Yokogawa EJX440A - Manual (Page 40)

<3. Operation>
3-30
IM 01C25T01-01E
F0353.ai
1. Device setup
4. Detailed setup
2. Signal condition
T.Z. Cmp menu
2. Temp Zero
Example: Enter K value obtained from the equation (a).
A value haivng up to 3 decimal places may be
specified.
When h=+3 m, Fill fluid code A, span=15 kPa,
K=−(+3)Ч0.00745ч15Ч100=−0.149
EJX:
Temp Zero
0.000 %/degC
-0.149
ESC ENTER
1
2
(ENTER)
HELP DEL
Enter −0.149 and press ENTER
(F4).
‘ −0.149 ’
EJX:
T.Z. Cmp menu
1 T.Z. Cmp mode On
2 Temp Zero
HELP SEND HOME ENTER
Press SEND (F2) to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
SEND
Note 1: The function is performed using a built-in temperature
sensor in the transmitter body. The temperature
deviation between the transmitter body and capillaries
should be minimized to achieve optimal performance
of the function.
Note 2: When the span changes, reenter the newly obtained
value of K to Temp Zero.
Table A. Constant value [B] of fill fluid
Fill fluid
code
A, C B D E
C
on
st
an
t v
al
ue
[B
]
mmH 2 O 0.76 0.87 1.45 0.75
kgf/cm 2 0.000076 0.000087 0.000145 0.000075
kPa 0.00745 0.00853 0.01422 0.00736
mBar 0.07453 0.08532 0.14220 0.07355
atm 0.000074 0.000084 0.000140 0.000073
inH 2 O 0.02992 0.03425 0.05709 0.02953
psi 0.00108 0.00124 0.00206 0.00167
mmHg 0.05592 0.06401 0.10669 0.05518
Note 3: Select the unit of constant value of [B] from the actual
unit used for the transmitter in operation.