Products and Services » Test & Measurement » EN54-23 Visual Alarm Device Tester
EN54-23 Visual Alarm Device Tester
Capability
- Visual alarm device testing to EN 54-23
- Emergency lighting testing to EN 13032-3 (in development)
- Custom software can be developed for specialised test applications
High speed automated test sequences enable testing of devices during development, with high accuracy measurement for reliable compliance testing.
System arrangement
- Device turntable assembly
- Light sensor
- High-speed data acquisition and sensor control
- Industry-standard PC with application software
The device under test (DUT) is mounted on a turntable, with the light sensor suitably mounted positioned the requisite distance (typically 3m) from the turntable. Data from the sensor is digitised by a high-speed data acquisition unit and then passed to application software in the industry-standard PC for analysis, presentation and logging.
The normal arrangement of the equipment is in a darkroom with the light path between turntable and sensor horizontal. The equipment can also be supplied in an alternative self-contained configuration with the sensor positioned vertically above the turntable.
Turntable assembly
- Floor standing
- Approximate dimensions 800x800x1100mm
- Accepts devices up to 200mm diameter, 200mm high, 5kg weight
- Dual turntable mechanism enables device measurement over a complete hemisphere
- Precision automatic servo control of position by controlling PC via USB connection
- Universal mount accepts DUT using a device-specific mounting plate
- Calibrated manual slide enables precise alignment of DUT reference point with turntable axes
- Integral laser pointer for precise alignment with sensor
- Non-reflective black finish
- 230Vac power supply (110Vac option)
Light Sensor
- Single cable connection to data acquisition unit
- CIE human eye response filter (ISO 23539:2005)
- Four measurement ranges: 20, 200, 4000 & 110,000 lux nominal
- Computer-controlled gain selection (manual gain selection for test and calibration purposes)
- High speed response (<1µsec rise time)
- Suitable for measuring low-intensity LED lighting as well as high-intensity xenon tube flashes
- Mechanical target for laser alignment with turntable assembly – adjustable slides allow precise positioning
- Mounting plates for bench, wall or tripod mounting
- PC-controlled data acquisition unit connects to PC via USB cable
- Digitises sensor signals at up to 2MSamples/second for high speed measurements
- Provides all power supplies and range control for sensor unit
- 230Vac single phase power supply (110Vac option)
Data acquisition unit
- PC-controlled data acquisition unit connects to PC via USB cable
- Digitises sensor signals at up to 2MSamples/second for high speed measurements
- Provides all power supplies and range control for sensor unit
- 230Vac single phase power supply (110Vac option)
Software
- Fully automated testing of Visual Alarm Devices to EN 54-23.
- Fully automated testing of emergency lighting to EN 13032-3 (in development)
- All test sequences and parameters can be customised for special-purpose testing of particular devices or for testing particular features during product development
- Manual and single tests may also be carried out
- On-line monitoring of measurements and light intensity waveforms during setup and testing
- Facilities for checking calibration of light sensor and turntable assembly
- Facilities for diagnostic testing of system
Remote pendant
As an optional extra, a handheld or wall-mounted pendant can be supplied, connected to the turntable assembly be a single cable. This pendant provides remote monitoring and control capability during testing. It would typically be ordered when the equipment is to be wholly contained within a darkroom, enabling monitoring and control of a test to be carried out without disturbing the darkroom environment.