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SECTION 16. PROPORTIONAL BAND (P.BND) (Continued)
If A is the controller gain the,
Proportional Band =
Max. out - Min. out
A
CONTROLLER OUT = A* ERROR + OFFSET
To select the proportional band for your proportional controller, follow these steps:
1.
Press the
MENU
button until the meter shows
“P.BND”
.
2.
Press the
/
DEV
button. The meter shows the last previously stored 4- digit number
(0000 through 9999) with flashing 4th digit.
3.
Press the
/
MAX
button to change the value of the flashing digit.
If you continue to press the
/
MAX
button, the flashing digit's value continues to
change.
4.
Press the
/
DEV
button to scroll to the next digit.
5.
Press the
MENU
button to store your selection. The meter momentarily shows
“STRD”
,
followed by
“M.RST”
(Manual Reset).
“P.BND”
displays only if you select analog output as proportional.
SECTION 17. MANUAL RESET (M.RST)
Manual Reset (
M.RST
) is not active unless your meter has analog output capabilities. The menu
will display whether analog output is present or not. This feature allows you to offset the error
that may occur within your setpoint. In order to determine the amount of error, you must compare
your display value to the setpoint 1 value. The difference between these two values is the
amount of error that you may want to enter into Manual Reset (
M.RST
).
1.
Press the
MENU
button until the meter shows
“M.RST”
.
2.
Press the
/
DEV
button. The meter shows last previously stored
4-digit number (-1999 through 9999) with flashing 4th digit.
3.
Press the
/
MAX
button to change the value of the flashing digit.
If you continue to press the
/
MAX
button, the flashing digit's value continues to
change.
4.
Press the
/
DEV
button to scroll to the next digit.
5.
Press the
MENU
button to store your selection. The meter momentarily shows
“STRD”
,
followed also momentarily by
“RST”
(Reset). Then
“CJ.OF”
(Cold Junction Offset) displays
(refer to Section 19).
“M.RST”
displays only if you select analog output as proportional.
Always choose the value of
“M.RST”
less than
“P.BND/2”
.
Meter will not accept larger values and displays with flashing
“ER 4”
.
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Summary of Contents for CN1001-TC
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