pH Meters

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Overview

Duvera, in collaboration with Digital Instruments Corporation, offers a complete range of digital pH meters engineered for accuracy, durability, and process adaptability. These instruments are designed for precise monitoring of acidity and alkalinity in water and wastewater treatment applications, helping maintain system balance, optimize dosing, and ensure consistent water quality.

Key Features

Our pH meters combine advanced microprocessor-based design with high input impedance circuitry to ensure stable and accurate measurements. With ranges from 0.00 to 14.00 pH and resolution up to 0.01 pH, these instruments provide dependable performance across all water treatment conditions. Auto or manual temperature compensation allows precise readings from 0°C to 150°C. All models feature digital calibration, LED or LCD displays, and compact panel or wall-mount designs built from high-quality ABS or IP65-rated housings for long-term reliability. Options such as 4–20 mA DC or RS-485 outputs enable seamless integration with PLC or SCADA systems, supporting automation and data logging.

Applications

pH meters are essential in RO, DM, and ETP/STP systems for chemical dosing and neutralization control. They are used in industrial process water treatment, cooling towers, and boiler feed systems to maintain chemical stability and prevent corrosion or scaling. In food, beverage, and pharmaceutical industries, they ensure compliance with process and quality standards requiring precise pH monitoring.

Specifications

We offer pH meters in multiple models covering laboratory, panel-mount, and wall-mount configurations. The measuring range extends from 0.00 to 14.00 pH with an accuracy of ±0.1 pH and a resolution of 0.01 pH. Temperature measurement spans 0°C to 150°C, with ±0.5°C accuracy and Pt-100 RTD input for automatic or manual temperature compensation. All meters feature three-point auto calibration (7.00, 4.00, and 9.20 pH) and visual error indication for out-of-range or slope deviation. Available outputs include 4–20 mA DC (loop powered), Modbus/RS-485, and relay contacts for high/low set-point control. Power options range from 24 V DC to 230 V AC depending on model, with operating temperature from 0°C to 50°C. Compact panel versions measure approximately 96×96×70 mm, while wall-mount and flameproof models are rated up to IP65 for outdoor or hazardous installations.