YOKOGAWA DpharpEJX vigilantplant EJX Series, User Manual

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IM 01C25T03-01E 3-13
3. OPERATION
20 mA (100% display)
4 mA (–100% display)
Output mode “LINEAR”
LRV HRV
F0328.EPS
20 mA (100% display)
Low Cut
4 mA (–100% display)
Output mode “SQUARE ROOT”
LRV HRV
(14) Range Change while Applying Actual
Inputs (H10: AUTO P LRV, H11: AUTO P
URV)
This feature allows the lower and upper range values to
be set up automatically with the actual input applied. If
the lower and upper range values are set, C21: PRES
LRV and C22: PRES URV are changed at this same
time.
Follow the procedure in the figure below.
The measurement span is determined by the upper and
lower range values. Changing the lower range value
results in the upper range value changing auto-
matically, keeping the span constant.
• Example 1: When changing the lower range
value to 0.5 kPa for the present
setting of 0 to 30 kPa, take the
following action with input pressure
of 0.5 kPa applied.
FEED NO OK
SET
H10:AUTO P LRV
0.5000 kPa
DATA DIAG PRNT ESC
PARAM
H10:AUTO P LRV
0.5000 kPa
H11:AUTO P URV
30.500 kPa
H20:AUTO SP LRV
0.0 MPa
ESC
SET
H10:AUTO P LRV
0 kPa
+ 0
F0329.EPS
The upper range value is changed
keeping the span constant.
Parameters C21 and C22 are
changed at the same time.
Press the key twice.
The lower range value is changed
to 0.5 kPa.
Press the (OK) key.
Note that changing the upper range value does not
cause the lower range value to change but does change
the span.
• Example 2: When the upper range value is to
be changed to 10 kPa with the
present setting of 0 to 30 kPa, take
the following action with an input
pressure of 10 kPa applied.
FEED NO OK
SET
H11:AUTO URV
10.000 kPa
DATA DIAG PRNT ESC
PARAM
H10:AUTO P LRV
0 kPa
H11:AUTO P URV
10.000 kPa
H20:AUTO SP LRV
0.0 MPa
ESC
SET
H11:AUTO P URV
30 kPa
+ 30
The lower range value is not
changed, so the span changes.
Parameter C22 is changed at the
same time.
Press the key twice.
The upper range value is changed
to 10 kPa.
Press the (OK) key.
F0330.EPS