Weidmuller GPRS Alarm Unit - Manual (Page 50)

Configuration
4-48
Measured unit
• Selection of the analog measurement unit: Volt
Ampere
Temperature
Measured value
• This field displays the measured value of the inputs.
• Clicking on the field refreshes the measured values of the two
analog inputs.
Factor
• It is possible to scale the measured value with a factor.
In this case, the calculation is performed as follows: (Factor
∗
measured value) + offset, i.e. the slope of the measurement
characteristic is not changed so that the displayed measured value
can be matched to the physical measurement quantity.
Example: Assumed 0 … 10 V is to correspond to a water level of
0 … 100 cm, the factor to be set is 10.
Offset
• It is possible to shift the measured value using an offset.
In this case, the calculation is performed as follows: (Factor
∗
measured value) + offset, i.e. the zero of the measurement
characteristic is offset.
Debouncing time
• The measured value must have been either higher or lower than
the appropriate limit value for at least the set debouncing time for a
message to be triggered.
Display unit
• A unit, e.g. "V", which is inserted into the text block #AI1#, #AI2#,
together with the measured value.
• Max. 3 characters.
Upper limit value
• If the measured value exceeds the upper limit value, a message
can be triggered.
• Further messages can only be triggered if the measured value has
fallen below the lower limit value and has then again risen above
the upper limit value.
Text for upper limit value
• A text that can be inserted into the message text using the text
block #VAL#; thus, it is possible to modify the message text