Inpt" Menu - Level Pro ITC 250 SERIES User Manual

250 SERIES
Loop Powered Display
"modE" - relay operation mode:
the relay is not active (doesn't change state)
"noAc"
one threshold mode, the relay turns ON when input signal exceeds from the bottom SEtP+HYSt value, and turns
"on"
OFF when exceeds from the top SEtP-HYSt,
one threshold mode, the relay turns ON when input signal exceeds from the top SEtP-HYSt value, and turns OFF
"oFF"
when exceeds from the bottom SEtP+HYSt,
- two threshold mode, the relay turns ON when the input signal exceeds from the bottom
"lower threshold + HYSt" or from the top "bigger threshold - HYSt", and turns OFF when exceeds from the
"in"
top "lower threshold - HYSt" or from the bottom "bigger threshold + HYSt". The bigger threshold means bigger
one of "SEtP" and "SEt2" thresholds, the lower threshold means lower one of "SEtP" and "SEt2" thresholds.
- two threshold mode, the relay turns ON when the input signal exceeds from the top "lower threshold - HYSt"
or from the bottom "bigger threshold + HYSt", and turns OFF when exceeds from the bottom
"out"
"lower threshold + HYSt" or from the top "bigger threshold - HYSt". The bigger threshold means bigger one of
"SEtP" and "SEt2" thresholds, the lower threshold means lower one of "SEtP" and "SEt2" thresholds.
• LED lights when "ON" part of the relay is closed, independently of relay's mode.
• When power supply fail, unit sets relay state accordingly to "AL" parameter.
- this parameter defines the relay reaction when some critical situations occurs:
"noCH" - relay do not change his state,
"AL"
"on"
"oFF" - relay will be turned OFF.
If parameter "modE" is set to "on" , "oFF", "in" or "Out" the "critical situation" means that
allowable measurement range is exceeded.
• If option "noCH" is selected for "AL" parameter, behaviour of the relay may depend on "FiLt"
parameter in some cases. If "FiLt" is set to big value and the input signal drops, result value of the
measure will change slow, causes of turning on or off relay due to thresholds values. The critical
situation is slowly detected, so it is impossible to predict the relay state in that situations.
• If parameter "AL" = "on", the relay will be turned on in the critical situations, even if his parameter
"modE" = "noAC".

7.3.2. "inPt" menu

This menu presets the measurement input:
- this option presets type of the conversion characteristic, and can be set to:
"Lin"
"Sqr" - square
"CHAr"
"Sqrt" - square root
"USEr" - user defined characteristic. Maximal length 20 points. Every point is defined by user. Adding,
If user defined characteristic is selected, and if number of defined points is lower than 2 then warning
"Errc" is displayed in measurement mode.
- relay will be turned ON,
}
- linear
When one of those characteristics is chosen display
range is defined by "Lo C" and "Hi C".
Editing and Deleting of points is done by options "AddP", "EdtP", "dELP" ("InPt" menu) respectively.
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