Yokogawa EJX440A - Manual (Page 26)

<3. Operation>
3-16
IM 01C25T01-01E
3.5.5 Unit for Displayed Static Pressure
Follow the procedure to change the static pressure
unit.
Changing this parameter also changes the unit for
the static pressure display.
F0326.ai
(ENTER)
EJX:YOKOGAWA
SP Unit
mmH2O
kg/cm2
Pa
kPa
torr
HELP SEND ESC ENTER
Select kPa and Press ENTER
(F4).
1. Device setup
4. Detailed setup
1. Sensors
2. SP sensor
3. SP Unit
Example: Change the static pressure unit from mmH
2
O to
kPa.
EJX:YOKOGAWA
SP sensor
1 SP 0 mmH2O
2 SP % 0.0 %
3 SP Unit kPa
4 A/G Select
5 SP H/L Select High
HELP SEND HOME ENTER
2
1
Press SEND (F2) to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
SEND
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
F0327.ai
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