YOKOGAWA DpharpEJX vigilantplant EJX Series, Manual

Page: 27 / 45

IM 01C25T01-01E 3-19
3. OPERATION
6
F0331.EPS
If the reading on the ammeter is
4.000 mA, select
YES and press
ENTER (F4) .
If the reading is not 4.000 mA,
select item 2.
NO . Repeat steps
and until the ammeter reads
4.000 mA.
EJX:YOKOGAWA
Fld dev output 4.000
mA equal to reference
meter?
1 Yes
2 No
HELP SET ABORT ENTER
EJX:YOKOGAWA
Setting fld dev
output to 20mA
DEL SET ABORT OK
7
4
4
5
5
Press OK (F4) , and the transmitter
outputs a 100% output signal.
EJX:YOKOGAWA
Enter meter value
20.000
19.050
HELP DEL ABORT ENTER
8
Carry out the same procedures as
those described under and .
EJX:YOKOGAWA
Fld dev output 20.000
mA equal to reference
meter?
1 Yes
2 No
HELP ABORT
9
Returning fld dev to original
output
appears.
DEL ENTER
(OK)
(ENTER)
(ENTER)
‘1 9.0 5 0‘
EJX:YOKOGAWA
NOTE-Loop may be
returned to automatic
control
HELP ESC
10
Press OK (F4) .
DEL OK
(OK)
(ENTER)
Ammeter reading: 19.050
Ammeter reading: 20.000
Ammeter reading: 4.000
1
F0332.EPS
Select the Scaled D/A trim item.
EJX:YOKOGAWA
Analog output trim
1 D/A trim
2 Scaled D/A trim
3 Clear D/A trim
HELP SET HOME OK
EJX:YOKOGAWA
WARN-Loop should be
removed from
automatic control
DEL SET ABORT OK
2
Press OK (F4) .
EJX:YOKOGAWA
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) .
When item 3. Proceed is selected,
D/A trim must be carried out.
EJX:YOKOGAWA
Set scale- Lo output
value
4.000000
1
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’
EJX:YOKOGAWA
Set scale- Hi output
value
20.000000
5
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) .
EJX:YOKOGAWA
Trim will be scaled
from 1.000 to 5.000
1 Proceed
2 Change
HELP SET ABORT ENTER
EJX:YOKOGAWA
Connect reference
meter
DEL SET ABORT OK
7
Connect the voltmeter, and press
OK (F4) .
EJX:YOKOGAWA
Setting fld dev
output to 4mA
HELP DEL ABORT OK
8
Press OK (F4) . A 0% output signal
is output.
(OK)
(OK)
(ENTER)
1. Device setup
2 Diag/Service
3. Calibration
2. Analog output trim
2. Scaled D/A trim