<p class="normalPara"><span style="font-size:16px;"><span style="line-height:2;">PH/ORP 3500 series is a kind of popular and cost-effective online pH and ORP controller , with plug-in pH/ORP-1220 sensor, which have good measurement accuracy, anti-interference,easy to install and operation features.</span></span></p>

■ Technical performance

Achieve accurate water quality management with the advanced PH/ORP 3500, designed to provide reliable pH and ORP monitoring in various industrial and research environments. This system features plug-in pH/ORP-1220 sensors that deliver excellent measurement accuracy with strong anti-interference capabilities, covering ranges of 0.00-14.00 for pH and -2000mV to 2000mV for ORP with resolutions of 0.01 and 1mV respectively. The practical PH/ORP 3500 supports both manual and automatic temperature compensation from 0-50°C and offers multiple power options including DC 24V, AC 110V, and AC 220V models to accommodate different facility requirements. Water treatment operators and laboratory technicians appreciate the straightforward panel mounting and easy installation that minimizes setup time while providing consistent, trustworthy readings.

The instrument's design emphasizes user convenience and operational reliability. With its compact 48×96×80mm dimensions and standardized 44×92mm panel cutout, the PH/ORP 3500 integrates seamlessly into existing control systems while providing isolated 4-20mA output and dual relay control contacts for process automation. The quality PH/ORP 3500 maintains stable performance in environments with up to 85% humidity, delivering ±0.1mA output accuracy and ±0.5°C temperature measurement precision. This combination of precision measurement, flexible configuration, and robust construction makes the PH/ORP 3500 particularly valuable for wastewater treatment, aquaculture, chemical processing, and research facilities where dependable pH and ORP monitoring is essential for process control and regulatory compliance.