Warrick 3E4A 4 Probe Holder

The Warrick 3E4A is pressure tight (125 psi) housing that can hold four electrodes. The body of the fitting is cast iron and attaches to the vessel via a 2-1/2” NPT male fitting. The 3E3A fitting is intended to be installed in a vertical orientation—mounting in horizontal orientation is not recommended. Four electrodes are included in this assembly; however, the rods are not included. The electrode fitting is used in conjunction with a control relay (sold separately) and electrodes (sold separately) to create a Warrick conductivity-based liquid level controller. Warrick conductivity based liquid level controllers utilizes the electrical conductivity of the liquid to complete the electric circuit. The controller provides the control signal. When the tip of the electrode is not in contact with the liquid, the circuit is open. When the tip electrode becomes submerged, the liquid completes the electrical circuit and the control signal flows through the liquid and returns to the controller through the “ground r...