User manual for meter with U/I input PD72S
Figure 7.1
Example of definition of permissible range of input signal -
“Lo r” and “Hi r” parameters (“4-20” mode)
The
“Lo r”
parameter is important if input is set to
“4-20”
,
“1-5”
or
“2-10”
mode
only, and determines lower border of the permissible range. If input is set to
“0-20”
,
“0-5”
or
“0-10”
mode then lower border of the permissible range is always 0.
For example if input is set to
“4-20”
mode, then lower border is calculated due to
expression:
I
min
= 4 mA - 4 mA ×
“Lo r”
%.
The
“Lo r”
value can be set from 0 to 99.9 %.
Parameter
“Hi r”
determines the upper border of the permissible range accordingly to
the expression (for all modes).
For example if input is set to
“4-20”
mode, then upper border is calculated due to
expression:
I
max
= 20 mA + 20 mA ×
“Hi r”
%.
The value of
“Hi r”
can be set from 0 to 19.9 %
In example no 1 of the
DISPLAY VALUES CALCULATION
paragraph the procedure
of the permissible input range determining is presented in details.
If the measurement value do not exceeds
permissible measurement range
but
displayed value exceeds range -999 ÷ 9999, the warning
“-Ov-”
is displayed rather
than the calculated result.
7.3.3.
“bri” parameter
This parameter allows user to set bright of the LED display, bright can be set to
conventional values from 1 to 8.
7.3.4.
“CoL” menu
This menu contains settings related to signalisation via display colour. This kind of signalisation
consist in change of display
colour (from basic colour to “active” colour) in defined situations, for
example after change of R1 state.
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