Yokogawa digitalYEWFLO (DY) - Manual (Page 69)

MAINTENANCE
IM 1F2B4-01-YIA
Page 73
milliAmp example:
Calculate the new settings using X and Y values from above:
(Equation 1)
NEW H08 setting = ( 4 - X ) / ( Y - X ) * 100 + orig. H08 setting
example: 0.89 = ( 4 - 3.93 )/( 19.72 - 3.93 ) * 100 + 0.45
Example: milliAmp
Original New
H08 .45 .89
H09 1.25 2.58
X 3.93 mA 4.00 mA
Y 19.72 mA 20.00 mA
(Equation 2)
NEW H09 setting = ( 16 + X - Y )/( Y - X )*100 + current H09 setting
example: 2.58 = ( 16 + 3.93 - 19.72 )/( 19.72 - 3.93 ) * 100 + 1.25
0-100% example:
Calculate the new settings using X and Y values from above, where X and Y have been converted
to % of span values.
Example: 0-100%
Original New
H08 .45 .89
H09 1.25 2.58
X -0.43% 0.0%
Y 98.25% 100.0%
(Equation 1)
NEW H08 setting = - X / ( Y - X ) * 100 + orig. H08 setting
example: 0.89 = - ( -0.43 )/( 98.25 - (-0.43)) * 100 + 0.45
(Equation 2)
NEW H09 setting = ( 100 + X - Y )/( Y - X )*100 + current H09 setting
example: 2.58 = ( 100 + (-0.43) - 98.25 )/( 98.25-(-0.43)) * 100 + 1.25