APC AXFA11G user manual Menu G Alarm Setting items, G10 Low Alarm Low alarm setting

6. PARAMETER DESCRIPTION

Parameter setting sequence (for multiple ranges switching via external status input)

F10: SO1 Function	F11: SO2 Function	F12: SI1 Function	F13: SI2 Function
Select a function	Select a function	Select a function	Select a function
F14: SO1/2 Active Mode		F15: SI1/2 Active Mode
Select whether SO1 and SO2 output is to be “Closed (on) Act” or		Select whether SI1 and SI2 input is to be “Short Active”
“Open (off) Act.”		or “Open Active.”
Function Selection		Function Selection
No Function: Output is stopped (*: other functions may be selected)		No Function: No input function (*: other functions may be
Fwd/Rev Ranges: Forward and reverse flow rate measurement		selected)
Ext 2 Answer: Answerback; 2-ranges switching via external status input		Ext 2 Ranges: 2-ranges switching via external status input
Ext 3 Answer: Answerback; 3-ranges switching via external status input		Ext 3 Ranges: 3-ranges switching via external status input
Ext 4 Answer: Answerback; 4-ranges switching via external status input		Ext 4 Ranges: 4-ranges switching via external status input

Refer to Table 6.4.2 and set F10 and F11 or F12 and F13.

B23:Flow Span	F30:Forward
	Span2
Forward No. 1 range	Forward No. 2 range
F33:Reverse	F34:Reverse
Span1	Span2
Reverse No. 1 range	Reverse No. 2 range

F31:Forward

Span3

Forward No. 3 range

F35:Reverse

Span3

Reverse No. 3 range

F32:Forward

Span4

Forward No. 4 range

F36:Reverse

Span4

Reverse No. 4 range

Set the spans for the ranges to be used.

No. 1 range
No. 2 range
No. 3 range
No. 4 range

If “instantaneous flow rate % display (FR)” is selected for the Display Mode and A10: FLOW RATE(%) is selected for BRAIN communication, the instantaneous flow rate % and following symbols will be displayed only for multiple ranges and forward/reverse flow measurement.

Forward No. 1 range : [F1]	Reverse No. 1 range : [R1]
Forward No. 2 range : [F2]	Reverse No. 2 range : [R2]
Forward No. 3 range : [F3]	Reverse No. 3 range : [R3]
Forward No. 4 range : [F4]	Reverse No. 4 range : [R4]

F0609.EPS

[F40: Auto Range Hys] Setting of automatic range- switching hysteresis width

Automatic switching takes place for multiple ranges switching when 100% of the range is exceeded, and this parameter allows a hysteresis width to be set for this switching.

Refer to Figure 6.4.1: Multiple Ranges and Hysteresis Widths.

[F41: Bi Direction Hys] Setting of forward/reverse flow measurement hysteresis width

This parameter sets the hysteresis for forward/reverse flow rate measurement as a % value of the minimum flow span.

Refer to Figure 6.4.1: Multiple Ranges and Hysteresis Widths.

(6) Menu G: Alarm Setting items

(Refer to Section 6.5: Alarm Functions for more details.)

Menu G principally contains setting items relevant to alarms.

[G10: Low Alarm] Low alarm setting

This parameter sets the low limit (L) alarm value, and this is done using a % value of the maximum span.

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

[G11: High Alarm] High alarm setting

This parameter sets the high limit (H) alarm value, and this is done using a % value of the maximum span.

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

[G12: Low Low Alarm] Low-low alarm setting This parameter sets the low-low limit (LL) 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.

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