KROHNE OPTIMASS with MFC 05x EN - Manual (Page 80)

Installation and Operating Instructions OPTIMASS 79
To set a time constant: e.g. 0.5 sec
Display Key
Line 1 Line 2
From 3.1.(2) Time. Const.
→ (0)0.3 Time. Const.
→ (0).2 Time. Const.
→ 0.(2) Time. Const.
↑ Repeat ↑ key till 5 is reached, then
↵ to accept the value.
The standard range for the time constant is 0.2...20 seconds.
The filtering only applies to mass and volume flow readings and any outputs programmed to these values.
The mass totaliser, volume totaliser, density and temperature measurement outputs are independent of
the programmed time constant.
Flow Mode Fct. 3.1.3
This setting allows the user to select the option of measuring flow in one direction only or in both
directions.
To select the option required:
Display Key
Line 1 Line 2
From 3.1.(3) Flow mode
→ (Flow +/-) default setting
The ↑ key allows the selection of one of the following:
Flow>0 Ignores negative flows
Flow<0 Ignores positive flows
Flow +/- Allows positive and negative flows
When the correct option is in the display the ↵ key may be pressed to accept the option.
Note:
The totaliser will increment AND decrement if flow ± is selected according to the flow direction. Status
options are available to indicate whether a reverse or forward flow is registered.