ETUN Calculates the average tank usage (i.e. chemical usage) between the current value and the next entered value. When the tank is refilled, this function averages the last x days drops to estimate the usage on that day.

SYNTAX:

ETUN(TankLevelVar,MovingAvgDaysOnFill)
where :
TankLevelVar is a conditional variable x that refers to the level of the tank
MovingAvgDaysOnFill a constant that sets the number of days to average the drops on days where tank is filled.

NOTES: This function will only search forward and backward 183 days (6 months) from the day it is attempting to calculate.

SEE ALSO: ETUP, ATUFP, ATULN, ATULP, TUFN, TUFP, TULN, TULP

EXAMPLES

V11263 =ETUN(C11259,7)