Aluminium Paint Coated Production Test Smoke Tunnel

Equipment Function：

The smoke alarm production test tunnel was designed for batch test or calibration of sensitivity test of Smoke alarms or detectors. The basic work principle is compliance to EN 14604 and EN 54-7. It consist of test tunnel，aerosol generator, obscuration sensor, controller and computer. The obscuration meter was made of high quality electrical and optical components to ensure precision and stable reading. The two floor trays support by rodless air cylinders. They can extend and extract by press button or automatic control. The lids are fixed on tray and can close the opening in extended position and extraction position. The Zomtest Smoke Test Tunnel Software in English is able to set the air speed, aerosol buildup rate (ramp test), constant obs set value.

The aerosol concentration is controlled to set value by PID algorithm and can maintain the smoke density with +/-0.004dB/m in reading when door keep closing. After exchange of samples tray, the smoke density will drop and then resume to +/-0.005 range within half minute.

Specification ：

1．    Model：ZNEN14604-18

2．    Power：220V AC 1KW

3．    Standards：EN14604,EN54-7, GB20517, GB4715

4．    Aerosol generator：Liquid paraffin , particle size distribution between 0.5µm~1.0µm，

5．    Optical smoke densitometer: transmitted light, wavelength 880nm~950nm, range: 0~2 dB/m,

6.测试 隧道尺寸：3.1m x 0.5mx 1.1m。

7.测试 截面尺寸为 430mm x 270mm

8.风 速度：直流电机调速，软件设置速度，0 – 1.2 m/s

9.升烟率：预设0.005dB/m，可 在软件中设置。

将 遮挡（Obscuration） 值发送到 通过 Modbus RTU 的 com 端口。客户端可以通过 RS 485 读取值