Red Lion LDA - Manual (Page 7)

7
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100.00
dSP 2
DISPLAY VALUE FOR SCALING POINT 2
-19999 to 99999
Enter the second Display Value by using the front panel buttons. This is the
same for KEY and APLY scaling styles. The decimal point follows the dECPt
selection.
General Notes on Scaling
1. When using the Apply ( APLY ) scaling style, input values for scaling points
must be confined to the range limits shown.
2. The same Input Value should not correspond to more than one Display Value.
(Example: 20 mA can not equal 0 and 20.)
3. For input levels beyond the programmed Input Values, the meter extends the
Display Value by calculating the slope from the two coordinate pairs ( INP1 /
dSP1 & INP2 / dSP2 ).
USER INPUT ASSIGNMENT
Select the value(s) to which the User Input Function is assigned. The User
Input Assignment only applies if a selection of reset, display hold, or print and
reset is selected in the User Input Function menu.
MODE DISPLAY
No Function NO
DESCRIPTION
User Input disabled.
Program Mode Lock-out P-Loc
Zero Input
(Edge triggered)
ZErO
Zero the Input Display value causing
Display Reading to be Offset.
d-SEL
d-LEV
d-HLd
rESEt
Resets the assigned value(s) to the current
input value.
HI-LO HI
dSP LO
See Programming Mode Access chart
(Module 3).
Setpoint 1 and 2 Reset
Setpoint 1 Reset
Setpoint 2 Reset
Print and Reset
Reset both setpoint 1 and 2 outputs.
Resets setpoint 1 output.
Resets setpoint 2 output.
Same as Print Request followed by a
momentary reset of the assigned value(s).
rSt12
rSt-1
rSt-2
P-r5t
Print Request
Serial transmit of the active parameters
selected in the Print Options menu
(Module 5).
Print
USER INPUT FUNCTION
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NO
USrIN
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dSP
U-ASN
Display Select
(Edge Triggered)
Display Intensity Level
(Edge Triggered)
Display Hold
Reset (Edge triggered)
Advance once for each activation.
Increase intensity one level for each
activation.
Holds the assigned display, but all other
meter functions continue as long as
activated (maintained action).
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KEy
StYLE
SCALING STYLE
If Input Values and corresponding Display Values are known, the Key-in
( KEY ) scaling style can be used. This allows scaling without the presence or
changing of the input signal. If Input Values have to be derived from the actual
input signal source or simulator, the Apply ( APLY ) scaling style must be used.
KEy APLY
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0.00
INP 1
INPUT VALUE FOR SCALING POINT 1
For Key-in ( KEY ) style, enter the first Input Value using the front panel buttons.
(The Input Range selection sets the decimal location for the Input Value).
For Apply ( APLY ) style, the meter shows the previously stored Input Value. To
retain this value, press the SEL button to advance to the next parameter. To
change the Input Value, press the RST button and apply the input signal to the
meter. Adjust the signal source externally until the desired Input Value appears.
Press the SEL button to enter the value being displayed.
0 to 29999
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0.00
dSP 1
DISPLAY VALUE FOR SCALING POINT 1
-19999 to 99999
Enter the first Display Value by using the front panel buttons. This is the same
for KEY and APLY scaling styles. The decimal point follows the dECPt selection.
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100.00
INP 2
INPUT VALUE FOR SCALING POINT 2
0 to 29999
For Key-in ( KEY ) style, enter the known second Input Value using the front
panel buttons.
For Apply ( APLY ) style, the meter shows the previously stored Input Value for
Scaling Point 2. To retain this value, press the SEL button to advance to the
next parameter. To change the Input Value, press the RST button and apply the
input signal to the meter. Adjust the signal source externally until the desired
Input Value appears. Press the SEL button to enter the value being displayed.
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LO
U-Act
USER INPUT ACTIVE LEVEL
Select whether the user input is configured as active low or active high.
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1
FILtr
FILTER SETTING
If the displayed value is difficult to read due to small process variations or
noise, increased levels of filtering will help to stabilize the display. Software
filtering effectively combines a fraction of the current input reading with a
fraction of the previous displayed reading to generate the new display.
Filter values represent no filtering (0), up to heavy filtering (3). A value of 1
for the filter uses 1/4 of the new input and 3/4 of the previous display to generate
the new display. A filter value of 2 uses 1/8 new and 7/8 previous. A filter value
of 3 uses 1/16 new and 15/16 previous.
0,1 2 3
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10
bANd
FILTER BAND
The filter will adapt to variations in the input signal. When the variation
exceeds the input filter band value, the filter disengages. When the variation
becomes less than the band value, the filter engages again. This allows for a
stable readout, but permits the display to settle rapidly after a large process
change. The value of the band is in display units, independent of the Display
Decimal Point position. A band setting of ‘0’ keeps the filter permanently
engaged at the filter level selected above.
0 to 199
display units
updated after a Zero Display to show how far the display is offset. A value of
zero removes the effects of offset. The decimal point follows the dECPt selection.
LO HI