9187SC Chlorine dioxide analyzer

Principle of Operation:

• The electrolyte and permeable membrane separate the electrolytic cell from the water sample. Chlorine dioxide can penetrate the membrane. A fixed potential difference is maintained between the two electrodes of the chlorine dioxide analyzer/measurement instrument, and the generated current is proportional to the chlorine dioxide concentration.

• At the cathode: ClO2+4H++5e-→Cl-+2H2O

• At the anode: Cl-+Ag→AgCl+e-

• The 9187 sc chlorine dioxide analyzer features a selective membrane sensor with a temperature probe for temperature compensation.

Industry Applications:

The 9187 sc chlorine dioxide analyzer is suitable for online monitoring of chlorine dioxide concentration in drinking water and industrial process water disinfection processes.

Instrument Features:

• Wide measuring range

• The 9187 sc chlorine dioxide analyzer uses a selective membrane sensor to measure chlorine dioxide, with a measuring range of 0.010 - 2 ppm (mg/L).

• Temperature compensation

• The sensor of the 9187 sc chlorine dioxide analyzer has a built-in temperature probe for automatic temperature compensation.

• Accurate measurement

• The 9187 sc chlorine dioxide measurement instrument is not subject to interference from chlorine, bromine, hydrogen peroxide, or O3, ensuring accurate measurement.

• Low maintenance

• The 9187 sc chlorine dioxide analyzer is generally calibrated once every two months, and the electrolyte and membrane are replaced every six months.

Technical Specifications

• Measuring range:    0.010 - 2 ppm (mg/L) (Cl2O

• Minimum detection limit:    10 ppb or 0.01 mg/L ClO2

• Accuracy:    5% or± 10 ppb ClO2

• Response time:    90% in less than approximately 90 seconds

• Sample flow rate:    200～250 mL/min

• Storage temperature:    -20～60℃

• Operating temperature:    0～45℃

• Sample temperature:    2～45℃

• Calibration method:    Laboratory comparison method

• Calibration interval:    Once / 2 months

• Maintenance interval:    Generally replace membrane and electrolyte every six months

• Sample inlet connection:    1/4-in. O.D.

• Drain connection:    1/2-in. I.D.

• Protection class:    IP-66/NEMA 4X

• Instrument dimensions:    270 x 250 mm

Ordering Guide

ClO2 Analyzer Panel

LXV434.99.00001    Includes 9187sc ClO2 sensor, panel

Controller

• LXV404.99.00552    sc200 standard controller, dual-channel, digital

• LXV404.99.01552    sc200 controller, dual-channel, digital, MODBUS RS232/485

• For other sc200 ordering options, please refer to the ordering instructions in the sc200 brochure

Accessories

• 09187=A=1000 9187sc sensor

• 09187=A=3500 9187sc selective membrane, 4 pcs

• 09187=A=3600 9187sc electrolyte

Source: Public information from the HACH Water Quality website