Quest SoundPro Sound Level Meters SE-DL Series

Key Features:

Features and benefits

• ANSI and IEC standards compliant
• Available in Class/Type 1 Precisions or Class/Type 2 General Purpose models
• Two “virtual” sound level meters running simultaneously
• Concurrent A-weighted and C-weighted measurements
• Programmable and level-triggered start and stop
• A, C and Z (flat) frequency weighting
• Fast, slow, and IEC impulse time response
• Selectable thresholds 10 dB – 140 dB
• 3, 4, 5, 6 dB exchange rates
• Luminescent keypad and backlit display
• SD memory card slot
• USB communications port and serial RS-232 output
• Display adjustable among multiple languages
• Time history data logging with 1 second to 60 minute intervals*
• Back erase function
• Noise dose calculation/dosimetry function

Optional Features and Expanded Capabilities

• Full (1/1) octave band real-time analysis
• Third (1/3) octave band real-time analysis
• SoundPro Outdoor Measuring System
• Option-1: Speech Intelligibility (STI-PA) and Acoustic Spectral Curves
• Option-2: Speech Intelligibility (STI-PA) with accessories and Acoustic Spectral Curves
• Reverberation: Reverberation measurement and RT60 analysis (Part Number: 053-768)
• Audiometric calibration kit configurations
• GPS data incorporation (using compatible GPS receiver)
• Optional microphones in 1/4”, 1/2”, and 1” sizes

Key Technical Specifications:

Acoustic Measurement Performance

• Measurement Range: 10 dB to 140 dB
• Dynamic Measurement Range: 120 dB+ across multiple ranges
• Measurement Parameters: SPL, LMax, LMin, LPeak, LEQ/LAVG, SEL, LN (L1–L99), TWA, Dose, Exposure, CNEL, LDN, LC-A
• Exchange Rates: 3 dB, 4 dB, 5 dB, 6 dB selectable
• Frequency Weighting: A, C, Z (flat)
• Time Response: Fast, Slow, and Impulse response modes

Acoustic Analysis Capabilities

• Simultaneous Dual Virtual Sound Level Meters
• Real-time Octave Band Analysis (1/1 octave) – optional
• Third-Octave Band Analysis (1/3 octave) – optional
• Noise Dose & Dosimetry Calculations
• Speech Intelligibility Measurement (STI-PA) – optional module
• Reverberation Time Measurement (RT60) – optional

Microphone & Sensor System

• Supported Microphones:
• • Class/Type 1 Precision – BK4936
  • Class/Type 2 General Purpose – QE7052
• Microphone Sizes: ¼″, ½″, and 1″ condenser microphones supported
• Polarization: Selectable 0 V or 200 V (Type 1 models)
• Removable Preamplifier: Accepts ½″ (13.2 mm) microphone directly
• Remote Cable Capability: Up to 15 m with negligible signal loss

Data Logging & Storage

• Logging Capability: Time-history data logging (DL models)
• Logging Interval: 1 second to 60 minutes
• Storage Medium: Removable SD memory card
• Software Compatibility: Detection Management Software (DMS) for advanced reporting and analysis

Display & User Interface

• Display Type: 128 × 64 transflective dot-matrix LCD with backlight
• Keypad: 10 push buttons with 4 soft keys
• User Interface: Menu-driven system with quick keypad calibration
• Languages Supported: English, French, Spanish, German, Italian, Portuguese

Connectivity & Interfaces

• USB Interface: USB 2.0 mini-USB port
• RS-232 Communication: Via 10-pin auxiliary connector
• AC/DC Output: 3.5 mm stereo output (AC, DC, Ground)
• External Power Input: 9–16 VDC adapter compatible

Power Supply

• Battery Type: 4 × AA alkaline batteries
• Optional Battery: Nickel-Metal Hydride (NiMH) rechargeable cells
• Battery Life: Typically more than 10 hours continuous operation
• External Power: 100–240 VAC adapter to 9 VDC