Apparatus and method for controlling or adding material to one or more units

A catalyst delivery system comprising:

• a delivery vessel configured to dispense a metered amount of catalyst to at least one unit;
• a metering device and one or more sensors which provides a metric indicative of the amount of catalyst passing through the metering device from the delivery vessel to the at least one unit;
• at least one dispense mechanism configured to couple the delivery vessel to the at least one unit;
• a mixer comprising a mixing element coupled to the delivery vessel and configured to sufficiently mix the catalyst with an activating agent, wherein the mixer is coupled to the unit;
• a control module having a communication device operable to communicate with a remote device;
• and
• a hazardous location control substation having a specific purpose processor disposed in an explosion-proof enclosure remote from the control module, the hazardous location control substation coupling one or more sensors of the dispense mechanism to the control module, the specific purpose processor operable to convert signals from one or more sensors of the dispense mechanism into a form utilizable by the control module to determine the metric indicative of the dispensed catalyst.