Instruction manual

8.0 DETAILED DATA SETTING SM425 INSTRUCTION MANUAL
8.6.3 Setting Fuels
8.6.3.1 Input Parameters
The SM425 calculates the moisture content contained in exhaust gases. The following explains the fuel
parameters necessary for calculation and their entries. The moisture quantity may be mathematically
expressed by:
Figure 8-16 Moisture quantity calculation
Fill in the boxes with fuel parameters in Equation 2 above to calculate the moisture content. Use A0, Gw,
and X shown in Table 8-9. If there are no appropriate fuel data in Table 8-9, use the following equations
for calculation. Find the value of “Z” in Equations 1 and 2 using Japanese Standard JIS B 8222. If a
precise measurement is not required, obtain the value of “Z” using a graph for the absolute humidity
indicated by a dry and wet bulb hygrometer.
42500001 REV A 135