Samson TROVIS 5474 Mounting And Operating Instructions page 23

If the temperature values displayed at the controller differ from the actual temperatures, the
measured values of all connected sensors can be changed or readjusted. To calibrate a sensor,
the currently displayed sensor value must be changed such that it matches the temperature (ref-
erence temperature) measured directly at the point of measurement.
Perform the calibration in function block Fb23 in Co6.
Proceed as follows:
Switch to the parameter and configuration level.
Display: PA1
Select Co6 configuration level.
Open Co6 configuration level.
Select function block Fb23.
Confirm setting.
Display: 0 0 0 0
Enter currently valid key number.
The function block Fb23 blinks on the display.
Activate function block.
Confirm setting.
Select the function block for the sensor to be calibrated:
The function blocks Co6 -> Fb01 to Fb17 correspond to the binary inputs BE1 to BE17
in the terminal wiring plan (–> page 78 onwards) depending on the selected system
code number (Anl), e.g. Co6 -> Fb03 for sensor VFg (all systems).
Activate editing mode for sensor.
Fb_ blinks on the display.
Display measured temperature.
Activate editing mode for measured temperature.
Measured temperature blinks.
Correct measured temperature.
Read the actual temperature directly from the thermometer at the point of measure-
ment and enter this value as the reference temperature.
Confirm corrected measured temperature.
Additional sensors are calibrated similarly.
Start-up
23
EB 5474 EN