Endress+Hauser RMA 422 - 5.3 Display;Measurement Range; 5.2 Mathematics Channel Offset and Linearisation; Setting the Display Reference Value

5.2 Mathematics channel
This function group is only available if the unit has been fitted
with the 2nd analogue input option.
The mathematics channel contains the result of the signal
combination of the two input process values using the
mathematics formula:
= [(Factor1
*
Input1) Operator (Factor2
*
Input2)] + Offset
Meaning:
Factor = Value
*
Decimal point (FA1
*
FADP1, FA2
*
FADP2)
Input = for complete description of the analogue inputs see
chapter 5.1 (
IN1 , IN2)
Operator = Addition, subtraction, multiplication (
MAOP)
Offset = Value
*
Decimal point (MAOFF
*
MADP)
Parameter Setting up selections
Default
settings
Actual
setting
* Sensor scale 0%
SCLO1 /*SCLO2
Sensor measurement range
start
Value:
-19999 to 99999
0,0
* Sensor scale 100% SCHI1 /*SCHI2
Sensor measurement range
end
Value:
-19999 to 99999
100,0
* Measured value
decimal point
DIDP1 /*DIDP2
Selection of number of
decimal points in the display
and measurement range.
Selection range:
0 to 4 decimal points
9999,9
Measured value scale 0%
DILO1 /*DILO2
Display value at 0% sensor
value.
Value:
-19999 to 99999
0,0
Measured value scale
100%
DIHI1 /*DIHI2
Display value at 100%
sensor value.
Value:
-19999 to 99999
100,0
Measaured vale offset
DIOF1 /*DIOF2
Signal offset to match
measured value display
Value:
-19999 to 99999
0,0
Process transmitter
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