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8.2.8 Span Value (Range)
The following constants are set here.
(1) Range type
(2) Span unit (changeable only for Range 1)
(3) Span value
(4) Hysteresis
Range type
By selecting the range type, the multi-range function can be used in which the range in operation is
switched between the multiple ranges depending on whether the flow rate is value large or small, or
the flow direction is forward or reverse.
If it is not necessary to use the multi-range function, set the Range type to Single range.
RANGE TYPE RANGE TYPE
1:SINGLE
Single range
2:4F-0R
Single direction, 4 ranges Internal automatic switching
3:2F-2R
Forward/reverse direction, 2 ranges Internal automatic switching
4:EXT.2F-0R
Single direction, 2 ranges External signal switching
5:EXT.2F-2R
Forward/reverse direction, 2 ranges External signal switching
6:EXT.4F-0R
Single direction, 4 ranges External signal switching
Note: To use the multi-range function, the following DO and DI are required:
In the case of internal automatic switching ranges
2 ranges, forward/reverse range·························1 Digital Output
3 ranges or more, forward/reverse 2 ranges·······2 Digital Outputs
In the case of external signal switching ranges
2 ranges, forward/reverse range·························1 Digital Inputs
3 ranges or more, forward/reverse 2 ranges·······2 Digital Inputs