The Uninterruptible Chemical Supply (UCS) system is a flow and level transmitter with advanced monitoring capabilities designed for use primarily with pulsating or intermittently operating chemical metering pumps. The UCS system can provide extremely accurate flow rates even in applications where pumps only operate with a very short pulse (i.e. milliseconds) and may only have one of these single short pulses in a 90 second period.
The UCS utilizes mass measurements on the suction side of the pump from a pressure sensor. There is also a large orifice non-restrictive valve (not a positive displacement meter like gear/spur or similar PD meters) and therefore can operate accurately without any influence from changing viscosities.
The UCS Flow Monitor can have up to 1000:1 turndown within a single configuration but can have unlimited configurations to make it suitable for almost any flow rate or chemical compatibility.
The compact version of the UCS system, UCS-C, does not require any calibration or configuration (other than entering the chemical density which can be done in the factory during testing prior to shipping to eliminate the need for any configuration in the field). Just install the UCS-C between the tote and your pump inlet, power up with 12-24VDC and you are up and running with accurate flow and tank level readings.
Additionally, you can choose to control your pump based on a flow rate set point or a PPM set point based on a process variable. The set point and proportional control can be set up either in your own control system (DCS, SCADA, PLC, etc.) or in the UCS locally where the pump and tank are located, or a combination of the two.
Communication with the UCS can be by 4-20ma, RS485 Modbus or Cellular. This device can be provided for use in a general Zone/Div.2 or Class 1 Zone/Div. 1 area.
This means that operators don’t have to deal with different types/brands of flow and level meters depending on the different chemicals and ranges of flow rates in use around the facility.
UCS systems can be provided from a stand-alone compact UCS-C ready to tie into an existing pump up to fully integrated UCS systems for new or existing pump packages meeting new construction specifications.
The technology is protected under U.S.A. patent No. 7,263,448 and Canadian patent No. 2,501,530.