54
Adjustmentandstart-up
hysteresis operating
The change of status is done when a threshold is detected (increasing measured value: threshold high (function
High) to be detected; decreasing measured value: threshold low (function Low) to be detected).
NO = Normally open
NC = Normally closed
ON
OFF
contact
Low High
process value
ON
OFF
contact
Low High
process value
Fig. 38: Hysteresis operating
Window operating
The change of status occurs whenever one of the thresholds is detected.
NO = Normally open
NC = Normally closed
ON
OFF
contact
Low High
process value
ON
OFF
contact
Low High
process value
Fig. 39: Window operating
9.11.11 setting the sensor parameters
The monitoring (see chpt. 9.13.2) of the redox ("ORP") sensor is impossible if the measurement mode is
set to "asymmetrical".
See chpt. 9.9 to access the Parameters menu.
This is
when the
device is be-
ing parame-
tered............
....................
Param
Sensor
Type:
pH
ORP
This is
when the
device is be-
ing parame-
tered............
....................
Mode:
Symmetric
Asymmetric
Mains Fcy:
50Hz
60Hz
TYPE
: choose the type of sensor used, pH or Redox ("ORP" choice)
MODE
: choose the type of measurement, symmetrical (differential) or asymmetrical.
English
Type 8202 ELEMENT