (Option 05), no standoff adapter (Option 00), and a 7.7 in probe penetration depth (Option 077).
Engineered to comply with the American Petroleum Institute (API) 670 Standard, this housing assembly serves as a critical component for reliable shaft vibration and position monitoring. The 16 configuration code indicates compatibility with the 3300 XL 8 mm probe series. The assembly includes a cable seal grip (Option 03) to accommodate varying cable diameters and a 1-11 1/2 NPT mounting thread (Option 02) for secure attachment to machine cases.
Used primarily in power generation, petrochemical, and oil and gas industries for the external mounting of proximity probes on rotating machinery such as turbines, compressors, pumps, and motors. It is suitable for applications where environmental protection of the probe and connector system is required to maintain measurement integrity.
| Option | Code | Description |
|---|---|---|
| Part Number | 21000-16-05-00-077-03-02 | 21000 Proximity Probe Housing Assembly |
| A - Probe Series | 16 | 3300 XL 8 mm probe |
| B - Cable Length | 05 | 0.5 m (20 in) probe cable |
| C - Standoff Adapter | 00 | No standoff adapter |
| D - Probe Penetration | 077 | 7.7 in (195.6 mm) penetration depth |
| E - Fittings | 03 | One cable seal grip |
| F - Mounting Thread | 02 | 1 - 11 1/2 NPT mounting thread |
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Part Number | 21000-16-05-00-077-03-02 |
| Housing Material | Aluminum body, 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical (without fittings) |
| Mounting Thread | 1 - 11 1/2 NPT |
| Probe Compatibility | 3300 XL 8 mm |
| Cable Entry | Cable seal grip (Option 03) |
| Temperature Range | -51 degC to +177 degC (-60 degF to +351 degF) |
Ensure the probe lead is longer than the internal sleeve to prevent cable strain. For penetration lengths (C+D) exceeding 300 mm (12 in), additional sleeve support is mandatory to mitigate resonance. Use the provided cable seal grip (Option 03) to ensure a proper seal against moisture and contaminants. Ensure the NPT mounting threads are properly sealed using thread sealant compatible with the environment.
The 21000 housing assembly is compliant with RoHS Directive 2011/65/EU. For hazardous area applications, ensure specific installation requirements are met per the system datasheet and local electrical codes. The 21000 series is compatible with CSA-rated installations when ordered with appropriate components.
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| Country of origin |
United States
|