Operator Parameters | Chromalox 8003

8003 Operator Parameters

Push the FUNC pushbutton. The lower display shows the cue, the upper display shows the value of the selected parameter.

Cue	Description
SP	Control Setpoint, range from "rL" to "rH".

nnnSoftware key for parameter protection set in Conf mode P18.

A1	Alarm 1 Setpoint, range from Conf mode P2 to P3.
A2	Alarm 2 Setpoint, range from Conf mode P2 to P3.
H1	Alarm 1 hysteresis (deadband) 0.1 to 10.0% of
	alarm span.
H2	Alarm 2 hysteresis (deadband) 0.1 to 10.0% of
	alarm span.
Pb	Proportional Band, range from 1.0 to 99.9% of
	span for heating output, 1.5 to 99.9% of span
	for heating/cooling output. If Pb = 0, ON/OFF
	control is enabled and ti, td, C, C2, rC, OLP,
	OLH and IOL are not displayed.
HS	Hysteresis (deadband) for ON/OFF control
	(active if Pb = 0), range 0.1 to 10.0% of span.
ti	Integral time (automatic reset), range 1 minute
	and 20 seconds to 20 minutes and 00 seconds,
	or if blank integral is disabled.

td	Derivative (rate), range 1 second to 9 minutes
	and 59 seconds. If 0, derivative is disabled.

CHeating cycle time, range 1 to 200 seconds (30 seconds or greater recommended for relay outputs).

C2	Cycle Time for Output 2 (heat/cool control
	selected), range 1 to 200 seconds (30 seconds
	or greater recommended for relay outputs).
rC	Relative cooling gain (for heat/cool) control
	range 0.20 to 1.00.
OLP	Overlap/Deadzone (for heat/cool) Positive value
	is amount of overlap; negative value separation
	between heat and cool Pbs, range -20 to 50% of Pb.
rL	SP minimum value (low limit)
rH	SP maximum value (high limit)
rP	Ramp on setpoint changes, range 1 to 100
	degrees/minute or blank (step change).
OLH	Output power max. value, range 0 to 100%
	heating, -100 to 100% heat/cool, limits power
	continuously (tOL = blank) or on startup per
	tOL settings.
tOL	Time interval for OLH power output limit, range
	1 to 100 minutes or if blank infinite. The timer
	starts if the actual temperature is less than P15
	(threshold value).

Chromalox 8003 User's Manual