Fuji Electric Time Delta-C FSV-2, Instruction Manual

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4.13.3. Bi-directional auto 2 range
Description
 The function measures the flow rate of either forward
or reverse flow while changing over the range
corresponding to the flow direction.
 The current output changes with the action range as
illustrated on the right.
 The hysteresis can be set to between 0 and 20% of
either range of FULL SCALE1 or FULL SCALE2 and
FULL SCALE3 or FULL SCALE4 whichever the span
is smaller.

By setting DO1, DO2, DO3, and/or DO4 to "FULL
SCALE2", contact output is activated during "FULL
SCALE2" action.
Select “ACTIVE ON” or “ACTIVE OFF” separately. (See section 4.13.5.)
 Settable range: ±0.3 to 32[m/s] in terms of flow velocity in piping for any of FULL SCALE1 and FULL SCALE2.
When FULL SCALE1 and FULL SCALE2 are set, FULL SCALE3 and FULL SCALE4 are automatically set.
FULL SCALE1 and FULL SCALE3, FULL SCALE2 and FULL SCALE4 are related as follows.
|FULL SCALE1 | = |FULL SCALE3|
|FULL SCALE2| = |FULL SCALE4|
* Preset PIPE PARAMETER and FLOW UNIT.
* If a value beyond the settable range is inputted, "INPUT ERROR" appears and then last setting is resumed.
* If "FLOW UNIT" is changed after setting the range, redo the range setting.
* When FULL SCALE2 is not used (in the case of single range), set FULL SCALE2 to “0”.
<Note> The flow rate unit is as selected by "FLOW UNIT" in “MEASURE SETUP” mode. Before setting range, set the "FLOW UNIT".
(See section 4.11.2.)
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.5.1.)
Operation
(example) Set “BI-DIR AUTO 2” to “RANGE TYPE”, 10[m
3
/h] to “FULL SCALE1”, and 60[m
3
/h] to “FULL SCALE2”.
Set “RANGE HYS.” to 7%.
* Preset “PIPE PARAMETER” and “FLOW UNIT”.
* Below is an example for 1-path/energy measurement and 2-path measurement. Refer to Section 4.8.1 for channel
designation of 2-pipe measurement.
Key operation Description Display
▼
Press the key twice to display “OUTPUT SETUP”.
OUTPUT SETUP
ENT
▼
Press the
ENT
key once to display “ZERO ADJUSTMENT”.
ZERO ADJUSTMENT
SET ZERO
▼
ENT
▼
▼
Press the key for 4 times to display “RANGE”.
Press the
ENT
key once to display “KIND”
Press the key once to display “RANGE TYPE”
RANGE
KIND
FLOW RATE
RANGE TYPE
SINGLE RANGE
ENT
▼
Press the
ENT
key twice to blink the cursor.
RANGE TYPE
SINGLE
▼
Press the key for 3 times, and select “BI-DIR AUTO 2”.
RANGE TYPE
BI-DIR AUTO 2
ENT
▼
Press the
ENT
key once to display “RANGE TYPE”.
RANGE TYPE
BI-DIR AUTO 2
▼
Press the key once to display “FULL SCALE1”.
FULL SCALE1
20.0000 m3/h
ENT
▼
Press the
ENT
key once to blink the cursor on the 2nd line.
FULL SCALE1
0 020.0000 m3/h
▼
Press the key several times to align the cursor to “2”.
FULL SCALE1
00 2 0.0000 m3/h
▼
Press the key several times to set “1”.
Note) To change the decimal point position, align the cursor with a place
to change to, and press the key.
FULL SCALE1
00 1 0.0000 m3/h
Analog o u tp u t
20mA
4mA Flo w v elocity
Hysteresis
Base scale F u ll scale1 F u ll scale2 F u ll scale3 F u ll scale4