Programmer; Ramp-Soak - CAL Controls 3300 Operating Manual

RAMP-SOAK

This feature enables the controller to ramp up or down from
current temperature to a target setpoint at a pre-
determined rate. It then controls at the target setpoint for
an adjustable soak period before switching off the heat
output.
Ramp rate
Set (0 to 9995 deg/hour)
Press and buttons for 3 seconds to enter program
entry point
TUNE
Press to scroll to
SPRR
Press and hold , then press
value.
Set Soak (if required) 0 to 1440 minutes
Press to scroll to
SOAK
Press and hold , then press
soak period.
Set Ramp On (Off) : On : hold
Press to scroll to
SPRN
Press and hold , then press
or to scroll to required
or to scroll to required
to select On
Deg.
Soak
Target
setpoint
Ramp °/hour
Time
Exit program to enter settings into memory and commence
ramp to target setpoint.
Notes
In Ramp on configuration, if power is removed from the
controller, the Ramp will re-start when power is restored.
The Ramp hold option suspends the ramp at its last value.
If no Soak period has been set, control at target setpoint
continues indefinitely.
SP2 deviation alarms follow the ramp setpoint and can be
used to alarm "out of limits" ramp rate.
WARNING
The Soak timer is triggered when the ramp setpoint reaches
the target setpoint. If the ramp rate is set too fast for the
process, the Soak timer will be triggered before the process
temperature reaches the target setpoint.

PROGRAMMER

Deg.
Ramp °/hour
Target
setpoint
Soak
Time
11