Plastic smoke density tester

　　Product Introduction

　　The main principle of smoke density measurement is that in a specific space, cables or materials generate smoke under specific combustion or radiation conditions, and the beam of light will attenuate after passing through the smoke. The transmittance of the beam of light is measured and the specific optical density and smoke density are calculated.

　　This instrument is designed and developed according to the relevant standards of ISO5659. When used in conjunction with a conical radiation furnace, the heat flux inside the box can reach up to 50 kW/m2, and the sample can be horizontally positioned to test the quality loss rate of the sample. This also complies with the latest IMO testing terms. Measure the smoke density generated by a sample exposed vertically to a radioactive heat source of 25 kW/m2 in a closed space with/without forward flames.

　　Using the standard ISO 5659 cone-shaped radiation heating furnace, users can adjust the heating conditions from 10/ Can the square meter be adjusted to 50 at will/ ㎡ or 70kW/㎡.

　　Product standards

　　GB/T8323.2-2008

　　ISO 5659-1: Plastics - Smoke generation - Part 1: Principles of optical density testing

　　ISO 5659-2: Smoke generation of plastics - Part 2: Optical density of materials obtained through monomer box testing

　　Box Structure

　　The test box consists of a box, a sample box, a radiation cone, an igniter, a transmission and measurement device, and other related control devices

　　Structural design and control design of ergonomics; The box adopts a fully open door design method; The door lock design facilitates the one-time closure of the box door; Optimize operational processes

　　The test box door can be fully opened, making it convenient for loading and unloading samples and cleaning the box;

　　Front door hinge installation, equipped with a window and a movable opaque sunshade that can block the window, to prevent light from entering the sealed box

　　The controller is located on the side of the box for easy operation. When the box door is closed, it does not affect the viewing of the controller

　　Safe flameout plate, easy to replace, safer to operate

　　Can provide gas measurement ports for testing gas toxicity

　　The coating of the test box is easy to clean and resistant to chemical corrosion

　　Combustion device

　　Heating cone: Power 2600W, input temperature range from 0 to 1000 ℃, stable within ± 2 ℃ within 50 minutes, can provide 10KW/m- 50KW/m? Radiation irradiance.

　　The use of mass flow controllers and pressure differential sensors can improve the accuracy of pressure gauges and achieve automatic leak testing.

　　The igniter is equipped with an automatic ignition device; Flame length 30mm ± 5mm; According to the standard, the blue flame has a yellow tip.

　　Smoke density measurement system

　　Smoke density and temperature are displayed digitally for easier viewing and more accurate numerical values

　　The photoelectric detection component consists of a photomultiplier tube, amplification filter, shutter, filter, neutral filter, lens, optical window, etc

　　The light source is a 6.5V incandescent lamp light source

　　An optical cassette is installed on the top of the box, and the light source is a side window type photomultiplier. The transmittance accuracy can reach 0.001%

　　Achromatic lens

　　Silicon photovoltaic cells

　　High gain and low noise amplifier control circuit

　　control system

　　Automatically complete testing; Automatic collection of various signals

　　Brand computers

　　The printer is optional

　　Voltage: 220V Power 4KW

　　Propane gas to be provided by customers themselves