Jflow controls JFER Series User manual

JFER Modulating type
1. Connect the actuator to the power supply, and input a control signal
to turn the actuator at full open position. After the actuator is in full
opened place, observe whether the valve is in a fully open state. As
shown in the figure below, the valve is not fully open.
2.Turn off the power, turn the open mechanical limit jackscrew
outwards for 1~2 turns (Mechanical limit jackscrew: left open and right
close) as shown in the figure beolw.

3.Turn the actuator in the opening direction (counterclockwise) with
a hex wrench to make the valve in full open position.
4. Loosen the cam fixing nut in the actuator, adjust the yellow cam
counterclockwise to trigger limit switch ( there are two audible
sounds)and keep the red cam stationary (yellow=open), as shown in the
figure below:

5. After adjusting the yellow cam, tighten the cam fixing nut.
6. Turn the mechanical limit jack screw inward until the jacking screw
is jammed, then turn the jack screw outward for one circle, and then
tighten the nut inward to keep the jack screw stationary. As shown
below:

7. Turn on the power for the actuator and input a control signal to
make the valve at full close position. After the actuator is in full
closed place, observe whether the valve is in a fully closed state.
As shown in the figure below, the valve is not fully closed.
8. Turn off the power, turn the close mechanical limit jackscrew
outwards for 1~2 turns (Mechanical limit jackscrew: left open and
right close) as shown in the figure beolw:

9.Turn the actuator in the closing direction (clockwise) with a hex
wrench to make the valve in full close position, as shown in the
figure below:
10.Loosen the cam fixing nut in the actuator, adjust the red cam
clockwise to trigger limit switch ( there are two audible sounds)and
keep the yellow cam stationary (red=close), as shown in the figure
below:

11.After adjusting the red cam, tighten the cam fixing nut.
12.Turn the mechanical limit jack screw inward until the jacking screw
is jammed, then turn the jack screw outward for one circle, and then
tighten the nut inward to keep the jack screw stationary. As shown
below:

13.When the actuator is in the full closed position, pull out the
connector with 5 wires inserted on the module, and use a multimeter
to measure the resistance between the black wire and the red wire.
Pull the potentiometer in the actuator out to separate the two gears,
as shown in the following figure:
Then manually rotate the gear under the potentiometer to let the
multimeter display between 50-70Ω.

14.Insert the connector back into the module, turn on the power for
the actuator, and input a control signal to make the actuator have a
certain opening, that is, let the opening of the actuator be between 20%
and 80%.Then press and hold the black button of the module for about 3
seconds until the digital tube displays "y", then release the button
to enter one-key calibration. As shown below:
After the calibration is completed, input a control signal to make the
valve switch back and forth once, and observe whether the valve is
open and closed in place. If it is not adjusted correctly, use the
above method to adjust again.
After the adjustment is completed, the indicator plate of the actuator is
closed in place and the vertical indicator is as shown in the figure below:

The open position is a horizontal indication as shown in the figure
below:
If the position of the indicator plate is not vertical and
horizontal, use a screwdriver to unscrew the round head Phillips
screw, manually rotate the indicator plate to adjust and then
tighten the screw.
4665 Interstate Dr Cincinnati, OH 45246
Ph 513-731-2900
www.jflowcontrols.com
08/22