Yokogawa EJX440A - Manual (Page 26)

IM 01C25T03-01E 3-18
3. OPERATION
F0342.EPS
Y
X 100% 0%
100%
INPUT OUTPUT
Input pressure in % Characterized value
• Example: Set the number of coodinates on the
line graph to 5.
ESC CLR
SET
T11:NUM OF POINT
5
FEED NO OK
SET
T11:NUM OF POINT
9
5
F0344.EPS
Set 5.
Press the key twice to
enter the setting.
Press the (OK) key.
• Example: Set the first coordinates (X1, Y1) as
(12, 14) in %.
ESC CLR
SET
T23:Y1
10.00%
+ 014.00
CLR ESC
SET
T22:X1
10.00%
+ 012.00
F0345.EPS
PARAM
T21:Y
0.00%
T22:X1
12.00%
T23:Y1
14.00%
PRNT DATA DIAG ESC
Set 12 for X1.
Press the key twice to
enter the setting.
Press the (OK) key.
Set 14 for Y1.
Press the key twice to
enter the setting.
Press the (OK) key.
• Example: Set the signal characterizer ENABLE.
ESC
SET
T10:S.C.ENABLE
ENABLE
FEED NO OK
SET
T10:S.C.ENABLE
INHIBIT
< INHIBIT>
< ENABLE >
F0343.EPS
Use the or key
to select ENABLE.
Press the key twice to
activate the function.
Press the (OK) key.
(18) Process Alarm (G10: P AL MODE, G11: P
HI.AL VAL, G12: P LO.AL.VAL)
The function is used to display the alarm codes when
the input pressure exceeds the specified value within
the calibration range. The same is available for the
input static pressure and the capsule temperature on the
pressure sensor. Refer to table 4.2 Alarm Message
Summary for the specific alarm code to be generated.
• Example: Set alarm mode from OFF to HI.AL
DETECT.
ESC
SET
G10:P AL MODE
HI.AL DETECT
FEED NO ESC
SET
G10:P AL MODE
INHIBIT
< INHIBIT >
< HI.AL DETECT >
< LO.AL DETECT >
< HI/LO.AL DETECT > Use the or key
to select HI. AL DETECT.
Press the key twice to
enter the setting.
Press the (OK) key.
Alarm code is generated when the
output goes beyond the value set
at G11: P HI. AL VAL.
F0346.EPS
• Example: Set the higher alert value of 75 for
alarm generation.
CODE CAPS CLR ESC
SET
G11:P HI.AL VAL
75.0000 kPa
FEED NO OK
SET
G11:P HI.AL VAL
100.000 kPa
+ 75 Set 75.
Press the key twice to
enter the setting.
Press the (OK) key.
Then the alarm code “AL.35 P. HI”
is generated when the input
pressure goes beyond that value.
F0347.EPS
(19) Status Output (option code AL)
This feature is used for a transistor output (open
collector) of an on/off signal according to the status of
high and low alarm limits, which are user-configurable
values as shown in (18) Process Alarm. The status
output can be assigned as any combination of the high
or low limits of the input pressure, input static pres-
sure, or capsule temperature.
CAUTION
Execute DO testing by the parameter "K40 DO
test" whenever turning on the transmitter or
detecting the short interruption in order to check
that the alarm contact output is correctly config-
ured.