The FluxTeq R-value measurement system is an easy way of measuring the R-value of building materials. It consists of an inexpensive Arduino-based data acquisition system that measures R-value directly using its heat flux and temperature sensors.
The system comprises of a PHFS-09e heat flux sensor and an additional temperature sensor to allow for simultaneously measuring the inside and outside temperatures along with the heat flux. The calculated R-value is then stored on an SD card in Excel file format.
The equipment is standalone and does not require a computer. The tap of a button will immediately begin data collection. It uses the ASTM C1046 and ASTM C1155 standards and is the only method of measuring R-values in situ.
An extra thermocouple allows for outside surface temperature measurements.
- Standalone, no computer needed, with readout displayed on an LCD screen
- SD card
- Micro USB power adapter for charging device
- Can measure R-value of thermal insulation, walls, windows, etc. in situ
- Cost: $750 for the system and sensors, can be rented for $50 per month in the US (sensors need to be purchased)
|Input Signal Type:
||Heat flux sensor and Type-T Thermocouple Analog DC Voltages
|Number of Channels:
||8 Differential (3 used but can request custom programming/sensors)
|Type of ADC:
|Heat Flux Resolution Using PHFS-01:
||Approximately 1–2 W/m2
|Heat Flux Resolution Using PHFS-09:
||Approximately 0.1–0.2 W/m2
|Maximum Sampling Rate:
||Up to 2.5 Hz
|Overall Package Dimensions:
||5.0" x 4.2" x 3.5" (12.7 x 10.7 x 8.9 cm)
||Integrated Thermistor for Cold Junction Temperature Compensation
|SD Memory Card Storage Capacity:
||8 Gigabytes (SD card included)
|Number of Measurements:
||Approx. 10 million measurements using all 8 channels