BSWA CA111 Sound Calibrator: Precision Calibration for Acoustic Measurement

BSWA CA111 Class 1 sound calibrator delivers 94dB & 114dB @1kHz with ±0.3dB accuracy, compatible with 1/2" & 1/4" microphones, IEC 60942 compliant, lightweight 180g for lab calibration, environmental noise monitoring and on-site acoustic testing.

Overview

The BSWA CA111 Sound Calibrator is a compact, high‑precision acoustic calibrator built for field and laboratory use. It delivers 94 dB and 114 dB at 1 kHz with accuracy ±0.3 dB, supports 1/2‑inch and 1/4‑inch microphones, complies with IEC 60942 Class 1, ANSI S1.40, and GB/T 15173 Class 1, and runs 40 hours on 2×AA batteries. Weighing only 180 g, it is the industry standard for calibrating microphones, sound level meters, and acoustic analyzers in environmental monitoring, industrial testing, laboratory research, and field inspection.

Key Advantages

Ultra‑High Calibration Accuracy: ±0.3 dB @ 94 dB / 114 dB

CA111 provides two reference levels: 94 dB ±0.3 dB and 114 dB ±0.3 dB at 1 kHz ±0.5%, ensuring traceable, laboratory‑grade calibration.

Full Microphone Compatibility: 1/2″ Direct & 1/4″ With Adapter

It supports 1/2‑inch microphones natively and 1/4‑inch microphones with included adapter, fully compliant with IEC 61094 for universal use ^[1].

Ultra‑Long Battery Life: 40 Hours of Continuous Use

Powered by 2×AA batteries, the device supports up to 40 hours of operation with auto‑off to save power.

Ultra‑Portable Design: 180 g (With Battery)

Weighing only 180 g and sized 48×70×70 mm, CA111 fits in a pocket or tool kit for on‑the‑go calibration.

Wide Environmental Stability: −10°C to 50°C, 65–108 kPa

Stable output across −10°C to 50°C, 10–90% RH, and 65–108 kPa pressure, ensuring reliability indoors and outdoors.

Comparison Table: CA111 vs. General Class 2 Calibrators

Core Application Scenarios

1. Laboratory Metrology & Standards Calibration
Ideal for calibration centers, research labs, and academic institutions to calibrate sound level meters, measurement microphones, and acoustic analyzers with traceable Class 1 accuracy.

2. Industrial Noise & NVH Testing
Used in automotive, machinery, and home appliance manufacturing to calibrate devices for production line noise testing, NVH measurement, and quality control.

3. Environmental Noise Monitoring
Perfect for on‑site calibration in urban environmental noise, highway noise, construction noise, and community noise monitoring for stable field performance.

4. On‑Site Engineering & Field Inspection
Lightweight and battery‑powered for on‑location acoustic testing, building acoustics, sound insulation measurement, and field acceptance.

5. Education & Training
Used in universities and vocational training for acoustic experiment teaching, instrument operation, and metrology practice.

User Scenario Benefits

• Lab‑Grade Precision Anywhere: Class 1 accuracy supports official metrology and inspection.
• All‑In‑One Compatibility: Works with 1/2" and 1/4" microphones for full device coverage.
• Field‑Ready Portable: Pocket size and long battery life for daily outdoor use.
• Globally Recognized: Complies with international and national standards.
• Easy to Use: Simple 2‑button operation for beginners and experts.

FAQ

What standards does CA111 meet? It complies with IEC 60942 Class 1, ANSI S1.40-1984, and GB/T 15173 Class 1 for authoritative calibration ^[1][2].

What sound levels does CA111 provide? 94 dB ±0.3 dB and 114 dB ±0.3 dB at 1 kHz ±0.5%.

Does it support 1/4‑inch microphones? Yes. It supports 1/2‑inch directly and 1/4‑inch with the included adapter.

How long does the battery last? Up to 40 hours on 2×AA batteries with auto power off.

Is it suitable for outdoor field use? Yes. It operates reliably in −10°C to 50°C and 65–108 kPa pressure.

What is the weight of CA111? Only 180 g (including batteries), extremely portable.