APC AXFA11G Output Example, G10 Low Alarm = 30% G11 High Alarm = 80% G12 Low Low Alarm = 20%

[G13: High High Alarm] High-high alarm setting This parameter sets the high-high limit (HH) alarm value, and this is done using a % value of the maxi- mum span.

￿A setting value of 110% indicates that the alarm is disabled.

NOTE

Setting of -110% or 110% results in the corre- sponding function being disabled; accordingly, settings can be combined to implement only high alarms or low alarms, etc.

Output Example 1

The high-high alarm (HH) is set to 90% or more of the flow rate span; the low-low alarm (LL), to 20% or less; the high alarm (H), to 80% or more; and the low alarm (L), to 30% or less.

Settings are:

G10: Low Alarm = 30%

G11: High Alarm = 80%

G12: Low Low Alarm = 20%

G13: High High Alarm = 90%

[%]		High High Alarm
100
90
80
		High Alarm
		Instantaneous flow rate
50
		Low Alarm
30
20
		Low Low Alarm
0		Time (t)
SO1	H	L
SO2	HH	LL
AL	HH	LL

Select “H/L Alarm” forF10: SO1 Function

Select “HH/LL Alarm” forF11: SO2 Function

Select “Closed (On) Act” forF14: SO1/2 Active Mode

Select “Open (Off) Act” forG20: Alm Out Act Mode

Select “Yes” forG33: Alm-HH/LL

F0610.EPS

6. PARAMETER DESCRIPTION

Output Example 2

The high alarm (H) is set to 80% or more of the flow rate span; the low-low alarm (LL), to 20% or less.

Settings are:

G10: Low Alarm = -110%

G11: High Alarm = 80%

G12: Low Low Alarm = 20%

G13: High High Alarm = 110%

[%]
100
80
		High Alarm
	Instantaneous flow rate
50
20
		Low Low Alarm
0		Time (t)
SO1	H
		L Alarm set to
		-110% indicates
		that the alarm is
SO2	LL	disabled.

HHAlarm set to 110% indicates that the alarm is disabled.

AL

LL

Select “H/L Alarm” forF10: SO1 Function

Select “HH/LL Alarm” forF11: SO2 Function

Select “Closed (On) Act” forF14: SO1/2 Active Mode

Select “Open (Off) Act” forG20: Alm Out Act Mode

Select “Yes” forG33: Alm-HH/LL

F0611.EPS

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