YOKOGAWA DPharp EJX***A Series User Manual

<3. Parameter Setting>
3-26
IM 01C25T01-06EN
3.3.15 Test Output, Simulation, and Squawk
NOTE
Fixed current output, DO Test, and Device
Variable Simulation Function continue for a given
holding time, then is released automatically.
Even if the HART conguration tool power
supply is turned o󰀨 or the communication cable
is disconnected, the test output will continue for
that time.
The holding time can be selected from 10 min*,
30 min, 60 min, 3 hour, 6 hour or 12 hour.
*: Default value.
• Procedure to call up the display
DD [Root Menu] → Diag/Service →
Test Auto Release Time
DTM (excluding
EJX_HART 5
[1.2])
[Root Menu] → Diag/Service →
Test → Test Auto Release Time
EJX_HART 5[1.2]
DTM
Diag and Service → Service
→ Test Auto Release Time
(1) Fixedcurrentoutput
This feature can be used to output a xed current
(or voltage) for loop checks. The available range for
test output depend on the settings for the AO lower
limit and AO upper limit parameters, whose limit
is from 3.6 mA or 0.9 V (-2.5%) to 21.6 mA or 5.4 V
(110%).
Refer to the subsection 3.3.2 about the setting of
AO lower limit and AO upper limit.
While this function works, “TEST” is displayed on
the integral indicator.
 Setting by DD and DTM (EJX HART 5 DTM
basedonFDT1.2)
Call up the test output parameter (Loop test) and
select the output signal.
• Procedure to call up the display
DD and DTM
(excluding EJX_
HART 5[1.2])
[Root Menu] → Diag/Service →
Test (DTM only) → Loop test →
Display Item Contents
4mA (1V*) Output a 4mA (1V*) DC signal
20mA (5V*) Output a 20mA (5V*) DC signal
Other Set a desired output signal value
End Exit
*: For 1 to 5 V output.
 Setting by EJX HART 5 DTM based on
FDT1.2
Call up the test output parameter (Loop test) and
select either manual test or auto test, and set the
current value.
• Procedure to call up the display
EJX HART 5
DTM based on
FDT1.2
Diag and Service → Service
→ Loop test →
Display Item Contents
Manual Test Set the current value or % value at
Test output value, then click the
Start button.
Auto Test Set the interval and rate of change
of current output at Auto Test
Setting, then click the Start button.
(2) DO Test (only for EJX series)
EJX
This function performs the contact output test.
(option code: /AL)
• Procedure to call up the display
DD and DTM
(excluding EJX_
HART 5[1.2])
[Root Menu] → Detailed setup
→Output condition → Process
Alerts → DO cong → DO Test →
EJX_HART 5[1.2]
DTM
Diag and Service → Service → DO
test →
Display Item Contents
O󰀨 Contact output: OFF
On Contact output: ON
Exit Output test is canceled

YOKOGAWA DPharp EJX***A Series Specifications

General

Brand	YOKOGAWA
Model	DPharp EJX***A Series
Category	Transmitter
Language	English