4200 Series Transmitters
Instruction Manual
Form 5596
November 2006
8
actuator stem. Replace the stem connector cap
screws with the two cap screws (key 35) furnished
with the stem mounting bracket.
3. If necessary, refer to the appropriate procedures
in the actuator instruction manual to reconnect the
actuator stem to the valve stem.
4. Fasten the stem bracket (key 33) to the stem
mounting bracket (key 34) with two cap screws
(key 37) centered in the slots of the stem bracket.
Tighten the cap screws slightly.
5. On the transmitter, install the pickup pin into the
lever assembly (key 30) in the position to match the
application. Refer to table 3 and figure 15.
6. Temporarily connect the 24 volt dc power supply
to the instrument as indicated in figure 4.
7. Perform the potentiometer alignment procedures
before mounting the transmitter on the actuator. To
simulate mid-stroke position in step 4 of the
procedure, move the lever assembly (key 30) until its
center line is parallel with the center line of the
operating arm (key 25). After completing step 9 of
the potentiometer alignment procedure, remove
the 24 volts dc, and continue the actuator mounting
procedure as described in the following steps.
8. Stroke the actuator to the mid position of the
valve travel.
9. Fit the pickup pin, located in the lever assembly
(key 30), into the horizontal slot in the stem bracket
(key 33). Bolt the mounting plate (key 21) to the
actuator with cap screws, washers, and spacers
(keys 23, 24, and 22) using the two tapped holes in
the side of the actuator yoke.
10. Use the mounting plate slots, which allow the
lever assembly (key 30) and the operating arm
(key 25) to be nearly parallel, and position the long
edge of the mounting plate parallel with the actuator
stem. Tighten the bolts securely.
11. Loosen the two cap screws (key 37) connecting
the stem bracket (key 33) to the stem mounting
bracket (key 34). Manually move the lever assembly
(key 30) until its center line is parallel with the center
line of the operating arm (key 25).
12. Tighten the two cap screws (key 37) in the
slotted holes.
13. Stroke the actuator to ensure that full travel is
allowed.
14. Perform the electrical connection and direct and
reverse action procedures.
15. Verify potentiometer alignment by performing
the potentiometer alignment procedure.
Rotary-Shaft Actuator Mounting,
Type 4210, 4211, 4212, and 4215
Use the following general procedures and figures 19,
20, and 21 to mount the transmitter on rotary-shaft
actuators.
Refer to figure 19 for key number locations for this
example.
1. Install the transmitter on the mounting plate
(key 21) with two cap screws (key 32). The
transmitter can be mounted in any of four positions
on the bracket. Tighten the cap screws slightly.
2. On the actuator, attach the coupler plate
assembly (key 57) and travel indicator to the
actuator shaft. This is accomplished by removing
two self-tapping screws and travel indicator and
replacing them with the self-tapping screws and
coupler plate assembly furnished with the transmitter
for the mounting application.
3. Install the mounting plate (key 21) on the actuator
using the four cap screws and washers (keys 23
and 24). The transmitter and bracket can be
mounted in any of four positions by using the cap
screws (key 23) on the face of the actuator hub.
4. Tighten the cap screws (key 23) slightly while
aligning the potentiometer shaft on the transmitter
with the coupler plate assembly pin (key 57). When
aligned, tighten the four cap screws (key 23).
Maintain this alignment while tightening the two cap
screws (key 32) holding the transmitter to the
mounting plate (key 21).
5. Slide the coupler (key 52) over the potentiometer
shaft and into the hole in the mounting plate
(key 21). Slide the coupling (key 54) onto the plate
assembly pin and attach the coupling to the plate
assembly pin using the set screw.
6. Slide the coupler (key 52) into the coupling
(key 54). The coupling should not be deflected in
any direction when installed. Do not tighten the
coupling set screw (key 53) as it will be tightened
during the potentiometer alignment procedure.
7. Perform the electrical connections and
potentiometer alignment procedures.
Long Stroke Sliding-Stem Type 585C
and 470-16 Actuator Mounting, Type
4220, 4221, and 4222
Use the following general procedures and figure 22
to mount the transmitter on long stroke sliding-stem
Type 585C and 470-16 actuators with 105 to 206
mm (4.125 to 8.125 inches) travel.
