Papua New Guinea Thermal Conductivity Tester
Product Description
Xiangke DRH-ZD-500 Thermal Conductivity Tester (Guarded Hot Plate Method),Camping Mattress Thermal Resistance Tester
This instrument uses the guarded hot plate method to mainly test the thermal conductivity and thermal resistance of materials such as plastics, glass, fibers, foam, foamed cement, insulation materials, and camping mattresses. Instrument reference standards: GB/10294-2008 (Determination of steady-state thermal resistance and related properties of thermal insulation materials - Guarded hot plate method), ISO 8302-1991 Thermal insulation - Determination of steady-state thermal resistance and related properties - Guarded hot plate method, ASTM-F3340-18 Standard Test Method: Thermal resistance of camping mattresses using a guarded hot plate apparatus.
Performance characteristics:
1. Automatic pressurization system: Computer-controlled automatic pressurization allows testing of thermal conductivity under different pressures. This is more scientific and data-driven than manual pressurization, resulting in better repeatability.
2. Multiple measurement types: In addition to measuring hard plates, various accessories can be selected to measure various special materials, such as granular materials, loose materials, and soil.
Xiangke DRH-ZD-500 Thermal Conductivity Tester (Guarded Hot Plate Method) Main Technical Indicators:
1. Thermal conductivity range: 0.0010～3.000W/mk;
2. Test accuracy: ±3％;
3. Calorimetric center area: 250×250mm (side length accurate to 0.01mm);
4. Effective test area: 500×500mm; Sample loading space 800×800mm;
5. Hot surface temperature range: Room temperature～100℃, temperature resolution 0.01℃, measurement accuracy: 0.05℃; Hot plate heating uses a flexible printed circuit board method.
6. Cold surface temperature range: 0～60℃, temperature resolution 0.01℃;
7. Computer-controlled fully automatic testing, data processing, and report generation, with printable output;
8. Automatic pressurization is available to detect thermal conductivity under different pressure conditions. The pressurization range is adjustable from 0-1000N, with a resolution of 0.1N.
9. Cold and hot plate temperature difference: Default value 30℃ (commonly used standard temperature difference), users can also set it themselves.
10. Voltage: 220V, 50HZ.
Introduction to the measuring device
The DRH-ZD-500 instrument mainly consists of a hot plate temperature control system, a calorimetric power control system, a cold plate temperature control system, a sample clamping system, and a computer data control system. The instrument can also be optionally equipped with a sample thickness measurement system, a pressure measurement system, an electric pressurization system, and an external protective thermal environment temperature control system.
The hot plate consists of a calorimetric plate and a protective plate. It is equipped with a calorimetric plate heater (or water-cooled external thermostat control), a protective plate heater, a calorimetric-protective temperature difference thermocouple, and a temperature probe. The protective plate is controlled by a high-precision temperature controller to provide a stable protective temperature; the calorimetric plate is heated by a high-precision temperature controller-controlled DC regulated power supply, and the calorimetric temperature is controlled according to the calorimetric-protective temperature difference thermocouple signal, and the measured calorimetric power is the heat flow value; the hot surface temperature is measured by a built-in or external temperature probe.
The cold plate has a water channel and a temperature probe, which are connected to an external thermostat bath through a pipe. By using the circulation of the medium between the external thermostat bath and the cold plate, a second constant temperature field is formed in the cold plate to provide a stable temperature for the cold end surface. The cold surface temperature is measured by a built-in or external temperature probe. Due to different temperature requirements, there are semi-conductor refrigeration temperature control; electric heating temperature control, etc.
The sample clamping device has two types: manual and automatic. Automatic device composition: 1. The sample thickness measuring device consists of a displacement sensor and a digital display meter, which can detect the sample thickness in real time; 2. The pressure measurement system consists of a pressure sensor and a digital display meter, which can detect the sample pressure in real time; 3. The electric pressurization system consists of a motor, a linear reducer (or stepper motor), an electronic speed regulator, and a control circuit to achieve automatic pressurization and unloading.
The computer system completes data acquisition, data processing, and instrument control, realizing fully automatic testing.
Configuration: Includes one DRH-ZD-500 type test host, one software, one high-precision thermostat bath, and one desktop computer (as configured in the contract) 。
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