Omega Engineering CN9400 SECOND SETPOINT SP2, S e c o n d S e t p, TO CONFIGURE SP2 AS AN ALARM

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SECOND SETPOINT (SP2)

The second setpoint SP2 can be used to trigger an alarm or as a proportional control output.

TO CONFIGURE SP2 AS AN ALARM

Enter program mode.

dV.hi sets off alarm signal when temperature rises above a pre-set temperature above the setpoint.

dV.Lo sets off alarm signal when temperature falls below a pre-set temperature below the setpoint.

i

Select level 2

SP2.A

bAnd sets off alarm signal when temperature rises above or falls below a pre-set temperature above or below the setpoint.

o

then followed by the required option below:

NONE

S e c o n d S e t p

	Deviation		Deviation	Deviation
	high alarm		low alarm	band alarm
Alarm
state
✱				✱
SP	Y°	SP	Y°	SP	Y°
setpoint		setpoint		setpoint	Y°
		✱		✱
	Y°= SP2
	set value
	Full scale			Full scale
	high alarm			low alarm
	✱
	SP		SP
	setpoint		setpoint

✱

FS.hi sets off alarm signal when the temperature rises above setpoint to a pre-set temperature above scale minimum.

FS.Lo sets off alarm signal when the temperature falls below setpoint to a pre-set temperature above scale minimum.

Select level 1	SET.2
and set the required setpoint value (y°).	0

If the factory set hysteresis 2.0°C/3.6°F is unsuitable:

Index to	BND.2
and adjust the setting.
Check	CYC.2
is set to on.oF (for alarm).

Exit program mode. SP2 is now operational as an alarm.

CooL see heat-cool configuration, page 23.

12 Y° Y°