Bruel & Kjaer 1621 Tunable Band Pass Filter
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Bruel & Kjaer Type 1621 tunable band pass filter for narrow-band frequency analysis with switchable bandwidth (3% or 23%), designed for use with the B&K 2511 Vibration Meter.
Product details
| Model | 1621 |
| Manufacturer | Bruel & Kjaer |
| Category | Sound Level Meters |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer Type 1621 is a tunable band pass filter designed for narrow-band frequency analysis of vibration levels in conjunction with the B&K 2511 Vibration Meter. It provides variable frequency selection with switchable filter bandwidth and attenuation characteristics to support detailed vibration analysis across multiple frequency bands.
Key Features
- Variable tunable filter with 5 sub-ranges for flexible frequency selection
- Switchable pass bandwidth: 3% or 23% (equivalent to 1/3 octave)
- Switchable attenuation: 34 dB or 16 dB at 1/2 and 2 times the selected frequency
- Internal power supply with 6 D batteries
- Designed for use with B&K 2511 Vibration Meter
Applications
- Narrow-band vibration frequency analysis
- Vibration level measurement at specific frequencies
- Condition-based monitoring of mechanical equipment
- Vibration troubleshooting and diagnostics
Specifications
| Type | Tunable Band Pass Filter |
| Model | 1621 |
| Frequency Sub-ranges | 5 |
| Pass Bandwidth | Switchable: 3% or 23% (1/3 octave) |
| Attenuation Options | Switchable: 34 dB or 16 dB at 1/2 and 2x selected frequency |
| Power Supply | Internal: 6 D batteries |
| Intended Use | For use with B&K 2511 Vibration Meter |
| Analysis Type | Narrow-band frequency analysis |
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Bruel & Kjaer 1621 Tunable Band Pass Filter
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