From a single overhead tank to multiple pumps and valve-controlled tank distribution, the right control sequence starts with the actual water path.
Choose by your pump and tank arrangement
Choose by your water source, pump type, tank layout and required operating sequence. Explore the arrangements below to understand which Sri DIGITEK® controller family fits your installation.
Homes & Independent Villas
For a sump supplying one overhead tank, choose a controller that matches the pump type and motor rating. Automatic level control starts and stops a compatible pump according to tank demand and the selected model’s source-level and protection conditions.
ULDX-01 suits sump monoblock applications with a 30A T-type relay.
ULDX-HA-02 suits sump submersible applications with a 40A power relay, surge protection and extra water storage.
Share the pump label, starter details and sump/overhead-tank arrangement.
One pump can serve an upper solar tank that overflows into a lower storage tank. The dual-tank controller monitors the configured tank levels and operates the compatible pump for that arrangement.
ULDX-HA-02-DT is the dual-tank option for compatible single-phase sump pumps.
For two tanks filling simultaneously through a common delivery pipe, fit a suitable mechanical float valve in each tank.
Share tank heights, overflow routing and the delivery-pipe layout before selection.
Single-phase and three-phase borewell systems need a controller matched to the pump, starter and water-source behaviour. Delivery-loss protection can stop the pump when the configured fault condition is detected; it does not repair a water-source or pump fault.
Compare ULDX-DR-1PH and ULDX-DR-3PH for the applicable pump phase.
Recovery-timer versions run while delivery continues. Delivery loss stops the pump and starts the configured recovery interval, then the system retries until the overhead tank is full.
The default recovery interval is two hours; factory settings can suit the site’s source-recovery requirement.
Buildings with several overhead tanks need control that matches how water reaches each tank. A shared delivery pipe and a valve-controlled distribution system require different arrangements.
For suitable single-phase common-pipe systems, mechanical float valves in each tank control individual filling while the controller automates the pump.
For higher-capacity pumps or high-rise applications, available controllers operate the pump and the individual tank solenoid valves in the configured sequence.
Confirm tank count, pump capacity, pipe routing and the supplied connection diagram.
Two-pump systems can have different purposes: switching between water sources, alternating pumps on each filling cycle, or changing duty after a set running interval. Select by the operating sequence you need.
ULDX-ACH-MSS-03 manages sump + borewell source changeover to a common overhead tank.
ULDX-DR-DM-SQ alternates the selected pumps on each pumping cycle.
Dedicated two- and three-pump timed standby models provide configured duty rotation; confirm phase and starter compatibility.
Some installations need pumping at fixed daily times, a tank signal without a long cable run, or level monitoring without automatic pump switching. Choose the function first, then confirm the compatible system configuration.
Real-time timer models offer four or eight scheduled starts with overhead-tank-full cutoff. Single-phase and three-phase versions and scheduled ON/OFF options are available.
Wireless RF models provide a tank-to-controller signal link; confirm site conditions and the required receiver arrangement.
LVI-01 and ULDX-DLI-10L provide level indication and alarm options; an indicator alone does not automatically switch the pump.
Not sure which arrangement matches your site? Share the pump phase and rating, starter type, number of tanks and a simple water-pipe sketch. Confirm model features and installation compatibility before ordering.