The whole instrument consists of a closed test chamber, a photometer measurement system, a radiation cone, a combustion system, an igniter, a test box, a bracket, a temperature measuring instrument and a smoke density test software; the circuit is developed by a single-chip microcomputer, with high technical content and stable performance. This instrument is suitable for all solid materials, such as foam, rubber, textile coverings, painted surfaces, wood and other materials, and is widely used by production plants in the foam industry, solid material industries, and scientific research and testing units.

MAIN TECHNICAL INDICATORS AND WORKING CONDITIONS:

Inner Box Size	L914W610H914mm
Equipment Size	L1110W750H2040mm
Smoke Density)	0-924 Six-speed automatic shift
Measuring Range	0.0001—100%
Measurement Accuracy	±3%
Working Temperature	Room temperature—40℃
Relative Humidity	≤85%
Working Environment	When the instrument is running, it should avoid direct sunlight and no forced air flow.
Measurement Software	It operates on the WINDOWS XP interface, and the main data that can be tested include smoke optical density, specific optical density, mass optical density, mass loss, mass loss rate, average smoke density, etc. It also has operation interfaces such as calibration, editing, testing, and parameter adjustment.
Lab VIEW style.	Displays the transmittance versus time curve.
Sample Size	75×75mm

Light Source Color Temperature	2200K±100K
Speed Of Light Diameter 51mm	The computer automatically records the specific optical density according to the light change.
Filter	Amplifying filter, optical density 2.0; calibration filter, optical density 3.0; compensation filter, optical density 0.5, 3 pieces in total.
Ring Heater	There is a ring heater in the lower aperture, so that the temperature on the light window is 50 。C-55 。C, which can minimize the smoke concentration on the surface.
Heating Cone	Power 2600W Temperature control range: 0- 1000 。C, thermocouple temperature measurement, equipped with automatic cold junction compensation.
Heat Flow Radiometer	The heat flow meter signal is collected and calculated by computer, equipped with water cooling pipeline.
Auxiliary Heater	With a power of 500W, the internal temperature of the test chamber can be stabilized at 40 。C±10 。C or 55 。C±10 。C.
Test Sample Weight Change	The balance weighs 2000g, the weighing accuracy is 0.1g, and the height of the weighing support rod is adjustable.
Gas	For propane with a purity of more than 95%, the minimum pressure is 3.5kPa±kPa.
Automation	Computer automatic control, acquisition, recording and settlement of results
Size	1.22M×0.68M×2M

Weight	About 500Kg
Power Supply	220V, 50Hz, 4KW

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