Hi, I'm Alex with Kimray. Today we're going to install and calibrate a Valvcon
Electric Actuator with an R2L adapter, on a 2-inch Kimray High Pressure
Control Valve. For this process you will need a 7/16" wrench, a 1/2"
wrench, a 1/16 allen wrench, a 3/16 allen wrench, a termination screwdrive,r and a
loop calibrator. Mount the Valvcon to the R2L with the included bolts remove
the cover with the allen head wrench. As you remove the cover, be careful to keep
it aligned with the base. Many times the manual override comes off with the cover
and the stem can damage the electronics on the back of the board.
Make sure your limit switch is on the smart mode selection. This actuator has
universal power capabilities. For this video we're going to be setting it up
with the 24 volts DC power and controlling it with 4-20mA
analog signal. Terminate 24 volt power to terminals 19 and 20. Connect the 4-20mA
loop calibrator to terminals 15 and 16. If you're using 115 or 230
volt input power, you'll need to terminate the ground wire onto the
grounding lug. We're using an analog signal but it also has Modbus and
discrete signal capabilities. Turn the on/off control mode selector switch all
the way clockwise to the analog setting. Make sure that your position control
switch is on the 4-20mA setting. Now turn your operation mode
selector switch all the way clockwise to the calibrate setting. At this point you
can use the clockwise button in the manual control section to drive your
stem closed. Once the stem from the R2L adapter makes contact with the valve
stem you can install the coupling block.
Remove the rubber clamp and the battery. Use the clockwise and counterclockwise
buttons to drive the valve fully closed and fully open to ensure that none of
the cams are making contact with the limit switches behind the control board.
If the cams are making contact with the limit switches, the switch trip LED light
will appear. Loosen the set screw on the cam and retighten in a spot where the
valve can have full travel without making contact with the limit switches.
Now we're ready to calibrate the potentiometer. Use your clockwise manual
control button to drive the actuator fully closed.
Hold the enter button down for two seconds until the calibrate LED light
starts to blink. Loosen the set screw on the main gear behind the control board
and slowly rotate the main gear clockwise while watching the calibrate
LED light. The LED light will blink faster and faster as you get closer to
calibration point. When the calibration LED is solid, re-tighten the set screw on the
main gear, then push the enter button. Now that your potentiometer is calibrated,
you can replace your battery. Next we'll set your smart limits. Turn your
operation mode selector switch to the zero setting and hold the enter button
down for two seconds until the LED starts blinking. Run your valve to the
fully closed position. Next send a 4mA signal to the actuator from
your loop calibrator. Push the enter button to lock in your fully closed signal.
Now move your operation mode selector switch to the span setting and
hold down the enter button for two seconds until the LED is flashing.
Use the counterclockwise button to manually drive the valve fully open. Send a 20mA
signal to the actuator from your loop calibrator, then push the enter button.
If you want the actuator to have a different fail position than fully
open or fully closed, turn the operation mode switch to MID, hold enter until it
flashes, then set the valve to the desired position and press enter to lock it in.
If control signal to the actuator is lost but external power is still
applied, the signal failed position selector
switch provides options for the actuator – ZERO, SPAN, or LAST, which is the position
the valve was in when the signal was lost. The Valvcon actuator is also
equipped with a backup battery. If power to the actuator is lost, the
power fail control switch provides options for the actuator – clockwise, in
which case the valve will drive fully closed; counterclockwise, in which case
the valve will drive fully open; or MID, in which case the valve will drive
between open and closed depending on what your mid position has been set to.
Before you replace the cover, first take the manual override stem out
and put it on the Valvcon. Then attach the cover, keeping it aligned with the
base to prevent any damage to the back of the board. Thanks for watching. If you
have any further questions contact your local Kimray store or authorized distributor.