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4200 Series Transmitters
Instruction Manual
Form 5596
July 2005
25
Table 8. Jumper Selection
JUMPER*
POSITION
SWITCH
4212
TRANSMITTER WITH SWITCHES AND SINGLE
POTENTIOMETER 4210, 4220
TRANSMITTER WITH SWITCHES AND
DUAL POTENTIOMETER 4215
W1
Not Installed
Installed
Not Installed
W2
Not Installed
Installed
Not Installed
W3
Installed
Not Installed
Installed
* See figure 5 for jumper locations on the printed wiring boards.
NOTES:
1. The three wire cable assembly connected to J3 provides the position switch circuit output to relays K1 and K2 on the field circuit printed wiring board.
2. Terminal block number 1 (TB1) provides the connections for the three wire cable assembly from the potentiometer. On a dual potentiometer system, it provides the transmitter input
only.
3. Connector J2 is only used with a dual potentiometer or for position switches without transmitter circuit. It provides the position switch circuit input to the printed wiring board.
4. The two wire cable assembly connected to J1 is used for the transmitter output signal, (4 to 20 milliamperes), and is connected to the RFI filter.
Transmitter Printed Wiring Board
Refer to figure 11 for component locations.
Removal:
1. Remove power from the transmitter.
2. With the transmitter compartment covers
removed, disconnect the connectors from J1, J2,
and J3 if they are used.
3. Note the locations of the wires, then disconnect
the wires from TB1.
4. Remove the three screws that hold the board in
place.
5. Grasp one of the components that protrudes from
the board, and gently lift the board from the
transmitter compartment.
6. Place the board on an anti-static surface for
repair or replacement.
Replacement:
Note
When replacing connectors J1, J2, and
J3 do not reverse the connector. The
connector can be forced on in the
opposite direction. Reversing any
connector can cause incorrect
operation of the transmitter. Refer to
figure 8, view A, for proper insertion of
the connectors.
1. Check the printed wiring board for correct jumper
configuration. Refer to table 8.
2. When the replacement board is ready, lower the
board into the transmitter compartment.
3. Insert and tighten the three screws.
4. Install the plug connections that were removed.
5. Connect the red and black wires to the printed
wiring board according to the transmitter type.
6. Perform the potentiometer alignment and
calibration procedures.
Field Circuit Printed Wiring Board
Refer to figure 12 for component locations.
Removal:
1. Note the locations of the field wires then
disconnect the wires from TB1, TB2, and TB3 (if
they are all used).
2. Remove the three screws that hold the board in
place.
3. Grasp one of the components that protrudes from
the board and gently lift the board from the field
wiring compartment.
4. Place the board on an anti-static surface for
repair or replacement.
Replacement:
1. When the replacement board is ready, lower the
board into the transmitter compartment.
2. Insert and tighten the three screws and, install
the wiring connections that were removed.
3. The red and black power wires must be
connected to TB3 according to the transmitter type.
Pot/Bushing Assembly Replacement
WARNING
Refer to the Maintenance WARNING at
the beginning of this section.