INSTALLATION
Connecting the #75001 Pool Chemistry Controller ORP and pH Sensors
The ORP and pH sensors are packaged with liquid filled protective caps. To avoid premature failure or damage, it is necessary to ensure that the sensor tips are always kept wet, using normal pool water.
1.Before inserting the sensors, ensure that all hoses are properly connected to the flow cell, manifold, and pump inlet plumbing.
2.Start the pump to fill the flow cell with pool water and check for leaks. Turn the pump off when water starts to flow out of the pH and ORP sensor mounting holes, but leave the valves opened so the water can drain down some.
3.Remove the sensors from the caps, remove the old Teflon tape, and rewrap with new Teflon tape (2 - 3 turns).
4.Thread the sensors into the mounting holes and connect the BNC connectors to the appropriate locations as described below (place the storage caps in the cap holders).
When shipping or storing the sensors, fill the protective caps with normal pool water prior to securing the caps onto the sensors. Tighten the caps and store in a safe location.
The ORP and pH sensors are connected to the #75001 Pool Chemistry Controller electronic processor using BNC connectors. These are designed to install and lock into position. The sensors and connectors are marked for ORP and pH.
#75001 Pool Chemistry Controller
Electronic Processor Box
pH (white ring) ORP (black ring)
• Move the plastic cover to reveal the metal BNC connector.
• Slide the BNC connector onto terminal and twist the lock knob clockwise to lock in place.
• Slide the plastic cover back over the metal BNC connector once installed.
• Or twist the lock knob counterclockwise and slide down to remove.
|
| pH |
|
|
|
|
| ORP | |||||
|
| Sensor |
|
|
|
| Sensor | ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Electrical Connections
Connecting the #75001 Pool Chemistry Controller (Turn off power before making any electrical connections) The #75001 Pool Chemistry Controller is provided with an attached interface cable, similar to a telephone cable, which plugs directly to the base of the #75003 Pool Pilot Digital Control unit, where indicated in the diagram below (#75001 Pool Chemistry Controller Terminal). This allows communication between the Pool Chemistry Control unit and the Digital Control unit.
#75001 Pool Chemistry
Controller Terminal
From #75001 Pool Chemistry Controller
Ground Lug #75008 Auxiliary Relay Terminal
#75003 Digital Control Panel Base Plate
19