4200 Series Transmitters
Instruction Manual
Form 5596
November 2006
15
FEEDTHROUGH
TRANSMITTER
PRINTED WIRING
BOARD
RFI
FILTER
WIRES
FROM
RFI FILTER
RED
ORANGE
BROWN
TB1
TRANSMITTER
COMPARTMENT
PORT
FIELD WIRING
COMPARTMENT
CAP
O-RINGS
POTENTIOMETER
SHAFT
FIELD CIRCUIT PRINTED
WIRING BOARD
TB2
TB1
TB3
GROUNDING
TERMINALS
RFI FILTER
RED
ORANGE
BROWN
TB1
PLUG
TRANSMITTER
PRINTED WIRING
BOARD
GROUNDING
TERMINALS
BARRIER STRIP
(KEY 11)
NOTES:
WIRES CONNECTED TO TB1 ARE SHOWN IN THE COLOR SEQUENCE FOR DIRECT ACTION.
FOR REVERSE ACTION, THE COLOR SEQUENCE IS RED, ORANGE, AND BROWN (FROM LEFT TO RIGHT).
1
END VIEW
CUTAWAY SIDE VIEW
END VIEW
FOR TYPE 4210, 4215, OR 4220 TRANSMITTER WITH POSITION SWITCHES
AND FOR TYPE 4212 OR 4222 POSITION SWITCHES WITHOUT THE TRANSMITTER
FOR TYPE 4211 OR 4221 TRANSMITTER WITHOUT POSITION SWITCHES
C0602
−
4 / IL
Figure 6. Instrument Assembly Details
If the transmitter is calibrated for a specific control
valve actuator travel, perform the procedures in the
Calibration section to fine tune the zero and span
adjustments to the specific application.
Transmitter and Position Switch
Conditions
D
A Type 4210 or 4220 transmitter (with position
switches) obtains stem position from the input
potentiometer and circuit electronics to provide a 4
to 20 milliampere output. The transmitter output
connects to a terminal block mounted in the field
wiring compartment. The high position switch circuit
output controls relay K1 mounted on the field circuit
printed wiring board, and the relay contacts connect
to TB1. The low position switch circuit output
controls relay K2, and the relay contacts connect to
TB2. The relationship between the transmitter
output, relay position switch outputs, and deadband
is shown in figure 7. Deadband is the difference
between trip and reset points of a relay.
D
A Type 4211 or 4221 transmitter (without
position switches) obtains input information from the
potentiometer and provides a 4 to 20 milliampere
output. The transmitter output connects to the barrier
strip (key 11, figure 4) mounted in the field wiring
compartment.
