IMO Precision Controls K7 Series, Руководство пользователя

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Chapter 7 Usage of Functions
7-
５３
Conversion method is as below
1) scaling conversion value (A/D conversion) = [(data of 0 ~ 20 ㎃ ) – 800] x 4000/3200
example) in case of 8 ㎃ input at range 0 ~ 20 ㎃
before the scaling conversion : 8 ㎃ / 5 ㎂ = 1600
after the scaling conversion : (1600 –800) x 1.25 = 1000
2) scaling conversion value (D/A conversion) = [(data of 4 ~ 20 ㎃ ) x 3200/4000] + 800
example) in case of ‘ 1000’ output at range 4 ~ 20 ㎃
current output value before the scaling conversion : 1000 x 5 ㎂ = 5 ㎃
current output value after the scaling conversion : (1000 x 0.8) + 800 = 1600
1600 x 5 ㎂ = 8 ㎃