The Bruel & Kjaer SA 0013 2A / 2B Attenuator Scale is a precision accessory for signal attenuation control in audio and electronic measurement systems. It provides selectable attenuation ranges to enable accurate adjustment of signal amplitude during calibration and measurement tasks. The scale facilitates direct reading of vibration, sound, or voltage levels when integrated with compatible Bruel & Kjaer instruments, making it essential for laboratory and field-based testing applications requiring precise signal level management.
## Technical Specifications
• **Attenuation Ranges:** Selectable for precise signal level control
• **Signal Level Adjustment:** Designed for accurate amplitude modification in audio and electronic testing
• **Compatibility:** Integrates with instruments such as the Bruel & Kjaer 2209 Impulse Precision Sound Level Meter and associated measurement devices
## Key Features
• Precision attenuation capability for demanding measurement environments
• Direct-reading interface for vibration, sound, and voltage level assessment
• Selective range operation enabling flexible signal control across multiple measurement tasks
• Compatible with RMS detection systems featuring crest-factor capability up to 40
• Supports peak detection with 20 µs rise time and hold facility on associated instruments
## Typical Applications
• Audio and electronic test signal calibration
• Vibration measurement and analysis
• Sound pressure level assessment
• Impulse response testing with response specifications of +3 dB for 0.1 to 5 ms impulse durations and +1 dB for 0.5 to 2 ms impulse durations
• Laboratory and industrial measurement tasks requiring signal amplitude control
## Compatibility & Integration
The SA 0013 2A / 2B Attenuator Scale integrates with Bruel & Kjaer precision instruments equipped with AC and DC outputs for connection to recorders and data acquisition systems. Associated devices operate on 3 × 1.5V cells (IEC LR6, AA size), such as alkaline cells QB 0013, supporting portable field deployment.
