DetailsLMI Roytronic Excel Series AD Metering Pump. 1 GPH @ 250 PSI, 115 VAC 50/60 Hz, US Plug. (Molded FastPrime Head, Double Ball Check Valves, with 4 Function Discharge Valve accessory) Pulse/Analog Input with Dual Manual Control and Enhanced Controls - Digital Advanced Features - Pulse or 4/20 mA signal input controls frequency, graphical LCD display, manual stroke length control, Frequency manually adjustable when in local control, Pulse multiply/divide functions, 24 V output for remote device, dual low level float switch input, Remote on/off signal input. Outputs include: 4-20 mA, pulse, & Alarm. Remote internal/external mode input. Display configurable to indicate theoretical pump flow.
General Description LMI Roytronic Excel Series AD chemical metering pumps shall be positive displacement, Liquifram type pumps. Relevant models are UL/CUL or CE certified. Output volume shall be adjustable while pumps are in operation from zero to maximum capacity. Pump Controls Series AD9 metering pumps shall have a graphical display to indicate stroke speed of the pump and theoretical flow. Control shall be selectable between internal and external modes as well as stroke frequency adjustment by means of a tactile keypad. Adjustment for stroke length shall be by means of a readily accessible dial knob. The pump shall have the following control modes: Manual, mA, pulse multiply/batch accumulate, pulse divide and timer. Configuration mode settings shall allow for specific pump category settings and adjustments. A pulse indicator light shall flash green between strokes when pumping in internal mode, and yellow between strokes when pumping in external mode. When in external mode, Series AD9 units shall accept 4-20 mA input signal or external pulse signal for control of pump speed. The pump shall be capable to support external connection requirements for remote start/stop or pulse divide/multiply options or output for a power supply for remote powered devices. The pump shall be capable to support external connection capabilities for a digi-pulse or flow meter input or flow meter sensor. The pump shall be capable to support external connection for a remote internal/external input or 4-20 mA output or pacing output or alarm output. The pump shall be equipped with an on/off button and a dual low level float switch input. When the dual low level sensor registers empty, the low level indicator light shall turn yellow when a low level is registered and red when an empty level is registered. The pump shall turn off when it registers an empty level. The pump shall be equipped with a universal voltage supply capability.
Drive Assembly The pump drive shall be totally enclosed with no exposed moving parts. Electronic pulser shall be supplied with quick connect terminals at least 0.110 inch wide (2.79 mm). Electronics shall be housed in a chemical resistant enclosure for maximum protection against chemical spillage. Electrical power consumption shall not exceed 25 watts per hour under full speed and maximum pressure conditions. Pump weight shall not exceed 10 lbs (4.75 kg).
Pressure Relief Models with the LMI 4-Function Valve installed on a FastPrime or AutoPrime Liquid End are recommended to provide automatic pressure relief.
Materials of Construction See Specifications tab. Chemical metering pump housing shall be of chemically resistant glass fiber reinforced thermoplastic. All exposed fasteners shall be stainless steel. Chemical metering pump valves shall be ball type. Valves shall be serviceable by replacing the cartridge valve assembly.
Check Valve, Tubing, Connections A total of 16 ft (4.8 m) of tubing shall be provided per pump complete with compressing connections (on models with tubing connections). A foot valve with integral one piece strainer shall be provided for the suction line (on non-high viscosity models with tubing connections), and an injection check/back pressure valve with 1/2" NPT male connection for the injection point (on models with tubing connections).