Project Description

Equipment Function：

The smoke heat detector test tunnel was designed for sensitivity test of Smoke or Heat alarms/detectors according to GB 20517、GB4715、EN 14604、EN 54-7 、EN54-5、BS 5446-2 and ISO standards. It consist of insulated test tunnel，aerosol generator, obscuration sensor, heat element, cooler, controller and computer. The obscuration meter was made of high quality imported part to ensure precision and stable reading. The Zontest Smoke Test Tunnel Software in English was designed by our software expert specifically to meet the standards test requirements.

Specification ：

  • Model：ZNEN54-75HC
  • Power supply：380V AC 20 kW， 5m power cord provided
  • Tunnel size: 3.1m x 0.7mx 2.1m.
  • The tunnel section size is 450mm x 400mm
  • Aerosol generator：
    Built in Thomas brushless pump imported from Germany,
    Agent：Liquid paraffin, 500ml provided
    Particle size distribution between 0.5µm~1.0µm,
    Smoke rising rate: 0.015 dB/m/min≤⊿m /⊿t ≤1dB/m/min, preset to 0.05dB/m, which can be set in the software
  • Optical smoke densitometer:
    ADI circuit and advanced optical design
    transmitted light, wavelength 880nm~950nm, range: 0~2 dB/m,
    measuring range: 0 ~ 2 dB / m, measuring error shall not be greater than m×5%+0.02dB/m
  • Wind speed: 0 to 1.5 m/s continuously adjustable via software setting
    when the wind speed is set at 0.2m/s, the fluctuation range is less than ± 0.02m/s; when the wind speed is set at 1m / s, the fluctuation range is less than ± 0.1m/s
  • High temperature test function of smoke fire alarm: room temperature ~ 55 ° C, temperature control accuracy + / – 1 ° C, dry heat sensitivity test can be carried out in the smoke tunnel, standard number can be selected by software, and the program can automatically control to the corresponding temperature, which can meet the different requirements of European and China standards
  • Low temperature test function of smoke fire alarm: 0 ° C ~ room temperature, temperature control accuracy + / – 2 ° C, and 0 ° C before sensitivity test can be conditioned in the smoke tunnel
  • Dazzling test device: removable dazzling test device, software on/off automatic control.
  • Constant smoke control function: the smoke tunnel is equipped with constant smoke control function, which can set the constant smoke concentration and automatically control the smoke to be kept within the range of + / – 0.003dB/m
  • The temperature rise rate of smoke fire alarm test: 0.2 K /min, 1 K /min, 3 K /min, 5 K /min, 10 K /min, 20 K /min, 30 K /min and the error meets the standard requirements
  • Maximum temperature: 160 ° C (applicable to detector categories A1, A2, B, C, D, E, F, G, S, R)
  • Computer: including industrial control computer and display, industrial control computer processor performance i5-9400, memory 8g, hard disk 256G SSD or above, display 23.8 inches.
  • Test software: Chinese and English
  • Software function: the equipment has the function of automatic operation detection. Start with one key, and the test process is automatically completed by the program. The process includes automatic wind speed switching, smoke rising control, temperature control, smoke sensing azimuth angle conversion, smoke exhaust, light interference process, test data display, test result storage, etc
  • Data storage and output: it can automatically display the sensitivity value when recording alarm. Each test record includes threshold value, smoke rising rate, temperature, test directions, serial number and time. The record table can be exported to csv format. The concentration or temperature curve data can be stored, and the concentration or temperature value of each point can be stored according and exported to csv format.

19) The smoke tunnel equipped with smoke exhaust fan (including 2m smoke exhaust hose)

20) Excluding MIC

Standards:

  • GB20517-2006, GB4715-20005,GB4716-2005
  • EN 14604:2005+AC:2008Smoke alarm devices
  • EN 54-7:2018 Fire detection and fire alarm systems- part 7: Smoke detectors – Point smoke detectors that operate using scattered light, transmitted light or ionization
  • EN54-5:2017+ A1: 2018 Fire detection and fire alarm systems – Part 5: Heat detectors – Point heat detectors
  • EN54-29:2015 Fire detection and fire alarm systems – Part 29: multi-sensor fire detectors – point detectors using a combination of smoke and heat sensors
  • ISO 7240-5 and 7240-7

Test Items：

Smoke alarm and smoke detector

  • Initial sensitivity
  • Directional dependence
  • Air movement
  • Repeatability
  • Dry heat
  • Cold(operational)
  • Dazzling
  • Other sensitivity test

Heat detector

  • Directional dependence
  • Static response temperature
  • Response times from typical application temperature
  • Response times from 25℃
  • Response times form high ambient temperature
  • Variation in supply parameters
  • Reproducibility (response times before environmental tests)
  • Other sensitivity test