DRXD-002 residual chlorine analzyer

Dongrun residual chlorine analyzer, with a unique double cleaning technology, can realize 30 days maintenance-free; comes with pH, temperature algorithm compensation, so that the measurement data is more accurate; no need to add chemicals, more economical, more environmentally friendly. According to the disinfection medium, can be adapted to different disinfectants such as residual chlorine, chlorine dioxide, ozone, etc., and can be combined with turbidity and other sensors according to the monitoring requirements.

Widely used in urban or rural water plants, water supply, water supply network, secondary water supply, user peripheral, indoor swimming pool, large water purification equipment and direct drinking water and other water quality online monitoring.

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Three advantages

Double cleaning     30 days free maintenance

  • Turbidity: automatic sewage discharge, automatic flushing
  • Residual chlorine: double cleaning and enhanced cleaning effect (electrochemical cleaning + mechanical cleaning)

-Mechanical cleaning: the rotating impeller is driven by water to polish the platinum working electrode continuously to ensure the smooth surface of the working electrode.

-Electrochemical cleaning: The software controls WE-CE to conduct periodic electrochemical cleaning, by generating bubbles on the surface of the electrode and oxidizing organic insoluble materials on the surface of the electrode.

Three innovative designs to ensure the accuracy of the measurement data

  • Aiming unstable flow rate will cause a large gap in the measurement data

Dongrun countermeasure: adopt the steady flow design to ensure the stable flow rate

  • Aiming bubbles in water affects photorefraction data

Dongrun countermeasure: using steady current defoamizer to remove interference

  • Specific to the environmental changes can affect the measurement data

Dongrun countermeasure: the residual chlorine of constant voltage three electrodes with pH, temperature automatic compensation

More economical, more environmentally friendly

  • Cost saving, without expensive reagents / internal fluids

Constant voltage three-electrode residual chlorine, without film coating, expensive reagent / electrolyte

  • Water saving, only 300ml/min

Series waterways are designed to replace multiple single waterways, with only 300ml of water per minute

  • Convenient installation, small comprehensive space. 1 box body integrated multi-channel sensor, the comprehensive cost performance is better
Temperature
Measurement method platinum resistance temperature sensor method
Measuring range  -10-100℃
Resolution 0.1℃
accuracy ±0.2℃
Response time <30 seconds
MTBF 1440 hours
PH/ORP
Measurement method glass electrode method / platinum electrode method
Measuring range 0.00~14.00pH  -2000 ~ +2000mV
Resolution 0.01 pH/0.1mV
Repeatability 0.03pH
accuracy 0.1pH/5mV
Response time <30 seconds
MTBF 1440 hours
Residual chlorine
Measurement method constant voltage method or polarographic analysis method
Measuring range 0.02 ~ 2 mg/L constant voltage
Resolution 0.01 mg / L
Repeatability 0.5% constant voltage
Response time <60 seconds
MTBF 1440 hours
Other indicators
Power supply AC 220V± 10%, 50Hz
Working environment temperature: (0 ~ 50) ℃
Humidity 95% RH (no condensation)
Communication interface RS485 Modbus RTU protocol
Output interface USB, available for data transfer storage
Installation method wall-mounted installation
Water sample inlet outer diameter 1 / 4, inch pipe
Water sample drain 3 / 8 inch pipe
Dimensions 480 * 360 * 230 (HWD)

 

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