Proline Promass 83E/F/O Description of Device Functions - FMC ...

Device Functions Proline Promass 83
7 Block OUTPUTS
Function description
OUTPUTS PULSE/FREQUENCY OUTPUT (1...2) CONFIGURATION (FREQUENCY)
VALUE F LOW
(4204) ! Note!
This function is not available unless the FREQUENCY setting was selected in the
OPERATION MODE function (4200).
Use this function to assign a variable to the start value frequency (4202).
The value can be higher or lower than the value assigned to the VALUE F HIGH. Positive
and negative values are permissible, depending on the measured variable in question
(e.g. mass flow). You define a measuring range by defining the VALUE F LOW and
VALUE F HIGH values.
User input:
5-digit floating-point number
Factory setting:
0 [kg/h] or 0 [kg/l] or –50 [°C]
! Note!
• For a graphic illustration VALUE F LOW see the VALUE F HIGH function (4205).
• Note that values with different signs cannot be entered for VALUE F LOW
and VALUE F HIGH, if SYMMETRY is the setting selected for the MEASURING
MODE function (4206). In this case, the message “INPUT RANGE EXCEEDED”
appears on the display.
• The appropriate unit is taken from the UNIT MASS FLOW (0400),
UNIT VOLUME FLOW (0402), UNIT CORRECTED VOLUME FLOW (0404), UNIT
DENSITY (0420), UNIT REFERENCE DENSITY (0421) or
UNIT TEMPERATURE (0422) function (see p. 17 to p. 21).
VALUE F HIGH
(4205) ! Note!
This function is not available unless the FREQUENCY setting was selected in the
OPERATION MODE function (4200).
Use this function to assign a variable to the end value frequency (4203).
The value can be higher or lower than the value assigned to the VALUE F LOW. Positive
and negative values are permissible, depending on the measured variable in question
(e.g. mass flow). You define a measuring range by defining the VALUE F LOW and
VALUE F HIGH values.
User input:
5-digit floating-point number
Factory setting:
Depends on nominal diameter [kg/h] or 2 [kg/l] or 200 [°C]
! Note!
Note that values with different signs cannot be entered for VALUE F LOW
and VALUE F HIGH, if SYMMETRY is the setting selected for the MEASURING MODE
function (4206). In this case, the message “INPUT RANGE EXCEEDED” appears on the
display.
125
100
Freq.
0
➀
➁
Q
m = VALUE f min
n = VALUE f max
A0001279
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Issue/Rev. 0.2 (12/12) MN0M023 • Page 77