Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 100)

Rev. 5/09 -A.4- TFXP
UNIT list. Select the appropriate RATE INTERVAL from the list
(seconds, minutes, hours, days). Be aware that the instrument
can only display values as large as 99,999,999.
4. Select an appropriate TOTALIZER UNIT from the list; BTUs,
MBTU, MMBTU, or TON .
5. From the main display, three values can be accessed that may
aid in troubleshooting the heat flow instrument. The
temperature being read by RTD1 is indicated as TEMP1 (all
values are degrees Celsius) , RTD2 as TEMP2 and the absolute
difference as TEMPDIFF.
Heat Capacity of Water (J/g°C)
°C 0 1 2 3 4 5 6 7 8 9
0 4.2174 4.2138 4.2104 4.2074 4.2045 4.2019 4.1996 4.1974 4.1954 4.1936
10 4.1919 4.1904 4.1890 4.1877 4.1866 4.1855 4.1846 4.1837 4.1829 4.1822
20 4.1816 4.0310 4.1805 4.1801 4.1797 4.1793 4.1790 4.1787 4.1785 4.1783
30 4.1782 4.1781 4.1780 4.1780 4.1779 4.1779 4.1780 4.1780 4.1781 4.1782
40 4.1783 4.1784 4.1786 4.1788 4.1789 4.1792 4.1794 4.1796 4.1799 4.1801
50 4.1804 4.0307 4.1811 4.1814 4.1817 4.1821 4.1825 4.1829 4.1833 4.1837
60 4.1841 4.1846 4.1850 4.1855 4.1860 4.1865 4.1871 4.1876 4.1882 4.1887
70 4.1893 4.1899 4.1905 4.1912 4.1918 4.1925 4.1932 4.1939 4.1946 4.1954
80 4.1961 4.1969 4.1977 4.1985 4.1994 4.2002 4.2011 4.2020 4.2029 4.2039
90 4.2048 4.2058 4.2068 4.2078 4.2089 4.2100 4.2111 4.2122 4.2133 4.2145
Table A.1 — Heat Capacity of Water
HEAT FLOW DDENDUM
HEAT FLOW ADDENDUM