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July 2022
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Connection of external components
Limit value mode
Programming: Menu > Settings > Analysis > Limit Mode
Mode: Max/Min
(blending device, for monitoring a required range of measured values)
The measured value should be less than limit value 1 (upper limit value 1) and greater than limit
value 2 (lower limit value 2). If the measurement result is smaller than limit value 2 (lower limit value
2), the measured value is reported as too low to relay 2.
If the measured value of the sample exceeds the limit value 2 (lower limit value 2), relay 2 drops out
and establishes a connection from COM to NC. In addition, the symbol R2 is not marked in the
display.
If the measured value of the sample falls below limit value 2 (lower limit value 2), relay 2 is
energised and establishes a connection from COM to NO. In addition, the symbol R2 is marked in
black in the display.
Mode: Max/Max
(softening system, for signalling when limit value 2 (lower limit value 2) is
exceeded)
In Max/Max mode, the required measured value is below limit value 1 (upper limit value 1) and limit
value 2 (lower limit value 2). Limit value 2 (lower limit value 2) must be programmed smaller than
limit value 1 (upper limit value 1). In this way, limit value 1 is used as an alarm message and limit
value 2 as a pre-alarm.
If the measured value of the sample falls below limit value 2 (lower limit value 2), relay 2 drops out
and establishes a connection from COM to NC. In addition, the symbol R2 is not marked in the
display.
If the measured value of the sample exceeds the limit value 2 (lower limit value 2), relay 2 is
energised and establishes a connection from COM to NO. In addition, the symbol R2 is marked in
black in the display.