Setting of flow rate range
4.8.1.1. Volume flow range (single range)
Description
● The range (full scale) of flow rate to be measured is set.
* The analog output (4-20mA) corresponds to the range setting.
● Settable range: 0.3 to 50 [m/s] in terms of flow velocity in piping
* The piping parameters and FLOW UNIT must be set beforehand.
* If a value beyond the settable range is inputted, "INPUT ERROR" appears and then
last setting is resumed.
* If you change the "piping parameters" or "FLOW UNIT" after setting the range, do over
the range setting again.
<Note> The flow rate unit is as selected by " VOLUME FLOW UNIT " in the "MEASURE
SETUP" mode. (Refer to Section 4.7.2)
● Setting range of the full scale flow rate
<Note> Converted flow rate in the Table 1 is the calculation results obtained
by using the internal diameters of pipes in the left columns.
Perform calculation using the actual internal diameters for accuracy.
Simple formula for flow velocity calculation.
velocity [m/s] ≒ 353.7 ×
velocity [m/s] ≒ 21.22 ×
<Note> When the VOLUME FLOW output is analog, set the VOLUME FLOW based on the analog output source specification (Section
4.8.1.3).
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.4.1.)
Operation
Set the range type to single range and "FULL SCALE1" to flow rate of 60m
(example)
* Set the piping parameters and " VOLUME FLOW UNIT " beforehand.
Key operation
Press the
▼
Press the
ENT
▼
Press the
▼
Press the
ENT
▼
As SINGLE (factory default) has already been registered, proceed to the
next setting.
Press the
▼
As "VELOCITY" (factory default) has already been registered, proceed to
the next setting.
Press the
▼
Press the
ENT
▼
Move the cursor by the
▼
key.
Change the full scale1 to "65".
Note) To change the decimal point position, align the cursor with a place
to change to and press the
4.8. Output Setting
3
flowrate
[
m
/
h
]
2
pipediamet
er
[
mm
]
flowrate
[
l
/
min]
2
pipediamet
er
[
mm
]
Description
key twice to display "OUTPUT SETUP".
key once to display "ZERO ADJUSTMENT".
ENT
key for 4 times to display "RANGE".
key once to display "RANGE TYPE".
ENT
key once to display "KIND".
key once to display "VOLUME FLOW FS1".
key once to display the cursor.
ENT
key, and change the numeric value by the
key likewise.
-39-
3
/h.
Display
OUTPUT SETUP
ZERO ADJUSTMENT
RANGE
RANGE TYPE
KIND
VOLUME FLOW FS1
80.000 m3/h
VOLUME FLOW FS1
00080.000 m3/h
00080.000 m3/h
00060.000 m3/h
00060.000 m3/h
VOLUME FLOW FS1
00065.000 m3/h
CLEAR
SINGLE
VELOCITY