3 basic setup, 1 tag and device information, 2 process variables – Yokogawa EJX930A User Manual
Page 17: 3 measuring range, Basic setup -7 3.3.1, Tag and device information -7, Process variables -7, Measuring range -7
<3. Parameter Setting>
3-7
IM 01C25R05-01EN
3.3 Basic Setup
3.3.1 Tag and Device Information
If there are specified when ordering, the desired Tag
No. and device information are set and shipped.
Tag No. and device information can be checked as
follows.
• Procedure to call up the display
Item
Procedure
Tag
[Root Menu] → Basic setup → Tag
→ Tag
Long Tag
[Root Menu] → Basic setup → Tag
→ Long Tag
Descriptor
[Root Menu] → Basic setup → Device
information → Descriptor
Message
[Root Menu] → Basic setup → Device
information → Message
Date
[Root Menu] → Basic setup → Device
information → Date
When the Tag No. and device information are
changed, input them based on the following
limitations.
Item
Limitations
Tag
Up to 8 characters or numbers*
1
Long tag
Up to 32 characters or numbers*
2
Descriptor
Up to 16 characters or numbers*
1
Message
Up to 32 characters or numbers*
1
Date
mm/dd/yyyy
- mm: month (2 digits)
- dd: days (2 digits)
- yyyy: years (4 digits)
*1: The characters bounded by the thick line in the following
table can be used.
*2: All characters in the following table can be used.
SP
!
"
#
$
%
&
'
(
)
*
+
,
-
.
/
0
1
2
3
4
5
6
7
8
9
:
;
<
=
>
?
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
\
]
^
_
`
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
{
|
}
~
*:
SP shows one-byte space
3.3.2 Process Variables
Process Variables and Status are monitored
by following menus. The status information is
explained in “4. Diagnostics.”
• Procedure to call up the display
Item
Procedure
• Press, SP, ET
• % range of Press, SP, ET
[Root Menu]
Process Variables and
Status
[Root Menu] → Process
variables → Process
variables → Device
Variable and Status
3.3.3 Measuring Range
This section shows how to confirm and change
the parameters for measuring range of differential
pressure, static pressure, and external temperature,
and also unit and damping time constant.
These parameters are set at the factory before
shipment if specified at the time of order.
Follow the procedure below to change them.
About the differential pressure, static pressure and
external temperature, settable range are shown
on the parameters of LSL (Lower settable limit),
USL (Upper settable limit) and Min span (Minimum
span). Set the data within the range.
• Procedure to call up the display
Call up and setting of differential pressure related
parameters
[Root Menu] → Detailed setup → Signal condition →
DP Setup →
→ Pres LRV
Lower range value for differential
pressure
→ Pres URV
Upper range value for differential
pressure
→ Pres Unit
Unit for differential pressure
→ Pres Damp
Damping time constant for differential
pressure
Call up and setting of static pressure related
parameters
[Root Menu] → Detailed setup → Signal condition →
SP Setup →
→ SP LRV
Lower range value for static pressure
→ SP URV
Upper range value for static pressure
→ SP Unit
Unit for static pressure
→ SP Damp
Damping time constant for static
pressure
Call up and setting of external temperature related
parameters
[Root Menu] → Detailed setup → Signal condition →
ET Setup →
→ ET LRV
Lower range value for external
temperature
→ ET URV
Upper range value for external
temperature
→ ET Unit
Unit for external temperature
→ ET Damp
Damping time constant for external
temperature