OPERATING MANUAL HPC & UMC4
Page 65 of 105
14.6.3 Factor programmable density unit
To display another density unity than one of the predefined standard units a factor can be entered for the
conversion of the reading.
F = 0998.0 g/l
The factor always refers to the unity of g/l.
According to the description in section 13.4.3.2 Input window/modify a value, the current value can be
changed.
14.6.4 Density lower-range value
This function allows the operator to define the lower-range value for density measurement in the selected
unit. If density is equal or below this value, the assigned current output will be set to its initial value of
0/4 mA.
After selecting the
Density lower-range value
function, press
„Enter“ to display the following selection
field:
Density 0 % =
XXXXX g/l
The current lower-range value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a
value, the operator can change the lower-range value for density measurement.
14.6.5 Density upper-range value
This function allows the operator to define the upper-range value for density measurement in the selected
unit. For this density, the assigned current output will be set 20 mA. The applied current of the current
output assigned to the density value is linearly interpolated based on the ratio between the measured
value and the difference between lower- and upper-range value.
After selecting the
Density upper-range value
function, press
„Enter“ to display the following selection
field:
Density 100 % =
XXXXX g/l
The current upper-range value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a
value, the operator can change the upper-range value for density measurement.
14.6.6 Density limit MIN
The MIN limiting value for density can be evaluated via the status output and thus triggers an external
alarm. This value is entered as an absolute value in the unit defined using the
Density unit
function.
After selecting the
Density limit MIN
function, press
„Enter“ to display the following selection field:
Density limit
MIN = 0000.0 g/l
The current MIN limiting value will be displayed. As mentioned in Section 13.4.3.2 Input window/modify a
value, the operator can change MIN limiting value for density measurement.
