Quick Start Guide
D103203X012
DVC2000 Digital Valve Controller
July 2017
24
The factory default characteristic is LINEAR. You can also use a QUICK OPEN, EQUAL %, or CUSTOM function. However,
the custom function is initially configured linear, unless you use a HART based host to reconfigure the custom points.
Custom configuration can be selected, but the curve cannot be modified with the local interface.
Figure 20. Detailed Setup Flow Chart
TUNING
"
"
A
INPUT RANGE
LOW 4 MA
SWITCH1 CLOSED
ABOVE 90%
ZERO CTL SIGNAL
VALVE CLOSED
PRESSURE UNITS
BAR
CHARACTERISTIC
LINEAR
INPUT RANGE
HIGH 20 MA
CLOSED
OPEN
"
"
ABOVE
BELOW
DISABLED
A
TRANSMITTER
4MA CLOSED
125%
...
-25%
TRAVEL = 66.8%
14.6 MA 0.92 BAR
QUICK SETUP
Y
B
Y
B
Y
B
TRAVEL
CALIBRATION
Y
B
DETAILED SETUP
"
A
"
A
"
A
BAR
PSI
KPA
4MA
...
19MA
20MA
...
5MA
QUICK OPEN
LINEAR
EQUAL %
CUSTOM
CLOSED
OPEN
A
SAVE & EXIT?
EXIT W/O SAVIN
SAVE & EXIT?
PRESS
125%
...
-25%
BELOW
ABOVE
DISABLED
SWITCH1
TRIP POINT 90%
SWITCH2
TRIP POINT 10%
SWITCH2 CLOSED
BELOW 10%
Only with Optional Position Transmitter / Limit Switches
Only with Optional Position
Transmitter / Limit Switches
"A
"
A
"
A
"
A
Transmitter—This configures the relationship between the valve travel and the position transmitter output signal. If
you select CLOSED, the transmitter will send 4 mA when the valve is closed. If you select OPEN, the transmitter will
send 4 mA when the valve is open.
A switch is located on the options board to select the transmitter fail signal (high+ or low-). High+ will result in a
current output of > 22.5 mA upon transmitter failure. Low- will result in a current output of < 3.6 mA. Refer to figure
21 for location and switch selection.
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