Controller Board Assembly Replacement
Model 464 Mk3 250 psi
High Quality Groundwater and Surface Water Monitoring Instrumentation
(Page 1 of 2)
Tools and Materials Needed
1. 464 Mk3 250 psi Controller Board Assembly (#113871)
(Includes Circuit Board and LCD)
2. 3/32" Allen Key
3. 3/16" Nut Driver
4. Needle Nose Pliers
Instructions
1. Turn the Pump Control Unit off and remove the batteries.
2. Use the 3/32" Allen key to undo the four hex screws on the sides
of the Control Unit.
Hex
Screws
Hex
Screws
Panel
3. Remove the panel from the Control Unit and flip it over to access
the controller board assembly.
®Solinst is a registered trademark of Solinst Canada Ltd.
Controller Board
Assembly
4. To gain better access to the controller board, disconnect any
tubing that may be in the way. To remove the tubing, push on the
“grasping ring” of the black tubing fitting (to release tubing) and pull
the tubing out.
Remember where the tubing was connected
.
Disconnect Tubing
Solenoid Connector Battery Connector
Solenoid Assembly
5. Pull to remove the battery connector and solenoid connector from
the circuit board.
6. Disconnect tubing as required from the solenoid assembly. Pull to
remove the solenoid assembly from the panel.
Remember how it
was connected.
7. Press the tabs on the label ribbon cable to unlock and pull it from
the circuit board. You may need to use needle nose pliers.
Label Ribbon Cable
464 Mk3 250 psi Controller Board Assembly (#113871)
