Disinfectant Sensors

Membrane-Covered Digital Disinfectant Sensor YG-CM

YG-CM

The membrane-covered digital disinfectant sensor is a three-electrode measuring system with a high-purity gold working electrode and a high-precision potentiostat built into the electrode to hold the working-electrode potential stable. Disinfectant species such as hypochlorous acid undergo redox reactions at the working electrode, and the resulting current follows Faraday's law, which gives the disinfectant concentration.

Typical applications

Treated Water (Plant Outlet)
Distribution Network
Secondary Water Supply
Network Ends
Swimming Pool Water
Medical Wastewater
Total chlorine and other disinfectant scenarios

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Key features

01
Electrochemical sensor
No reagent consumption or pollutant discharge
02
Membrane-covered design
Working electrode is protected from fouling and failure
03
Three-electrode design
Stable zero point and high sensitivity
04
High-precision sampling circuit
Gives the sensor good linearity

Technical Specifications

Disinfectant specifications
Range	0–5 / 20 mg/L
Resolution	0.001 mg/L
Limit of detection	0.030 mg/L or lower
Accuracy	±3% (DPD correlation error ±10% or ±0.05mg/Lwhichever is greater)
Repeatability	±3%
Measurement method	Reagent-free electrochemical three-electrode amperometric system
Calibration method	One- or two-point calibration
Response time (T90)	≤90 s
Temperature specifications
Range	-5 °C~60 °C
Resolution	0.1 °C
Accuracy	±0.4 °C
Repeatability	0.2 °C
Measurement method	Thermistor method
Calibration method	One-point calibration
Response time (T90)	≤25 s
System parameters
Operating voltage	DC 9–28 V
Peak power	0.5 W
Measured parameters	Free chlorine, chlorine dioxide, ozone, total chlorine, trichloroisocyanuric acid, temperature
Digital output	RS485
Analog output	4–20 mA
Operating temperature	-5 °C~45 °C (non-freezing)
Electrode material	Gold + stainless steel + silver chloride
(Note: specifications may change with product improvements; YuanGan reserves the right to modify them.)

Ordering Information

Product Name	Dimensions (W × H × D)	Mounting	Model
Membrane-covered free chlorine sensor	221 mm × Φ32 mm	RBMS	YG-CM/DPM
Membrane-covered chlorine dioxide sensor	221 mm × Φ32 mm	RBMS	YG-CM/11
Membrane-covered ozone sensor	221 mm × Φ32 mm	RBMS	YG-CM/21
Membrane-covered total chlorine sensor	221 mm × Φ32 mm	RBMS	YG-CM/31
Membrane-covered trichloroisocyanuric acid sensor	221 mm × Φ32 mm	RBMS	YG-CM/41
Membrane-covered free chlorine sensor	238 mm × Φ32 mm	Thread G 3/4	YG-CM/02
Membrane-covered chlorine dioxide sensor	238 mm × Φ32 mm	Thread G 3/4	YG-CM/12
Membrane-covered ozone sensor	238 mm × Φ32 mm	Thread G 3/4	YG-CM/22
Membrane-covered total chlorine sensor	238 mm × Φ32 mm	Thread G 3/4	YG-CM/32
Membrane-covered trichloroisocyanuric acid sensor	238 mm × Φ32 mm	Thread G 3/4	YG-CM/42
Membrane-covered free chlorine sensor	222 mm × Φ25 mm	Direct insertion	YG-CN/DPN
Membrane-covered chlorine dioxide sensor	222 mm × Φ25 mm	Direct insertion	YG-CN/11
Membrane-covered ozone sensor	222 mm × Φ25 mm	Direct insertion	YG-CN/21
Membrane-covered total chlorine sensor	222 mm × Φ25 mm	Direct insertion	YG-CN/31
Membrane-covered trichloroisocyanuric acid sensor	222 mm × Φ25 mm	Direct insertion	YG-CN/41