NEWPORT iDRA Controller - Manual (Page 42)

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DAMPING FACTOR SUBMENU:
Press d 42) Display flashes the previous “Damping Factor” selection.
Press b 43) Scroll through the available selections: 0000, 0001, 0002,
0003, 0004, 0005, 0006, 0007.
Press d 44) Display flashes STRD stored message and then advances
to ANLG only, if it was changed, otherwise press a to advance
to ANLG Analog Output Menu.
Damping Factor is a measure of speed, overshoot, and undershoot in which the
process variable responds to the output changes of the instrument, which were
used during the Auto Tune. This value is typically set to the ratio of Rate to
Reset. This Default value is (0003). For fast response time, this value should be
decreased while for slow response time it should be increased.
The "DEADBAND" Submenu will only appear if "ON/OFF" was
selected from the "Control Type" Menu.
DEADBAND SUBMENU:
Press d 45) Display flashes 1 st digit of the previous DEAD Deadband
value.
Press b & c 46) Press b and c buttons to enter a new “Deadband” value.
Press d 47) Display shows STRD stored message and then advances to
ANLG only, if it was changed, otherwise press a to advance to
ANLG Analog Output Menu.
Dead Band units are the same as Proportional Band units.
The Dead Band or neutral zone is the number of degrees or counts
(if Input Type is Process) around the set point which the Process Variable
must pass above or below the set point, before the output changes state.