
PROGRAMMING MODULE #1 - SCALE BY SIGNAL LEVEL METHOD
PROGRAM DECIMAL POINT POSITION
Select the desired decimal point position of the scaled display by pressing
either the
“Up”
or
“Down”
button.
Note: Whatever decimal point is selected will appear in succeeding
programming steps. Also, the “P” button must be pressed after each step to
enter the desired data and to proceed to the next step.
“dECPNt” < > “0”
“0.0”
“0.00”
“0.000”
“0.0000”
PROGRAM ROUNDING INCREMENT AND RIGHT HAND
DUMMY ZEROS
Rounding values other than one cause the scaled number to
‘round’
to the
nearest rounding increment selected
(ie. rounding of ‘5’ causes ‘122’ to round to
‘120’ and ‘123’ to round to ‘125’)
. If the process is inherently jittery, the display
value may be rounded to a value higher than one. If the range of the process
exceeds the required resolution,
(ex. 0-3.000 AMPS AC , but only 0.010 AMP AC
resolution required)
, a rounding increment of 10 will effectively make the
display more stable. This programming step is usually used in conjunction with
programmable digital filtering
(Pro 4)
to help stabilize display readings.
(If
display stability appears to be a problem and the sacrifice in display resolution is
unacceptable, program higher levels of digital filtering or increase the level of
process dampening.)
Rounding increments of 10, 20, 50, and 100 may also be
used to add
“dummy zeros”
to the scaled readings, as desired.
“round ”< > “1”
“2”
“5”
“10”
“20”
“50”
“100”
At this stage, a choice of either to return to
“Pro 0”
or to continue with scaling
of the display is offered.
“SCALE” < > “yES”
“NO”
If
“YES”
was selected for the previous step, the scaling procedure is started. In
order to scale the indicator, two signal level values and two display values that
correspond to the signal values must be known. These four values are used to
complete the scaling operation. An example of a signal-display pair is listed
below:
0.00 % @ 0.000 Amps AC AND 100.00 % @ 5.000 Amps AC
Scaling point #1
Scaling point #2
KEY-IN DISPLAY VALUE FOR SCALING POINT #1
“dSP 1” < > “-99999” to “99999”
(ex. 0.00 %)
APPLY SIGNAL TO INDICATOR FOR SCALING POINT #1
The meter will indicate the actual amount of signal being applied to the input.
However, the indicator still retains the previously applied value until
“P”
is
pressed, at which time the new value is stored. Pressing either the
“UP”
or
“DOWN”
button causes the previous value to remain programmed in the unit.
“INP 1” < > “0.000 to 5.000 Amps AC” (ex. 0.000)
KEY-IN DISPLAY VALUE FOR SCALING POINT #2
“dSP 2” < > “-99999” to “99999”
(ex. 100.00 %)
APPLY SIGNAL TO INDICATOR FOR SCALING POINT #2
The meter will indicate the actual amount of signal being applied to the input.
However, the indicator still retains the previous value until
“P”
is pressed, at
which time the new value is stored. Pressing either the
“UP”
or
“DOWN”
button
causes the previous value to remain programmed in the unit.
“INP 2”< > “0.000 to 5.000 Amps AC” (ex. 5.000)
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