Energy and Exergy Analysis of a Plane Reflector Integrated Photovoltaic-Thermal Water Heating System

Table 2

Range and accuracy of major instruments.

Instrument	Range	Accuracy
Pyranometer	0 to 1800 W/m^2	±5% of full scale
External temperature sensor	−40° to 65°C	±0.5°C under 43°C, ±1°C over 43°C
Thermocouple (K type)	−200 to 1250°C	0.75% above 0°C, 2.0% below 0°C