Instruction Manual
D200124X012
2500 and 2503 Controllers/Transmitters
June 2017
7
W0144-1
W2141-1B
DISPLACER
CAGE
SCREWED
CONNECTION
FLANGED
CONNECTION
DAMPING PLATE
Figure 3. Damping Plate Location
A cageless sensor comes with its displacer separated from the sensor assembly. Displacers longer than 813 mm (32
inches) come in a separate crate. Shorter displacers come in the same crate as the sensor, but are not attached to their
displacer rods. Inspect the displacer to ensure it is not dented. A dent may reduce the pressure rating of the displacer.
If a displacer is dented, replace it.
Controller/Transmitter Orientation
The controller/transmitter attaches to the sensor in one of the mounting positions shown in figure 4. Right‐hand
mounting is with the controller or transmitter case to the right of the displacer when you look at the front of the case;
left‐hand mounting is with the case to the left of the displacer. The mounting position can be changed in the field.
Changing this mounting position changes the control action from direct to reverse, or vice versa.
All caged sensors have a rotatable head. That is, the controller/transmitter may be positioned at any of eight alternate
positions around the cage as indicated by the numbers 1 through 8 in figure 4. To rotate the head, remove the head
flange bolts and nuts and position the head as desired.
