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WH-CL chlorine analyzer is an on-line water quality monitor with a microprocessor. It is used in drinking water treatment plant, drinking water distribution net, swimming pool, industrial sewage and cooling circulating water to continuously monitor and control the residual chlorine content in water.
It adopts LCD display, intelligent menu operation;
Optional current output mode, free setting of measurement range, high and low exceeding limit alarm and two groups of relay control switches, adjustable hysteresis range;
Automatic or manual temperature compensation;
automatic or manual pH compensation;
various automatic electrode calibration methods;
RS485//RS232 communication and computer connection.
| Measuring range | 0～20.00mg/L（ppm） |
|---|---|
| Resolution | 0.001mg/L |
| Temperature Compensation Range | 0～60℃（base temperature 25℃） |
| Signal output | 0 ~ 10 mA (load resistance < 1.5KΩ ) |
| Power Supply | 220 VAC ± 10% , 50 ± 1 Hz, power ≤3 W; |
| Installation mode | Panel mounted (embedded)/ |
| Ambient temperature | -10～60℃ |
| Relative humidity | Not more than90% |
WH-CL Residual Chlorine Meter is an on-line water quality monitor with a microprocessor. WH-CL Residual Chlorine Meter is used in drinking water treatment plant, industrial sewage to continuously monitor and control the residual chlorine content in water.
Intelligence:
Using single chip microprocessor to measure residual chlorine value, pH value, temperature;
Man-machine dialogue: menu operation structure, operation in accordance with the prompt on the screen;
Multi-parameter display on the same screen: residual chlorine, pH, temperature and working state display at the same time;
Software set output mode: select 0-10mA or 4-20mA output by the software;
Measuring Range, alarm upper and lower limits can be set freely;
Two groups of relay control switches, hysteresis control range adjustable;
Password: the user can set or modify the password, to avoid irrelevant personnel misoperation;
RS485 //RS232 communication interface and computer connection.
Residual Chlorine Meter Working principle:
The instrument consists of signal measurement, calculation, display, network communication and panel instructions. It amplifies the sampled signal into a low-resistance voltage signal through the instrument amplifier and displays the measured value.
Au was used as cathode and Ag as anode. The filling is an electrolyte of 0.1M potassium chloride ( KCl ). A percolating membrane is a membrane capable of selectively permeating only hypochloric acid ( HClO ) molecules, while neither hypochlorite ions ( ClO– ) nor chlorine can penetrate. When the polarization voltage is applied between the anode and cathode, the HClO molecules are consumed at the cathode through the permeation membrane, forming a current which is proportional to the concentration of hypochloric acid. The instrument detects this current and converts it into hypochloric acid concentration through calculation. At the same time, the pH and temperature electrodes detect the pH value and temperature of the solution. The instrument calculates the residual chlorine content in the water based on the detected pH and temperature.
