A multiplier of 1.8 and an offset of 32 will convert the temperature to degrees F.įor temperature measurements, a multiplier (mult) of 1 and an offset of 0, would output in degrees Celsius. For example, the TCDiff instruction measures a thermocouple and outputs temperature in degrees C. Typically used to convert the raw measurement to engineering units or to units other than which is output. Right-click the parameter to display a list of defined variables.įactors by which to scale the raw results of the measurement. The name of the Variable that is the input for the instruction. Than 1, the Dest parameter must be a variable array. Measurements are made on consecutive channels. Type: Constant integer (or expression that evaluates as a The number of repetitions for the measurement or TheĪrray must be dimensioned large enough to hold all of the values returned from Greater than 1, the results are stored in an array with the variable name. If this instruction has a Repetitions parameter and it is Right-click the parameter to display a list of The Variable in which to store the results of the The error (T calculated - T standard) is +0.006 degrees at -200 degrees Celsius and -0.006 degrees at +850 degrees Celsius. The error in the linearization is less than 0.001 degrees between -100 and +300 degrees Celsius, and is less than 0.003 degrees between -180 and +830 degrees Celsius. The range of linearization is -200 to 850 degrees Celsius. The temperature is calculated according to the DIN 43760 specification adjusted (1980) to the International Electrotechnical Commission standard, referenced to the IPTS-68 (international temperature scale as defined in 1968). The input (Source) must be the ratio RS/RO, where RS is the RTD resistance and RO is the resistance of the RTD at 0 degrees Celsius. This instruction uses the result of a previous RTD bridge measurement to calculate the temperature in degrees Celsius. ![]() 'Example program to measure the 43347 RM Young PRT sensor using the ![]() A half-bridge measurement is made, and the PRT instruction converts the result of that measurement into temperature in degrees C. The following program provides an example of measuring an RM Young PRT sensor.
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