titUSS! Util*■»%*♦% till* Brochure Thermal resistance measuring system

with two measurement locations TRSYS20 is a high-accuracy measuring system used in determining the in-situ thermal resistance (R-value), thermal conductance (A-value), and thermal transmittance (U-value) of building envelope components. The system is mostly used for measurements according to standard practices of ISO 9869, ASTM C1046 and ASTM C1155. TRSYS20 is equipped with high-resolution electronics, two heat flux sensors of model HFP01 as well as two pairs of matched thermocouples for differential temperature measurements. Figure 1 TRSYS20: The measuring system consists of 2 HFP01 heat flux...

Introduction In-situ measurements of thermal resistance or R value are often applied in studies of buildings. Other possibilities are to measure its inverse value, the thermal conductance which is called the Λ-value, or to measure the thermal transmittance or U-value which includes ambient air boundary layer thermal resistance. The measurements of R, are based on simultaneous time averaged measurement of heat flux Φ in W/m2 through the wall and differential temperature ΔT in K across the wall: TRSYS20 consists of two HFP01 heat flux sensors, two matched thermocouple pairs, a measurement and control...

Figure 3 TRSYS20 graphical user interface, accessible through a web browser. User interface: MCU as a web server TRSYS20 is controlled via a PC. No software installation is required. The measurement and control unit (MCU) can be connected to a local area network (LAN) via ethernet or directly to a PC via USB. The MCU provides a graphical user interface in the form of a webpage that is accessible through a web browser. The graphical user interface allows the user to start and stop experiments; to monitor real-time heat flux, temperature and temperature difference measurement data; and to review...

Suggested use – Heat flux and differential temperature measurement for building R-value, Λ-value or U-value determination. Calibration & conformity assessment Calibration of TRSYS20 components is traceable to international standards. TRSYS20 is provided with formally traceable calibration certificates. HFP01 heat flux sensors are calibrated in accordance with ASTM C1130. Temperature difference sensors are “individually” tested as matched pairs

TRSYS20 specifications General specifications cable length per location rated operating temperature HFP01 and TC measurement duration range measurement resolution guard width to thickness ratio data storage capacity measurement resolution thermocouple type tolerance class required data analysis to determine building R-value and U-value the user according to ISO and ASTM standard practices number of measurement locations to local area network (LAN) via ethernet or directly to PC via USB graphical user interface Chrome 10 Firefox 4 Internet Explorer 9 Opera 11 Safari 5 or later rated operating...

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