Omega Engineering CN9400 specifications g r a m m e r, Ramp-Soak, Programmer, Set Ramp On

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.

Set Ramp rate (0 to 9995 deg/hour)

Press ▲ and ▼ buttons for 3 seconds to enter

		PROGRAMMER
Deg.		Deg.
Target	Soak
setpoint		Ramp °/hour
	Ramp °/hour	Target
		setpoint
		Soak
	Time	Time

Exit program to enter settings into memory and commence ramp to target setpoint.

P r

program entry point

TUNE

o

	OFF
Press ▲ to scroll to	SPRR
	0
Press and hold ✱, then press ▲ or ▼ to scroll to
required ramp value in the lower display
Set Soak (if required) 0 to 1440 minutes
Press ▲ to scroll to	SOAK
	--

Press and hold ✱, then press ▲ or ▼ to scroll to required soak period in the lower display.

Set Ramp On (Off) : On : hold

Press ▲ to scroll to	SPRN
	OFF
Press and hold ✱, then press ▲ to select On

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.

g r a m m e r

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