Endress+Hauser prosonic flow 92, Руководство по эксплуатации

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11 Description of device functions Prosonic Flow 92
84 EHauser
11.6.1 Group INPUTS AND OUTPUTS
Inputs and Outputs
Þ
Function
Inputs and Outputs
Actual Value (Input) This function is used to display a scaled measured value which is propor-
tional to the input current. The graduation of the scale is set in the function
“IINPUT RANGE” (see below).
Input Range This function is used to convert the current input range (4...20 mA) to a
scaled measured value which can be displayed and logged as the actual
measured value. To convert an input value in the range of 4...20 mA to a
measured value between 0 and “X” relative units, set the value for “INPUT
RANGE” to “X”.
Format:
x.xxx E +/- x
Factory setting:
1.000E2
Current Adjust (Input) This function is used to automatically adjust the zero point (4 mA) and full
scale value (20 mA) of the current input.
Options:
4 mA – 20 mA
Note!
To perform this function, a 4 mA and 20 mA current signal (provided exter-
nally) must be feed into the current input.
4 mA
Adjustment of zero point for current input. To adjust the external current
source to 4 mA, move the cursor to the option “4 mA” and press the “ENT”
key. The zero point is automatically adjusted.
20 mA
Adjustment of full scale value for current input. To adjust the external current
source to 20 mA, move the cursor to the option “20 mA” and press the “ENT”
key. The full scale value is automatically adjusted.
Actual Value (Output) This function is used to display a scaled measured value which is propor-
tional to the output current. The graduation of the scale is set in the function
“OUTPUT RANGE” (see Page 85).
Note!
The display value in the function “ACTUAL VALUE” also depends on the set-
ting in the function “OUTPUT RANGE”.