YOKOGAWA Dpharp vigilantplant EJA Series User Manual page 22

Example 2: To adjust using a voltmeter
1
EJA:
Trim analog output
1 D/A trim
2 Scaled D/A trim
Select the Scaled D/A trim item.
HELP SET HOME OK
2
EJA:
WARN-Loop should be
removed from
automatic control
(OK)
Press OK (F4).
DEL SET ABORT OK
3
EJA:
Trim will be scaled
from 4.000 to 20.000
1 Proceed
2 Change
Select Change, and press ENTER
HELP DEL ABORT ENTER
(F4).
The same operations as for D/A
trim are required when selecting
item 3. Proceed.
4
EJA:
Set scale- Lo output
value
4
4
(ENTER)
HELP DEL ABORT ENTER
Enter the value read on the meter
when the signal is 4 mA. In this
case, Enter the value of the voltage
across a 250
press ENTER (F4).
5
EJA:
Set scale- Hi output
value
20
20
(ENTER)
Enter the value read on the meter
HELP DEL ABORT ENTER
when the signal is 20 mA. Then,
enter 5, and press ENTER (F4).
6
EJA:
Trim will be scaled
from 1.000 to 5.000
1 Proceed
(ENTER)
2 Change
Select Proceed and press ENTER
HELP SET ABORT ENTER
(F4).
7
EJA:
Connect reference
meter
(OK)
Connect the voltmeter, and press
DEL SET ABORT OK
OK (F4).
8
EJA:
Setting fld dev
output to 4mA
(OK)
Press OK (F4). The output signal of
HELP DEL ABORT OK
0% is output.
'1'
resistor (1 V), and
'5'
F0232.EPS
2. HART COMMUNICATOR OPERATION
9
EJA:
Enter meter value
1.000
HELP DEL ABORT ENTER
10
EJA:
Scaled output: 1.000
equal readout
device?
1 Yes
2 No
HELP DEL ABORT ENTER
11
EJA:
Setting fld dev
output to 20mA
HELP SET ABORT OK
12
EJA:
Enter meter value
5.000
HELP DEL ABORT ENTER
13
EJA:
Scaled output: 5.000
equal readout
device?
1 Yes
2 No
HELP DEL ABORT ENTER
"Returning fid dev to
original output"
14
EJA:
NOTE-Loop may be
returned to automatic
control
HELP DEL ABORT OK
2-15
'1 . 0 1'
(ENTER)
Voltmeter reading: 1.010
Enter the reading of the voltmeter
(1.010), and press ENTER (F4).
(The output of the transmitter
changes.)
(ENTER)
Voltmeter reading: 1.000
Because the reading on the
voltmeter is 1.000, select Yes and
press ENTER (F4).
If the reading is not 1.000, select
No. Repeat steps and
8
the voltmeter reads 1.000 V.
(OK)
Press OK (F4). The output signal of
100% is output.
'5 . 2 1'
(ENTER)
Voltmeter reading: 5.210
Enter the reading of the voltmeter
(5.210), and press ENTER (F4).
(ENTER)
Voltmeter reading: 5.000
Select Yes and press ENTER (F4).
(OK)
Press OK (F4).
IM 01C22T01-01E
until
9
F0233.EPS