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CHAPTER 4 FUNCTIONS
4
4.14 Sensor Correction Function
(2) Sensor two-point correction function
With this function, the difference between the temperature process value (PV) and the actual temperature
between the two points selected in advance (a corrected offset value and a corrected gain value) is stored. Based
on this gradient, the difference between a sensor and the actual temperature is corrected.
Sensor two-point correction is performed in the setting mode (Setting/operation mode status (Xn1): off). In
addition, set CH Stop mode setting (Un\G33, Un\G65, Un\G97, Un\G129) to Monitor (1).
Before
correction
Input temperature
Temperature
process value (PV)
CH Sensor two-point correction gain value
(measured value)
(Un\G546, Un\G578, Un\G610, Un\G642)
CH Sensor two-point correction offset value
(measured value)
(Un\G544, Un\G576, Un\G608, Un\G640)
CH Sensor two-point correction offset value
(corrected value)
(Un\G545, Un\G577, Un\G609, Un\G641)
CH Sensor two-point correction gain value
(corrected value)
(Un\G547, Un\G579, Un\G611, Un\G643)
After
correction