WXZJ-DO20A Dissolved Oxygen Meter

Measuring Range: Dissolved Oxygen: 0～25.00mg/L; Temperature: 0～60℃;

Measurement Error: Dissolved Oxygen: ±0.2mg/L F?S; Temperature: ±0.5℃

Automatic Temperature Compensation: 0～60℃;

Electrode Residual Signal: <1‰;

Response Time (90% of final value): <60S at 25℃; <30S at 35℃;

Stability: Drift <2% F?S per week under constant temperature and pressure;

Signal Output: 0～10mA (load resistance <1.5KΩ); 4～20mA (load resistance <750Ω);

0～5VDC or 0～10VDC (requires pre-order);

Two sets of relay control contacts: 3A 240VAC, 6A 28VDC or 120VAC;

Power Supply: 220VAC±10%, 50±1Hz, power ≤3W;

The Industrial Dissolved Oxygen Meter (hereinafter referred to as the instrument) is an online water quality monitoring instrument with a microprocessor. It is widely used in industrial water, domestic water, sewage treatment, aquaculture, and other fields for continuous monitoring and control of oxygen content in aqueous solutions.

The instrument features an LCD display; intelligent Chinese menu operation; current or voltage output, freely adjustable measurement range, high and low limit alarm prompts, two sets of relay control switches, adjustable hysteresis range; automatic or manual temperature compensation, and automatic electrode calibration.

The complete measurement system mainly consists of the instrument (secondary meter) and the dissolved oxygen electrode (primary meter). The dissolved oxygen electrode contacts the measured solution, while the instrument displays the oxygen content, temperature, and working status of the aqueous solution.