Measuring principle

R4T12-F07L5-M28 Residual chlorine sensor is a diaphragm-type chlorine-type polarographic (clark) sensor, the cathode, anode, electrolyte and cathode covered by a layer of gas on the permeability of membranes. Measured liquid chlorine spread to the cathode through the membrane, cathode and anode polarization voltage between the appropriate residual chlorine at the cathode will be restored, the measurement of chemical reaction with the chlorine solution is proportional to the current.

Features:

1. A responsive, high accuracy and good stability.
2. Easy to operate, maintain low volume.
3. Applicable to all kinds of media, film is not easily damaged, stain resistance Technical parameters.

Measurements:

HOCl/residual chlorine
Micro-HOCl/of residual chlorine

Range:

0.05~20ppmHOCl(Polarization time : First 30min, The second 10min)
0.01~5ppm(Polarization time : First 90min, The second 45min)
Measured substance : Residual chlorine(pH electrode,used to residual chlorine compensation)
Response time :90%<2min(indoor temperature)95%<5min(indoor temperature)
Temperature range :-measurement 2~45°C
Minimum flow rate : 200~250ml/min, circulation flow cannot be less than 30L/h
PH range : 4~8.2pH
Pressure range : 0~1bar
Temperature compensation : PT1000 or other
Electrode cables : 7M low-noise high-impedance shielded cable
Electrode size : Approximately 20mm diameter, length 70mm
Electrode material : 316L stainless steel shell, POM membrane CAP, PTFE membrane

R4T12-F07L5-M28余氯传感器

[典 型 应 用] 适用于饮用水、工业过程水消毒杀菌工艺的余氯浓度在线监测，也可用于游 泳池等需要测量余氯浓度的场所。
[ 测 量 原 理] R4T12-F07L5-00型余氯电极是一种隔膜式极谱（clark）型传感器，由阴极、阳极、电解液及阴极上覆盖的一层气透性薄膜构成。被测液中余氯通过隔膜扩散至阴极上，阴极与阳极间适当的极化电压可在阴极上将余氯还原，这些化学反应产生与所测量溶液中余氯成正比的电流。

[特 点] – 反应灵敏，准确度高，稳定性好
– 操作简便，维护量小
– 适用于各种介质，膜不易损坏、抗污染
[技 术 参 数]

– 响应时间：90%﹤2min（室温），95%﹤5min（室温）
– 温度范围：测量时2～45℃
– 最小流速：200～250ml/min，流通式流量不能小于30L/h
– pH范围：4～8.2pH
– 耐压范围：0～1bar
– 温度补偿：热敏电阻阻值由用户定制
– 电极电缆：3m高阻抗低噪音屏蔽电缆线
– 电极尺寸：直径20mm，长度70mm
– 电极材质：316L不锈钢壳体，POM膜帽，PTFE膜