DVC6000 Digital Valve Controllers
September 2013
7-12
15. For both the DVC6010 and the DVC6015, perform
the appropriate Travel Sensor Adjust procedure in the
Calibration section.
DVC6020 Digital Valve Controller and
DVC6025 Remote Feedback Unit
Refer to figure 8-3 for DVC6020 and 8-8 for DVC6025
key number locations.
1. Insert the travel sensor assembly (key 223) into the
housing. Secure the travel sensor assembly with
screw (key 72).
If assembling a DVC6020 digital valve controller, use
step 2a. If assembling a DVC6025 remote feedback
unit, use step 2b.
2. a. Connect the travel sensor connector to the PWB
as described in Replacing the Module Base.
b. Connect the three travel sensor wires to the
terminals.
Note
For the DVC6025 feedback unit,
connect the potentiometer assembly
(key 223) wires to the terminals as
follows:
red
terminal 1
white
terminal 2
black
terminal 3
3. Loosely assemble the screw (key 80), plain washer
(key 163), and nut (key 81) to the arm assembly
(key 91), if not already installed.
4. Attach the arm assembly (key 91) to the travel
sensor assembly (key 223) shaft.
Two methods are available for adjusting the travel
sensor. You can use a multimeter to measure the
potentiometer resistance, or if you have a Field
Communicator, you can use the procedure in the
Calibration section. To use the multimeter, perform
steps 5 through 17. To use the Field Communicator,
skip to step 18.
Figure 7-7. FIELDVUE DVC6020 digital Valve Controller,
Bias Spring (key 82) Installation
BIAS SPRING
(KEY 82)
ARM ASSEMBLY
(KEY 91)
FEEDBACK
ARM
ASSEMBLY
(KEY 84)
NOTE:
INSTALL BIAS SPRING WITH SMALLER DIAMETER HOOK
CONNECTED TO ARM ASSEMBLY (KEY 91) AND WITH BOTH HOOK
OPENINGS TOWARD CENTER OF BRACKET.
Travel Sensor Adjustment with a Multimeter
5. Connect a multimeter set to a resistance range of
50,000 ohms. Measure the resistance between pins 1
and 3 of the travel sensor connector. Refer to figure
7-6 for pin location. The resistance should be between
40,000 and 50,000 ohms.
6. Multiply the result in step 5 by 0.142 to get a
calculated resistance. The calculated resistance
should be in the range of 5680 to 7100 ohms.
7. Re-range the multimeter to a resistance of 7000
ohms between pins 2 and 3 of the travel sensor
connector. Refer to figure 7-6 for pin location.
8. Hold the arm assembly (key 91) in a fixed position
so that the arm is parallel to the housing back plane
and pointing toward the terminal box. Position the arm
assembly so that the outer surface is flush with the
end of the travel sensor shaft.
9. Adjust the travel sensor shaft to obtain the
calculated resistance determined in step 6,
$
100
ohms.
Note
In the next step, be sure the arm
assembly outer surface remains flush
with the end of the travel sensor shaft.
7
Summary of Contents for Fisher FIELDVUE DVC6000
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