IM 01C25T01-01E
3-15
3. OPERATION
3.5.6 Test Output
This feature can be used to output a fixed current for
loop checks. The available range for test output
depends on the settings for the AO lower limit and
AO upper limit parameters, whose limit is from 3.6
mA (-2.5%) to 21.6 mA (110%) .
1
F0325.EPS
Set the control loop in manual
mode, and press OK (F4).
EJX:YOKOGAWA
WARN-loop should be
removed from
automatic control
DEL SET ABORT OK
EJX:YOKOGAWA
Choose analog output
level
1 4mA
2 20mA
3 Other
4 End
DEL SET ABORT ENTER
2
Select Other, and press ENTER
(F4).
Supplementary explanation.
1. 4 mA:
Outputs a 4 mA current signal
2. 20 mA:
Outputs a 20 mA current signal
3. Other:
Sets a desired output using the
alphanumeric keys
4. End: Exits
EJX:YOKOGAWA
Output
12
HELP DEL ABORT ENTER
3
Enter 12, and press ENTER (F4).
A fixed current of 12 mA is output.
EJX:YOKOGAWA
Fld dev output is
fixed at 12.000 mA
DEL ABORT
4
Press OK (F4).
HELP SEND OK
×2
(ENTER)
×3
(ENTER)
(ENTER)
(OK)
(OK)
‘1 2’
(OK)
EJX:YOKOGAWA
Choose analog output
level
1 4mA
2 20mA
3 Other
4 End
DEL ABORT
5
To finish the loop test, select End,
and press ENTER (F4).
HELP SEND ENTER
EJX:YOKOGAWA
NOTE-loop may be
returned to automatic
control
DEL ESC
6
Press OK (F4).
HELP SEND OK
Example: To output 12 mA (50%)
1. Device setup
2. Diag/Service
2. Loop test
CAUTION
Test output continues for approximately 10
minutes, then is released automatically. Even if
the HART communicator power supply is turned
off or the communication cable is disconnected,
test output will continue for approximately 10
minutes.
To Next Page
Loading...
