Emerson Fisher FIELDVUE DVC6000 Instruction Manual page 50

DVC6000 Digital Valve Controllers
6. Connect the third wire of the 3-conductor shielded
cable between between a lead on fixed resistor (R
and terminal #3 of the base unit.
7. Connect the available end-lead on the
potentiometer (R ) with the available lead on fixed
pot
resistor (R ).
2
8. Connect the cable shield or drain wire to the
ground screw in the feedback connections terminal
box of the base unit. Do not connect the shield or
2
drain wire to the two-resistor series.
2-28
9. Replace and tighten the base unit cover.
)
2
Example: Using a linear potentiometer rated at 400
Ohms/inch on an actuator with 16" of travel.
D R
is 400 Ohms/in x 16" = 6.4 kOhm
pot(max)
D R
= 6.4 kOhm x 4.25 = 27.2 kOhm
1
D R
= 6.4 kOhm / 4 = 1.6 kOhm
2
September 2013