User`s manual

Functions Functions • 2-11
2.4.5 Unit Conversion and Temperature Functions
TANR(value)
Same as the TAN function, except value is assumed to
be radians.
TANR(PI) result: 0
TANR(1) result: 1.56
ASINR(value)
Same as the ASIN function, except value is assumed
to be radians. Val ue must be constrained to between -1
and 1, otherwise a Bad Result math error will occur.
ASINR(PI) result: ERROR
ASINR(1) result: 1.57
ACOSR(value)
Same as the ACOS function, except value is assumed
to be radians. Val ue must be constrained to between -1
and 1, otherwise a Bad Result math error will occur.
ACOSR(PI) result: ERROR
ACOSR(1) result: 0
ATANR(value)
Same as the ATAN function, except value is assumed
to be radians.
ATANR(PI) result: 1.26
ATANR(1) result: 0.79
Function Description Examples
EUC(value, type)
Converts the value of value from its engineering unit,
designated by type, to its equivalent SI unit. Refer to
Table 2-2 for a list of unit types, suffixes, and their
equivalent SI units.
EUC(212,DF) result: 100 (converts
212°F to 100°C)
P2T(pressure, refrigerant)
Used for refrigeration and HVAC. Converts pressure
to the corresponding temperature based on the chosen
refrigerant. This function accepts the following values
for refrigerant : R502, R22, R401A, R401B, R402A,
R402B, R408A, R134A, R404A, R507, and R717.
P2T(100PSI,R22) result: 15.1 DC (59.1
DF)
P2T(6BAR,R404A) result: 4.9 DC (40.8
DF)
T2P(temperature, refrigerant)
Used for refrigeration and HVAC. Converts tempera-
ture to the corresponding pressure based on the chosen
refrigerant. This function accepts the following values
for refrigerant : R502, R22, R401A, R401B, R402A,
R402B, R408A, R134A, R404A, R507, and R717.
T2P(15.1DC,R22) result: 100 PSI
T2P(40.8DF,R404A) result: 6 BAR
ENTHALPY(temp,hum)
Returns enthalpy for the given temperature temp and
relative humidity hum.
ENTHALPY(78DF,50) result: 86.3 DF
DEWPT(temp,hum)
Returns the dewpoint for the given temperature temp
and relative humidity hum.
DEWPT(78DF,50) result: 58.3 DF
WETBULB(temp,hum)
Returns the wet bulb temperature for the given tem-
perature temp and relative humidity hum.
WETBULB(78DF,50) result: 65.1 DF
APPTEMP(temp,hum)
Returns the apparent temperature for the given tem-
perature temp and relative humidity hum.
APPTEMP(78DF,50) result: 78.5 DF
Table 2-13 - Conversion and Temperature Functions
Function Description Examples
Table 2-12
- Extended Trigonometry Functions