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E-mail
358143271@qq.com
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Phone
13319444134
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Address
1210, 12th Floor, Building 1, No.5 Ronghua Middle Road, Beijing Economic and Technological Development Zone, Beijing
Product Categories
Beijing Qianli Technology Co., Ltd
How much does a high-precision heat transfer coefficient tester for doors and windows cost
NegotiableUpdate on 02/12
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Overview
The heat transfer coefficient measuring instrument for doors and windows is mainly implemented through the calibration hot box method (based on GB 8484 standard) or two-dimensional steady-state heat conduction software calculation (based on JGJ 151 standard). The core is to measure the heat transfer efficiency through doors and windows, and the lower the value, the better the insulation performance. A professional testing device based on the principle of stable heat transfer and using the calibration hot box method, which complies with the national standard GB/T8484-2008, is used for grading the insulation performance of doors, windows, and curtain walls in construction projects.
Product Details
The insulation testing equipment for building doors and windows includes:Door and window heat transfer coefficient detectorThermal insulation performance testing equipment for building curtain walls, doors and windows, heat transfer coefficient of building curtain walls,Aluminum alloy window heat transfer coefficient detection instrument,Measurement instrument for heat transfer coefficient of doors and windowswait
Product model: QTB
Measurement instrument for heat transfer coefficient of doors and windowsProduct Overview
The wall insulation performance testing device is suitable for measuring various types of walls and insulated glass,Insulation performance of laminated glass and other materials,Integrated heat flow meter method,Protection hot box method and calibration
The characteristics of the hot box method. Therefore,Depending on specific conditions,Use according to local conditions,Fully leverage its advantagesThe detection equipment consists of three parts:Box, temperature controller, and inspection device. The specimen rack is used to place the testing material,The latter half of the cold box consists of components such as the compressor unit and temperature control. Hot box outside the box,Equipped with one precision temperature controller, twelvedirect current
One power supply,For use with uniform hot air fans,The inspection instrument is used for data collection and processing. inspectionThe instrument adopts a microcontroller system and a high stability, low drift, and low noise instrumentUsing an amplifier,Simultaneously using platinum resistors as sensing elements for the testing bed,And developed multiple typessoftware,Improved and expanded its accuracy and functionality. Not only suitableUsed for indoor inspection of enclosure structures,And the circumference can be measured on-site in winter or summerThermal performance and heat loss of protective structures.
execution standard
CB/T13475-2008Measurement, calibration, and protection of adiabatic steady-state heat transfer properties using a thermal chamber method
GB/T10295-2008Determination of steady-state thermal resistance and related characteristics of insulation materials using a heat flux meter method
Door and window heat transfer coefficient detectorTechnical Specifications
1.hot box
Temperature control range of the hot box:ambient temperature~40Continuous controllable temperature fluctuation of air inside the box at ℃0.5℃
The heat transfer system of the box is affected by the number《5%. Power(500w
2.cold box
Cold box temperature control range:-10℃~Environmental temperature.(The ambient temperature is25Below ℃)
The temperature fluctuation of the air inside the box is ≤ ± 5 ° C1℃,power(800W
3.Temperature and Heat Flow Circuit Detector
Temperature measurement range:-100.00~+100.00℃
Heat flow range:0.3~200.00m
collection speed:200ms/Each channel
Collection accuracy:Pt1000Basic error is less than X0
working environment:temperature:-20℃~50℃,humidity:less than90%R
Output relay contact capacity:250VAC,2A(resistive load)
Product Features
1Before leaving the field, the heat flow meter should be calibrated by a qualified third-party calibration institution,And provide calibration data.
2Using platinum resistors as temperature sensing elements,high precision,Good stability
3、2bitLEDChannel number display, fivebitLEDMeasurement value display,Alarm status indicator lights for each channel
4、3Various alarm methods, twoPoint common alarm relay output
5Each input channel is equipped with surge and overvoltage protection,And unused channels can be closed at will.
6Strict anti-interference design,Suppress fast pulse group interference and other electromagnetic interference generated by relays, contactors, etc. on site,The anti-interference ability has reachedIIGrade.
7Automatic compensation for time drift and temperature drift.
8Each channel independently sets a digital filtering time constant,Improve display stability value,And each channel is independently set with zero point and full degree correction,Improved the measurement accuracy of the system. The measurement and control software can be used to detect the heat flow meter method,It can also be applied to calibrate the hot box method for detection
Overall dimensions
Qtb -10
Wall specimen size1×1mthickness0.33m
hot box(Width x Height x Thickness):1.22×1.4×0.6m
cold box(Width x Height x Thickness):1,22×1.4×0.8m
Test piece frame(Width x Height x Thickness):1.22×1.4×0.33m
QTB-15
Wall specimen size1.5×1.5mthickness0.4m
hot box(Research x height x thickness):2.14×2.14×1m
cold box(wideXtallXthick):2.14×2.14×1m
Test piece frame(Width x Height x Thickness):2.14×2.14×0.4m
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