Title: +038=370.101-OE002T_02-Multical 801 Energimåler Kamstrup - Teknisk beskrivelse.pdf
6.2.2 E8 and E9 are used as a basis for calculation of volume-based average temperatures in inlet and outlet pipes respectively. With every integration (every 0.01 m3 for qp 1.5 m3/h) the registers are accumulated by the product of m3 × °C, which makes E8 and E9 a suitable basis for calculation of volume-based average temperatures.E8 and E9 can be used for average calculation during any period as long as the volume register is read at the same time as E8 and E9.E8= m3 × tF E8 is accumulated by the product of m3 × tFE9= m3 × tR E9 is accumulated by the product of m3 × tRResolution of E8 and E9E8 and E9 depend on the resolution of volume (m3)Volume resolution 0000.001 m3 00000.01 m3 000000.1 m3 0000001 m3Resolution of E8 and E9 m3 × °C × 10 m3 × °C m3 × °C × 0,1 m3 × °C × 0,01Example 1 After a year a heating installation has consumed 250.00 m3 district heating water and the average temperatures have been 95°C for inlet and 45°C for outlet. E8 = 23750 and E9 = 11250.