- 41 -
(1) Push <DOWN> at PV_END mode and then TR_ZERO mode is displayed.
(2) Push <ENTER>. *R_ZERO mode is started and at this mode users can adjust zero
point of transmitter. Valve stem is moved to zero point automatically.
(3) Push <UP> or <DOWN>. The number on the above on LCD is changed and
measured current value is changed accordingly on ammeter equipped outside. Adjust it to
be 4mA and push <ENTER> to save it. +R_ZERO message is appeared.
(4) Push <ESC>. TR_ZERO mode is displayed.
(5) Push <DOWN> at TR_ZERO mode. Then TR_END mode is displayed.
(Push <ESC> twice to return to RUN Mode.)
(6) Push <ENTER>. *TR_END mode is started and at this mode users can adjust end
point of transmitter. Valve stem is moved to end point automatically.
(7) Adjust measured current value to be 20mA on ammeter with <UP> or <DOWN>.
Push <ENTER> to save it. +R_END message is appeared.
(8) Push <ESC>. TR_END mode is displayed.
(9) Push <ESC> twice at this mode to return to RUN mode.
⇨
⇨
⇨
(1) Push <DOWN>.
(2) Push <ENTER>.
(3) Push <ENTER>
after adjustment
with <UP>,<DOWN>.
⇨
⇨
⇨
⇨
(4) Push <ESC>.
(5) Push <DOWN>.
(6) Push <ENTER>.
⇨
⇨
⇨
⇨
(7) Push <ENTER>
(8) Push <ESC>.
(9) Push <ESC> twice.
after adjustment
with <UP>,<DOWN>.
⇨
RUN
Mode
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Valve mode
This mode is to adjust the various characteristics.
Action type (ACT)
It is set Direct Action (DA) and Reverse Action (RA).
Characteristics (CHAR)
It is set Characteristics. There are three types of valve characteristics, which are Linear
(LIN),
EQ%
(EQ) and
Quick Open
(QO).
The
following
is the
example
of
three
characteristics curves.
The example of three characteristic curves
User Characteristics (USER SET)
When specific characteristic which is not included in above characteristics is needed, it is
available to make specific characteristic curve by choosing 16 points voluntarily according
to field conditions and users' need.
Tight Shut Open (TSHUT OP)
This is to press down valve fully at any value around 20mA current input signal.
Tight Shut Close (TSHUT CL)
This is to close valve completely at setting value around 4mA input signal from outside.
Split Range Control (SPLIT)
This is to control entire stroke by three input signal of 4-20mA, 4-12mA and 12-20mA.
Adjustment of Acting type (ACT)
(1) Push <ENTER> at RUN mode for six seconds and then AUTO CAL mode is
displayed. Push <DOWN> four times to go into VALVE mode.
(2) Push <ENTER> and ACT RA (in case of RA) is displayed.
(3) Push <ENTER> again, then *ACT RA is displayed.
(4) Adjust to *ACT DA with pushing <UP> or <DOWN> and save it with <ENTER>.
+ACT DA message is on.
