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OPERATING MANUAL HPC & UMC4
14.6.7 Density limit MAX
The MAX limiting value for density can be evaluated via the status output. This value is entered as an
absolute value in the unit defined using the
Density unit
function.
After selecting the
Density limit MAX
function, press
„Enter“ to display the following selection field:
Density limit
MAX = 0000.0 g/l
The current MAX limiting value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a
value, the operator can change MAX limiting value for density measurement.
14.6.8 Density limit hysteresis
The hysteresis of the density limiting values indicates the absolute density value in the unit defined using
Density unit
function. The measured density must fall below or surpass the set limiting values by the set
hysteresis value in order to activate or deactivate the function.
After selecting the
Density limit hysteresis
function, press
„Enter“ to display the following selection field:
Density limit
Hysteresis 000.0 g/l
The current value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a value, the
operator can change hysteresis value for density measurement.
14.6.9 Density limit for empty pipe
If the measured density or the fixed value f
alls below this limiting value, the message “Empty pipe” will be
displayed, and an alarm will be triggered.
Press
„Enter“ to display the following selection field:
Pipe empty below
0500.0 g/l
The current limiting value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a val-
ue, the operator can change value for density measurement.
14.6.10 Fixed density
If the operator selected the
fixed
option described in Section 14.6.1 Density measurement on/off (on page
64), density measurement will be switched off. The replacement value defined in the following selection
field will be displayed.
Press
„Enter“ to display the following selection field:
Fixed density
0998.1 g/l
The current fixed density will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a val-
ue, the operator can change this value. The density unit can be defined for all settings and displays de-
scribed in Section 14.6.2 Density unit (on page 64).
