Dwyer 32DZ - Manual (Page 23)

June, 2000 Page 23 of 40 949-1318
OFF OFF OFF OFF OFF Reset Offset Value is retained in memory when the
process input is not within the Proportional Band.
Art2 Art2 Art2 Art2 Art2 Approach Rate Time: Select OFF OFF OFF OFF OFF , 0.01 0.01 0.01 0.01 0.01 to 99.99 99.99 99.99 99.99 99.99 minutes. The
function defines the amount of Rate applied when the input
is outside of the Proportional Band. The
Art2 time and the
rtE2 time are independent and have no effect on each other.
To increase damping effect and reduce overshoot set the
approach rate time for a value greater than the natural rise
time of the process (natural rise time = process value time
to set point).
Fi 2 Fi 2 Fi 2 Fi 2 Fi 2 Fuzzy Logic Intensity: Select 0 00 00 to 100 100 100 100 100 %. 0 % is OFF
(disables Fuzzy Logic). The function defines the amount of
impact Fuzzy Logic will have on the output. If
Fi 2 Fi 2 Fi 2 Fi 2 Fi 2 is set
to 0 00 00 , Fbd2 Fbd2 Fbd2 Fbd2 Fbd2 and Frt2 Frt2 Frt2 Frt2 Frt2 below will not appear.
Fbd2 Fbd2 Fbd2 Fbd2 Fbd2 Fuzzy Logic Error Band: Select 0 00 00 to 4000 4000 4000 4000 4000 °F, °C, or counts.
Sets the bandwidth of the Fuzzy Logic. Set Fbd2 Fbd2 Fbd2 Fbd2 Fbd2 equal to
PID proportional band ( Pb2 Pb2 Pb2 Pb2 Pb2 ) for best results. Self Tune,
when used, calculates this value automatically. Will not
appear if
Fi 2 Fi 2 Fi 2 Fi 2 Fi 2 is set to 0 00 00 .
Frt2 Frt2 Frt2 Frt2 Frt2 Fuzzy Logic Rate of Change: Select 0.00 0.00 0.00 0.00 0.00 to 99.99 99.99 99.99 99.99 99.99 counts/
second. For best initial setting, find the count/second
change of process value near set point 1 with output ON
(Output is100%). Multiply this value by 3. Set
Frt2 Frt2 Frt2 Frt2 Frt2 to this
calculated value. Self Tune, when used, calculates this
value automatically. Will not appear if
Fi 2 Fi 2 Fi 2 Fi 2 Fi 2 is set to 0 00 00 .
PEA2 PEA2 PEA2 PEA2 PEA2 The Peak feature stores the highest input the control has
measured for Zone 2 since the last reset or Power On. At
Power On,
PEA2 is reset to the present input. To manually
reset the value PEA2 PEA2 PEA2 PEA2 PEA2 must be in the lower display. Press
the ENTER key to reset. PEA2 PEA2 PEA2 PEA2 PEA2 will be reset and display the
present input value.
UAL2 UAL2 UAL2 UAL2 UAL2 The Valley feature stores the lowest input the Instrument
has measured for Zone 2 since the last reset or Power On.
At Power On,
UAL2 UAL2 UAL2 UAL2 UAL2 is reset to the present input. To manually
reset the value UAL2 UAL2 UAL2 UAL2 UAL2 must be in the lower display. Press
the ENTER key. UAL2 UAL2 UAL2 UAL2 UAL2 will be reset and display the present
input value.