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3.6.2 Transmitter Variables (Field device variable)
① Click "Setup (S)" from the menu, and select "Field device variable" , then the following window
(Fig. 33) will be displayed.
② Select and enter numeric values for respective items.
Setting item
Unit of instantaneous flow rate (Select from the
right column.)
Flow rate unit
At the change between volumetric flow rate
unit ⇔ mass flow rate unit, total value is reset.
Total flow unit
Unit of total flow (Select from the right column.)
Flow damp
Time constant of flow metering damping
Low cut
Low-cut value of actual flow
Low-cut hysteresis (Select from the right column.)
Low cut hys
A function to provide the low-cut value with 5%
Suppress fluctuation of flow output due to impulse-like noise.
I.F. suppress
factor
Zero point constant (Offset amount)
Calibration
zero
Calibration factor
Calibration
factor
Automatic compensating function to keep the
Auto gain
amplifier gain constant at all times. (Select from
compensation
the right column.)
Flow direction (Select from the right column.)
Flow direction
Fixed conversion factor
Conversion
factor
Detail
hysteresis
Sets the suppression amount of fluctuation with percent
value to the measuring range.
This is a constant value related to the accuracy
of the flowmeter. Do not change.
This is a constant value related to the accuracy
of the flowmeter. Do not change.
Sets "Negative Flow" when the direction of fluid
flow is reversed against the arrow direction (flow
direction) of the sensor.
Used as a parameter similar to density.
Multiplied to actual flow to calculate mass flow.
Fig. 33
E-025-2-E
Setting range
L/s, L/min, L/h, L/d, gal/s,
gal/min, gal/h, gal/d, m
m
/min, m
/h, m
/d, kg/s, kg/min,
3
3
3
kg/h, kg/d, t/s, t/min, t/h, t/d
L, gal, m
, kg, t
3
0.48 to 99.99sec
0.0 to 100.0%
ON, OFF
1 to 100%
More than -1000.0 and less than
1000.0
0.7000 or more and less than
2.0000
ON, OFF
Positive Flow, Negative Flow
0.2 to 5.0
/s,
3
2
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