APC AXFA11G user manual Parameter setting sequence, for automatic multiple ranges switching

			6. PARAMETER DESCRIPTION
Parameter setting sequence		Output
(for automatic multiple ranges switching)		No. 1 range	No. 2 range No. 3 range	No. 4 range
				100%
F10: SO1 Function	F11: SO2 Function
Select a function	Select a function
F14: SO1/2 Active Mode
Select whether SO1 and SO2 output is to
be “Closed (On) Act” or “Open (Off) Act”
				Input
Function Selection
No Function: Output is stopped (*: other functions may be selected)			10% of No. 3 range
Fwd/Rev Ranges: Forward and reverse flow rate measurement			10% of No. 2 range	(set using F40)
Auto 2 Ranges: Automatic 2-ranges switching
			(set using F40)
Auto 3 Ranges: Automatic 3-ranges switching
		10% of No. 1 range
Auto 4 Ranges: Automatic 4-ranges switching			(set using F40)

Refer to Table 6.4.1 and set F10 or F11.

B23: Flow Span	F30: Forward	F31: Forward
	Span 2	Span 3
Forward No. 1 range	Forward No. 2 range	Forward No. 3 range
F32: Forward	F33: Reverse	F34: Reverse
Span 4	Span 1	Span 2
Forward No. 4 range	Reverse No. 1 range	Reverse No. 2 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
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]
Forward No. 4 range : [F4]
	F0607.EPS

Reverse Forward

Minimum span % within multiple and
forward/reverse (set using F41)	F0608.EPS

Figure 6.4.1 Multiple Ranges and Hysteresis Widths

NOTE

For more details regarding the setting of hyster- esis width, refer to the description of setting

parameter for F40: Auto Range Hys and F41: Bi Direction Hys.

Multiple Ranges Setting 2:

Multiple ranges switching via external status input

￿For both the forward and reverse directions, switch- ing of up to four ranges can be carried out based on status input; however, switching between directions is not possible. Switching between forward and reverse ranges is carried out automatically only when the flow direction reverses.

￿SI1 and SI2 status input terminals are used for multiple range switching. For more details, refer to Table 6.4.2: Multiple Ranges Switching via External Status Input.

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