Issue/Rev. 0.2 (12/12) MN0M023 • Page 95
Device Functions Proline Promass 83 7 Block OUTPUTS
MEASURING MODE
(4246)
! Note!
This function is not available unless STATUS was selected in the OPERATION MODE
function(4200) and the status output was assigned a limit value.
Use this function to define the measuring mode for the status output.
Options:
STANDARD
The status output signal switches at the defined switch points.
SYMMETRY
The status output signal switches at the defined switch points, irrespective of the sign. If
you define a switch point with a positive sign, the status output signal switches as soon as
the value is reached in the negative direction (negative sign), (see illustration).
Factory setting:
STANDARD
Example for the SYMMETRY measuring mode:
Switch-on point Q = 4, Switch-off point Q = 10
m = Status output switched on (conductive)
n = Status output switched off (nonconductive)
A0001247
! Note!
• SYMMETRY cannot be selected unless the values in the ON-VALUE (4242) and OFF-
VALUE (4244) functions have the same sign or one of the values is zero.
• If the values have different signs, SYMMETRY cannot be selected and an
“ASSIGNMENT NOT POSSIBLE” message is displayed.
TIME CONSTANT
(4247)
! Note!
This function is not available unless the STATUS setting was selected in the OPERATION
MODE function (4200).
Use this function to enter a time constant defining how the measuring signal reacts to
severely fluctuating measured variables, either very quickly (enter a low time constant) or
with damping (enter a high time constant). Damping acts on the measuring signal before
the switch status changes, and consequently before switch-on or switch-off delay is
activated. The purpose of damping, therefore, is to prevent the status output changing
state continuously in response to fluctuations in flow.
User input:
Fixed-point number 0.00 to 100.00 s
Factory setting:
0.00 s
Function description
OUTPUTS o PULSE/FREQUENCY OUTPUT (1...2) o CONFIGURATION (STATUS)
0
-4
-10
4
10
Q
t
➀
➀➁➀➁ ➀
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