16 Chromalox 1603 User's Manual
1603 Operator Parameters
Push the FUNC pushbutton. The lower display will show
the cue while the upper display will show the value of the
selected parameter. Not all parameters will be displayed
due to specific unit configuration.
Cue Description
SP Setpoint—range set at P1-Sensor Selection. May
be limited by setting low and high limits at P2
and P3 (see configuration parameters).
n.rS Manual reset of latching alarms. Press ▲ to set
ON, then press FUNC to reset the alarm.
nnn Security code for parameter protection.
ON=the controller is in LOCK condition
OFF=the controller is in UNLOCK condition
When it is desired to switch from LOCK to
UNLOCK condition, set a value equal to P11
parameter.
When it is desired to switch from UNLOCK to
LOCK condition, set a value different from P11
parameter.
Cue Description
AL Alarm setpoint—range for a process alarm set
at P1-Sensor Selection and may be limited by
setting low and high limits at P2 and P3
(see Configuration Parameters). Range for a
band alarm 0-500, range for a deviation alarm
-199 to 500.
HSA Alarm hysteresis—deadband range from 0.1 to10.0 %.
Pb Proportional band—range from 1.0 to 99.9 % of
span (P3-P2) for heat or cool control and 1.5 to
99.9% of span (P3-P2) for heat/cool control. When
Pb = 0 the controller performs as an ON/OFF
control and ti, td, C, C2, rC, OLP, OLh and tOL
parameters are skipped.
HS Hysteresis (deadband for ON/OFF control action
(Pb = 0)—range from 0.1 to 10 % of input span
(P3-P2).
ti Integral time—range from 0 minutes and 10
seconds to 20 minutes and 0 seconds (minutes.
seconds); above the upper limit the display
blanks out and the integral action is excluded.
td Derivative time—range from 0.00 to 9.59
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