HM Digital PS-203 Dual Display TDS Controller
Original price was: $344.45.$209.00Current price is: $209.00.
HM Digital PS-203 Dual Display TDS Controller
The HM Digital PS-203 Dual Display TDS Controller provides continuous monitoring and automatic control of Total Dissolved Solids (TDS) on two independent water lines. Ideal for commercial reverse osmosis (RO) and industrial water treatment systems, it simultaneously monitors feed water and product water to improve water quality and system efficiency.
Featuring dual 4-digit LED displays, independent relay outputs, and an adjustable audible alarm, the PS-203 automatically controls pumps, solenoid valves, or other equipment when TDS levels reach user-defined setpoints. The included 1/2″ NPTF sensor probes with Automatic Temperature Compensation (ATC) ensure accurate, reliable measurements for commercial water purification, process water monitoring, and industrial water treatment applications.
Technical Specifications
| Specification | Details |
|---|---|
| Model | HM Digital PS-203 |
| Product Type | Dual Display TDS Controller |
| Monitoring | Two independent water lines |
| TDS Range | 0–9999 ppm |
| Accuracy | ±2% |
| Resolution | 0.1 ppm (0–99.9), 1 ppm (100–9999) |
| Automatic Temperature Compensation | Yes (1–60°C) |
| Calibration | Digital push-button calibration |
| Display | Dual 4-digit bright LED displays |
| Relay Control | Two independent dry-contact relays |
| Relay Rating | 5A, 250 VAC |
| Alarm | User-programmable audible alarm |
| Probe Connection | Two 1/2″ NPTF sensor probes included |
| Probe Cable Length | 3 m (9.8 ft.) |
| Power Supply | 110/230 VAC, 50/60 Hz |
| Dimensions | 3.78 × 3.78 × 4.96 in. (9.6 × 9.6 × 12.6 cm) |
| Applications | Reverse Osmosis (RO), Commercial Water Treatment, Process Water Monitoring, Water Purification Systems, Industrial Water Treatment |
Dependable Dual-Line TDS Monitoring with the HM Digital PS-203
The HM Digital PS-203 Dual Display TDS Controller provides continuous and accurate Total Dissolved Solids (TDS) monitoring for two independent water lines. It helps operators monitor feed water and product water simultaneously to improve water quality and optimize system performance in commercial and industrial water treatment systems.
The PS-203 features dual 4-digit LED displays, independent relay outputs, and user-programmable alarms. It automatically activates pumps, solenoid valves, or other control devices when TDS reaches preset limits. In addition, the included 1/2″ NPTF sensor probes with Automatic Temperature Compensation (ATC) deliver accurate measurements across changing water temperatures.
The controller also offers simple digital calibration, intuitive push-button programming, and durable construction for reliable long-term operation. It is ideal for reverse osmosis (RO) systems, commercial water purification, process water monitoring, and industrial water treatment applications.
HM Digital introduced the PS-203 as the direct replacement for the discontinued PS-202. The upgraded controller adds dual-line monitoring, enhanced control functions, and improved system performance. Available from Water Treatment Supply, the HM Digital PS-203 gives water treatment professionals precise TDS monitoring and dependable automated control.
Specifications and Use Cases of the HM Digital PS-203 Dual Display TDS Controller
The HM Digital PS-203 Dual Display TDS Controller is designed to provide continuous monitoring and automatic control of Total Dissolved Solids (TDS) on two independent water lines. Its dual-display design allows operators to simultaneously monitor feed water and product water, helping improve water quality, system efficiency, and equipment protection.
Featuring Automatic Temperature Compensation (ATC), independent relay outputs, and digital calibration, the PS-203 delivers accurate TDS measurement and reliable control for commercial and industrial water treatment applications. The included 1/2″ NPTF sensor probes and programmable alarms make installation and operation simple while supporting long-term system performance.
Use Cases & Industry Applications:
- Reverse Osmosis (RO) Systems: Simultaneously monitors feed and product water TDS to verify membrane performance and water quality.
- Commercial Water Treatment: Automates TDS monitoring and relay control for purification and filtration systems.
- Industrial Process Water: Provides continuous water quality monitoring to protect equipment and maintain process consistency.
- Water Purification Systems: Controls pumps, solenoid valves, or alarms when TDS reaches user-defined setpoints.
- Municipal & Industrial Water Systems: Supports reliable TDS measurement for water treatment processes and system optimization.
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