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DISPLAY CORRECTION
For matching the process value display to the local situation or to other instruments.
For input signals 0...20 mA / 4...20 mA / 0...10 V
InL/ InH are the indicated values at 0 % / 100 % of the signal. The values can be
adjusted with relevant correction (linear correction).
For thermocouples or Pt 100 (n = no correction)
Parallel correction CP: The display is corrected by the same
value in the overall range (positive or negative).
Slope correction CG: The display is corrected by a value
changing linearly in the range (increasing or decreasing, zero at
0°C / 32°F).
a
During correction adjustment, the controller
outputs are switched off.
Selecting the correction method
w Switch off mains and withdraw the controller from the housing.
w Close S.I.L. switch A (Ä MOUNTING).
w Plug in controller and switch on mains.
w The instrument is initialized and then the display is as follows (3 examples):
fParallel correction active
The values can be changed with I and D. If a value is acknowledged with M, this
method is activated with this value. The other method is switched off.
Adjusting the correction value
Two different types of adjustment are possible (12). Select the suitable one.
1 The temperature deviation is known:
CP Do not connect a sensor. Display = correction.
CG Do not connect a sensor. Display = End of range + / - correction.
2 The process value display must correspond with a measured temperature:
CP Connect sensor or reqired signal source. Display = Measured value + / - correction.
CG Connect sensor or reqired signal source. Display = Measured value + / - correction.
The difference between meas. value and 0°C / 32°F must be as high as possible.
Further commissioning
w Acknowledge correction value or indicated process value by means of key M.
w Switch off mains and wtihdraw the controller from the housing.
w Open S.I.L. switch A (Ä MOUNTING).
w Plug in controller and switch on mains.
w The instrument is initialized and then the controller is in operation.
16
fNo correction
Display
fSlope correction active
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