Sri DIGITEK® Dual Overhead Tank Water Level Controller
Engineered specifically for single-phase submersible and monoblock pumps managing **two separate overhead tanks (T1 & T2)**[cite: 9]. This advanced heavy-duty system automatically switches ON the pump whenever either overhead tank drops below 50%, and switches OFF only when *both* tanks reach 100% capacity[cite: 9].
⚙️ Key Features & Operating Logic
Smart Dual Tank Switching Logic
Automatically triggers the pump ON when *any* overhead tank falls below 50%, and switches OFF once *both* tanks are fully filled to 100%[cite: 9].
Independent 2-Level Tank Probes
Monitors 50% and 100% level stages independently across both overhead tanks (T1 and T2), paired with a 3-stage underground sump indicator[cite: 9].
Heavy Duty 30 Amps Relay
Equipped with a robust 30A relay capable of handling motors directly without requiring an external magnetic starter[cite: 9].
Advanced Dry-Run Protection
Detects dry running conditions caused by faulty foot valves or pipeline air leaks, shutting down the pump automatically with a fault indication[cite: 9].
Voltage Protection & Surge Defense
Features built-in surge protection and automatic voltage cut-off if supply voltage drops below 180V or exceeds 250V AC[cite: 9].
Manual, NEED & Bypass Switches
Includes Auto/Manual soft switch for utility tasks, an optional NEED switch for forced activation, and a Rocker Bypass Switch for failure overrides[cite: 9].
📋 Technical Specifications
| Model Code | ULDX-HA-02-DT (Heavy Duty Dual Overhead Tank Controller)[cite: 9] |
|---|---|
| Manufacturer | Smart Care Systems |
| Relay Rating | 30 Amps Heavy Duty Relay (Direct connection for motors above 1 HP)[cite: 9] |
| Application Configuration | Single-Phase Submersible/Monoblock Sump Pumps with TWO Overhead Tanks (T1 & T2)[cite: 9] |
| Tank Level Stages | 2 Levels per Overhead Tank (50% & 100%) + 3 Stages for Sump[cite: 9] |
| Working Voltage Cut-Off | Below 180V AC or Above 250V AC[cite: 9] |
| Special Features | Water Flow Indication, Dry-Run Protection, Surge Defense, and Soft-Touch NEED Switch[cite: 9] |
🏡 Ideal Applications
Properties with Two Overhead Tanks
Designed for residential or commercial buildings featuring two separate storage tanks fed by a single common pump[cite: 9].
Single-Phase Submersible & Monoblocks
Directly drives high-capacity motors up to and above 1 HP using an integrated heavy-duty 30A relay[cite: 9].
Multi-Level Apartments
Automates synchronization between a sump and dual roof tanks without requiring manual intervention[cite: 9].