9
Replacing the Batteries
Open the housing by removing the top-cap, as outlined below. The top-cap is the
connector between the tube housing the PT2X and the cable. (See figure 7, page 14 for
illustration.)
1. Remove the two set screws at the top of the housing tube, using a 1/16” allen
wrench.
2. Very gently work the top cap loose. Note, two o-rings provide a water-tight seal
for the PT2X housing and often seal tightly. Inserting the blade of a flat screw-
driver between the top-cap and the housing and twisting gently can help to
release the o-rings’ seal. Then rock the top-cap back and forth, while applying
steady, but controlled, upward pressure.
Caution!
Pulling forcefully on the top-cap can cause the O-rings to
release suddenly and the top-cap to disengage with enough force to
pull the insides out of the sensor or snap the connections inside.
Removing the circuit board or pushing on the surface of the pressure
element
may void your warranty
.
3. Remove the black service connector (Figure 5)
4. Tip housing over and gently slide batteries out.
5. Insert new batteries -
positive terminals towards the top-cap
.
6. Replace service connector. Note: this connector is keyed and can only be
connected in one direction.
7. Carefully wrap the cable around the slot in the connector board.
8. Replace top-cap.
9. Replace set screws and tighten with a 1/16” allen wrench.
Figure 5: Removing Service Connector
Service
Connector
