VAD Fire Alarm Sound and Light Signal Effective Intensity and Light Distribution Test System
Professional Photometric Testing for Fire Alarm Sound and Light Signals
VAD Fire Alarm Sound and Light Signal Effective Intensity and Light Distribution Test System
The VAD fire alarm effective intensity and light distribution test system is designed for Voice Alarm Devices (VAD). VADs are essential components of fire alarm systems, widely used in commercial, industrial and residential buildings. The system measures C-x-y/W-x-y coverage volume, effective intensity and related parameters, compliant with GB26851, ANSI/UL1638-2023, AS-ISO-7240.23-2014, BS EN 54-23-2010. The GMS-2020A comprises GMS-2000S A-α goniophotometer, LUX-200F flash illuminance meter and related equipment for high angular resolution and fast dynamic light distribution scanning.
The GMS-2000S goniophotometer features a precision angle turntable with 300mm×300mm sample stage; the sample moves relative to the fixed detector in horizontal and vertical directions. Torsion-resistant frame and high-precision drive shafts ensure reproducibility and angle accuracy better than 0.1°. The LUX-200F flash illuminance meter is designed for flash and transient light source photometry, using 16-bit high-speed AD to capture light output and a microprocessor to analyse flash duration, flash frequency, effective intensity, instantaneous max/min intensity and average intensity.
Key Features
- Dedicated to VAD photometric performance testing; key promotional solution
- GMS-2000S A-α goniophotometer, 300mm×300mm stage, 0.1° accuracy, 0.01° resolution
- LUX-200F flash illuminance meter, 100kS/s sampling, 0.01–20,000 lx, class 1
- High angular resolution and fast dynamic light distribution scanning; C-x-y/W-x-y coverage
- Effective intensity: Blondel-Rey-Douglas, Form Factor, Allard, Modified Allard
- Software with automatic pass/fail; custom report formats available
Measurable parameters
Technical specifications
- GMS-2000S: 0.1° accuracy, 0.01° resolution; H-axis -180° to +180°, V-axis -180° to +180°; max load 8 kg
- LUX-200F: 16-bit AD; 0.01–20,000 lx; 1k–100k S/s; 100 ms–10 s; 10 μs time resolution
Meet the standard requirements
- GB26851 Fire sound and/or light alarms
- ANSI/UL1638-2023 Fire alarm and signaling system visible signal devices
- AS-ISO-7240.23-2014
- BS EN 54-23-2010 Fire detection and alarm systems
- GB/T 22907-2008 Photometry and goniophotometry of luminaires
- GB/T 39585-2020 Photoelectric measurement – goniophotometer performance and test methods
- GB/T 42064-2022 Flicker characteristics of lighting equipment
- JJF1330-2011 Transient effective intensity meter calibration
Related Products
GMS-2000S VAD Fire Alarm Goniophotometer
A-α signal luminaire goniophotometer, 300mm×300mm stage for VAD fire alarm light distribution
LUX-200F Flash Illuminance Meter
Designed for flash/transient sources; 100kS/s; effective intensity, flash frequency; fire alarm standards
DPS-500 Precision DC Power Supply
CC/CV dual mode; stable power for VAD and standard lamps