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DRS series high-temperature thermal conductivity tester (protective flat plate heat flux meter method)

This instrument is a high-temperature thermal conductivity testing instrument for insulation materials developed based on our factory's DRS-2 water flow flat plate method thermal conductivity tester. Compared with DRS-2, it has improved resolution and automation, shortened testing time, made maintenance easier, and made instrument performance more reliable. This instrument is suitable for testing the thermal conductivity of refractory insulation materials, ceramic fibers, insulation felt, textiles, boards, bricks and other materials at different temperatures. Widely used in material analysis and testing in universities, research institutions, quality inspection departments, and production plants.

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Main technical parameters

The DRS series instruments are mainly used for detecting the thermal conductivity of insulation materials at high temperatures. DRS-3B has a vacuum atmosphere protection function to prevent sample oxidation.

DRS-4 and DRS-4A both use electric pressure and automatic thickness measurement. The difference is that the DRS-4 hot plate uses heat-resistant stainless steel, which has a slightly lower operating temperature, while the DRS-4A hot plate uses silicon carbide, which has a slightly lower pressure resistance. In addition, an additional thickness correction system is required for thickness measurement, but the temperature used on the hot surface is higher.

Model	DRS-3	DRS-3A	DRS-3B
Thermal conductivity range	0.0010-3W/mk	0.0010-3W/mk	0.0010-3W/mk
Testing accuracy	±5％	±5％	±5％
Hot surface temperature range	100-1200℃	100-1200℃	100-1200℃
Calorimetric temperature control method	Thermostatic water tank	Semiconductor refrigeration	Semiconductor refrigeration
Thermal protection and temperature control methods	Semiconductor refrigeration	Semiconductor refrigeration	Semiconductor refrigeration
Calorimetric plate size	100×100（mm）	100×100（mm）	100×100（mm）
Heat flow meter size	100×100（mm）	100×100（mm）	100×100（mm）
Sample temperature measurement points	4	4	4
Sample atmosphere environment	air	air	-0.095MPa；Atmosphere protection
Sample size	230×230～250×250（mm）；thickness10～100（mm）
Measurement control method	Computer fully automated testing, data processing, and the ability to generate detection reports for printing and output
Host power supply	Voltage 220V; Frequency 50Hz; Total power ≤ 5KW
Instrument configuration	Including one DRS-3 testing host, one set of software, one set of testing thermocouples, one high-precision constant temperature water tank, and one desktop computer (can be provided by the purchaser)	Including one DRS-3A testing host, one set of software, one set of testing thermocouples, one roll of rubber water pipe (instrument needs to be connected to tap water), and one desktop computer (can be provided by the purchaser).	Including one DRS-3B testing host, one set of software, one set of testing thermocouples, one roll of rubber water pipe (instrument needs to be connected to tap water), one set of vacuum sealing device, one vacuum pump, and one desktop computer (can be provided by the purchaser).
Optional items	Multiple layers of testing can be selected according to customer requirements. For each additional layer tested, an additional testing thermocouple is required, and the cost will be calculated separately.

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