Send Message
Home ProductsChlorine Analyzer

4 ~ 9pH Chlorine Analyzers

China Suzhou Delfino Environmental Technology Co., Ltd. certification
China Suzhou Delfino Environmental Technology Co., Ltd. certification
I'm Online Chat Now

4 ~ 9pH Chlorine Analyzers

4 ~ 9pH Chlorine Analyzers
4 ~ 9pH Chlorine Analyzers 4 ~ 9pH Chlorine Analyzers 4 ~ 9pH Chlorine Analyzers

Large Image :  4 ~ 9pH Chlorine Analyzers

Product Details:
Place of Origin: China
Brand Name: Daruifuno
Certification: CE
Model Number: ADS2-U3D-CS4
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable

4 ~ 9pH Chlorine Analyzers

Product Name: Residual Chlorine Controller Product Model: ADS2-U3D-CS4
Software Version: DRFN Chlorine Analysis Software V1.0 Display Range: 0.00-200.00mg/L
Protection Grade: IP66 Size: 144*144*120mm
Power Supply: 18~36V DC Weight: 800g
Power Consumption: 10W Mounting Method: Wall Mount, Pipe Clamping, Panel
High Light:

wastewater Chlorine Analyzer


RS485 Residual Chlorine Controller


4 20mA Residual Chlorine Controller


Universal Disinfection Residual Chlorine Controller Used Under 4 ~ 9pH





In the water treatment process, chlorination disinfection is an important part of water quality control in water plants. The DRFN's ADS2-U3D-CS4 residual chlorine controller is a single-parameter instrument, it is connected to the residual chlorine sensor to realize the measurement of the chlorine. 


4 ~ 9pH Chlorine Analyzers 0



Advantages Of The Residual Chlorine Controller


1. A 128*64 black and white graphic dot matrix screen, the display backlight provides constant light and energy-saving mode selection.


2. All the configuration entered by the user is kept indefinitely, even if there is no power, the data will not be lost.


2. Record the user's maintenance details of the equipment, the calibration effect of the diagnostic sensor, and will give corresponding prompts for inaccurate calibration instruments.


3. Two-wire RS485 interface, the communication protocol is MODBUS RTU, support JSON text data format.


4. Menu password can be set to facilitate hierarchical management;


5. The residual chlorine meter has clock and historical data recording functions to meet higher data management requirements.


6. Support a variety of installation methods and can be applied to more different installation environments. The enclosure protection level is IP66.



Parameters Of The Residual Chlorine Controller


Product Name Residual Chlorine Controller
Product Model


Software Version

DRFN Chlorine Analysis software V1.0

Display Range



0.001 mg/L


Better than 0.15% of the measuring range


0.05% of the measuring range every 24 hours, no accumulation


Better than 0.1% of the measuring range

Relay Control

2 settable SPST relays, the max. load 3A/250VAC

Sensor Self-diagnosis

screen image and buzzer prompt

Analog Current Output

2 settable 0/4~20mA active current loop output max. load 1000Ω

Communication Method

MODBUS RTU; support JSON text data format

Display Screen

128*64 LCD

Time History/Data Record

Year/month/day/hour/min/second, record 14000 historical data

Protection Grade


Operating Environment

0~60℃, relative humidity less than 95%

Storage Environment

-20~70℃, relative humidity less than 55%

Shell Material

Enhanced ABS


144*144*120mm (hole size 138*138 mm)

Mounting Method

Wall mounting, pipe clamping, panel installation

Power Supply

18~36V DC




4 ~ 9pH Chlorine Analyzers 1


The Matching Chlorine Sensors Recommendation



  • Model: CS4
  • pH range: 4~9
  • Pressure range: 0~3.0 bar

  • Temperature range: 0~45 ℃
  • Integrated automatic temperature compensation
  • Response time: T90 about 2 min

  • Flow rate: about 30 l/h, low flow-dependence

  • Shaft length: standard 175 mm, and up to 220 mm in length (mA-Version)
  • Connection: for mA-version 2-pole terminal, M12 male

  • Material: PVC-U, PEEK, stainless steel 1.4571, microporous hydrophilic membrane
  • Applications: Fresh water and sea water at 10 µS/cm~50 mS/cm, surfactants are partially tolerated 



Measuring range:




Output signal: Power supply: Item number:
CS4MA2 0.01~2.00 0.01

4~20 mA


12~30 V DC

RL: 50~900Ω



0.01 3426304
CS4MA10 0.01~10.00 0.01 3426305
CS4MA20 0.01~20.00 0.01 3426306
CS4MA200 0.5~200.0 0.1 3426307
CS4MA2-M12 0.01~2.00 0.01

4~20 mA


12~30 V DC

RL: 50~900Ω

CS4MA5-M12 0.01~5.00 0.01 3426314
CS4MA10-M12 0.01~10.00 0.01 3426315
CS4MA20-M12 0.01~20.00 0.01 3426316
CS4MA200-M12 0.5~200.0 0.1 3426307




Contact Details
Suzhou Delfino Environmental Technology Co., Ltd.

Contact Person: Ms. Yuki Fu

Tel: +8615716217387

Send your inquiry directly to us (0 / 3000)