Graphic Recorder
28
※ ( . ) : Single variable
( . . ) : 2 variables with the separation of ","
( : ) : 2 variables with the calculation of ",", ":"Calculation of continuous values ( . . . ) : 3 variables with the separation of ","
(Caution 1) The calculation error occurs when divided with "0".
(Caution 2) The error occurs when the calculation is done with "0" or minus value.
(Caution 3) The error occurs when the tangent value is calculated with ±(2n-1) x (π/2).
(Caution 4) The inverse sine and cosine functions show calculation errors either below "-1" or over "1".
(Caution 5) The result is effective in 0 < wet bulb < dry bulb < 100 based on the theory of the relative humidity.
(Caution 6) The calculation error occurs if the denominator is "0".
(Caution 7) The calculation error occurs at ±n x π.
(Caution 8) The imaginary number is not supported and the calculation error occurs if the value in the root is below 0.
(Caution 9) The involution of e is limited from -9 to 9 due to the digit display.
(Caution 10) The calculation error occurs if the antilogarithm of the log is less than 0.
Fig. 42) Example of using the calculation formula 1
Fig. 43) Example of using the calculation formula 2
(Fig. 42) is the example of the configuration as an example of using the calculation formula which displays the
multiplication of the CH6 with 2.5 to the channel 1.
(Fig. 43) is the example of the configuration as an example of receiving the temperature from the channel 2 and
channel 3 as the dry bulb temperature and the wet bulb temperature, respectively.
Formula
Caution
Function
Description
MIN ( : )
-
Minimum value
MIN (CH1, CH4) → Minimum value of the CH1 and the CH4
MIN (CH1 : CH4) → The minimum value between the CH1, CH2, CH3 and CH4
ASIN ( . ) (Caution 4) Inverse value of the sine
ASIN (CH2) → The inverse sine value of the CH2
ACOS ( . ) (Caution 4) Inverse value of the cosine
ACOS (CH2) → Inverse value of the cosine CH2
ATAN ( . )
-
Inverse value of the tangent ATAN (CH2) → Inverse value of the tangent CH2
HUMI ( . . ) (Caution 5)
Conversion value of the
relative humidity
HUMI (CH1, CH2) → The relative humidity with the dry bulb
temperature of the CH1 and the wet bulb temperature of the CH2
ABS ( . )
-
Absolute value
ABS (CH2) → The absolute value of the CH2
D2R ( . )
-
Convert the degree to the radian D2R (CH2) → Convert the CH2 to the radian
INV ( . ) (Caution 6) Inverse value
INV (CH2) → Inverse value of the CH2
CTAN ( . ) (Caution 7) Inverse value of the tangent CTAN (CH2) → The inverse tangent value of the CH2
PCT ( . . . )
-
x / (Hi – Lo)
PCT (x, HI, Low) → x: Target value, Hi: Maximum value, Lo: Minimum value
SQRT ( . ) (Caution 8) Square root value
SQRT (CH2) → The square root of the CH2
EXP ( . ) (Caution 9) Involution of e
EXP (CH2) → The value of involution of e to the CH1
LN ( . ) (Caution 10) Natural log value
LN (CH2) → The natural value with e and the antilogarithm of the CH2
LOG ( . ) (Caution 10) Commercial log
LOG (CH2) → The natural value with e and the antilogarithm of the CH2
The calculation error occurs if the calculation formula referring to the channel is referred.
EX) CH1 calculation formula : SIN(CH2), CH2 calculation formula : For COS(CH1)
Caution
