IM 01C22T01-01E
2-15
2. HART COMMUNICATOR OPERATION
1
F0232.EPS
Select the Scaled D/A trim item.
EJA:
Trim analog output
1 D/A trim
2 Scaled D/A trim
HELP
SET
HOME
OK
EJA:
WARN-Loop should be
removed from
automatic control
DEL
SET
ABORT
OK
2
Press OK (F4).
EJA:
Trim will be scaled
from 4.000 to 20.000
1 Proceed
2 Change
HELP
DEL
ABORT
ENTER
3
Select Change, and press ENTER
(F4).
The same operations as for D/A
trim are required when selecting
item 3. Proceed.
EJA:
Set scale- Lo output
value
4
4
HELP
ABORT
4
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
Ω
resistor (1 V), and
press ENTER (F4).
DEL
ENTER
(OK)
(ENTER)
‘1’
EJA:
Set scale- Hi output
value
20
20
HELP
ABORT
5
Enter the value read on the meter
when the signal is 20 mA. Then,
enter 5, and press ENTER (F4).
DEL
ENTER
(ENTER)
‘5’
Example 2: To adjust using a voltmeter
6
Select Proceed and press ENTER
(F4).
EJA:
Trim will be scaled
from 1.000 to 5.000
1 Proceed
2 Change
HELP
SET
ABORT
ENTER
EJA:
Connect reference
meter
DEL
SET
ABORT
OK
7
Connect the voltmeter, and press
OK (F4).
EJA:
Setting fld dev
output to 4mA
HELP
DEL
ABORT
OK
8
Press OK (F4). The output signal of
0% is output.
(OK)
(OK)
(ENTER)
F0233.EPS
EJA:
Enter meter value
1.000
HELP
ABORT
9
9
8
Enter the reading of the voltmeter
(1.010), and press ENTER (F4).
(The output of the transmitter
changes.)
DEL
ENTER
(ENTER)
(ENTER)
‘1 . 0 1’
EJA:
Scaled output: 1.000
equal readout
device?
1 Yes
2 No
HELP
ABORT
10
DEL
ENTER
Voltmeter reading: 1.010
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 until
the voltmeter reads 1.000 V.
Voltmeter reading: 1.000
11
Press OK (F4). The output signal of
100% is output.
EJA:
Setting fld dev
output to 20mA
HELP
SET
ABORT
OK
EJA:
Enter meter value
5.000
HELP
DEL
ABORT
ENTER
12
EJA:
Scaled output: 5.000
equal readout
device?
1 Yes
2 No
HELP
DEL
ABORT
ENTER
13
EJA:
NOTE-Loop may be
returned to automatic
control
HELP
ABORT
14
Enter the reading of the voltmeter
(5.210), and press ENTER (F4).
DEL
OK
(ENTER)
“Returning fid dev to
original output”
(OK)
(ENTER)
‘5 . 2 1’
(OK)
Voltmeter reading: 5.210
Select Yes and press ENTER (F4).
Press OK (F4).
Voltmeter reading: 5.000
