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CD-350 Conductivity meter / TDS meter is widely used in thermal power industry, chemical industry, breeding industry, pharmacy, environmental protection, food and tap water. It is designed for continuous detection of conductivity and TDS in liquid.
CD-350 is an economical on-line conductivity meter that can be switched to TDS mode, and its waterproof rating is IP57.
With temperature compensation function. With on/off relay control function.
The CD-350 can customize the RS485 modbus communication protocol, connect to the Internet, and view data through a mobile phone or computer.
There are 5 kinds of sensors, corresponding to different ranges








support to customize other range,eg.300 mS·cm-1 | ||||||
◇Measuring Range of conductivity | 0.01 electrode 0~20.00μS·cm-1 | 0.1 electrode 0~200.0 μS·cm-1 | ||||
1.0 electrode 0~2000 μS·cm-1 | 10.0 electrode 0~20.00 mS·cm-1 | |||||
◇ Measuring Range of TDS | 0.01 electrode 0~10ppm | 0.1 electrode 0~100ppm | ||||
1.0 electrode 0~1000ppm | 10.0 electrode 0~10000ppm | |||||
◇Resolution | 0.01μS·cm-1, 0.1μS·cm-1,0.001 mS·cm-1,0.01 mS·cm-1 | |||||
◇Precision | 2.0 %(FS) | |||||
◇Temperature compensation function | Automatic temperature compensation function: 0 ~ 100 ℃ temperature compensation: NTC 10 k,Temperature compensation coefficient can be corrected and 25℃ is as standard. | |||||
◇Control interface | Two groups of ON/OFF relay (No source spot), divided into electrical conductivity / TDS and temperature control. | |||||
◇(Optional)Automatic self-cleaning interface | a group of self-cleaning point. Clean time: 0-9999 seconds, interval time: 0-9999 minutes. | |||||
◇Analog output | 4~20mA | |||||
◇Relay | the relay lag value can be set freely. Relay load: 3A 220VAC. | |||||
◇Working Conditions | environmental temperature of 0~60℃, relative humidity ≤90% | |||||
◇Working voltage | 220VAC10%,50/60Hz. | |||||
◇Dimention | 96x96×115 mm | |||||
◇Hole size | 92×92mm | |||||
◇Weight | 0.9Kg | |||||
◇Protection Grade | IP57 | |||||




Product Name: Intelligent Conductivity analyzer | Brand Name: NOBOTECH | ||||
Model Number: CD-350 | Place of Origin: Nanning, China | ||||
Delivery Time: 7 to 15 days after payment | |||||

Nanning Nobo Instrument & Meter Co., Ltd. is a high-tech enterprise integrating design, research and development, production, sales and service. It focuses on independent research and development of intelligent water quality analysis instruments and Internet of Things technologies. cloud service. Products include PH / ORP, conductivity, dissolved oxygen, residual chlorine, ozone, ion concentration, turbidity, salinity, sludge concentration, COD, ammonia nitrogen and other water quality analyzers, water quality digital sensors, DTU, Nobo cloud. The company integrates Nobo artificial intelligence, big data, and cloud technology to build a smart Internet of Things platform to provide customers with multi-parameter water quality monitoring systems, promote smart cities and smart agriculture, and promote industry changes.

The company's new concept of science and technology - "technology changes life", "people-oriented, customer first" as a principle of service, "innovation, professionalism, unity, integrity, dreams" as the company's five core values.

The company has advanced research and development institutions (artificial intelligence laboratory and physical and chemical laboratory), industry-leading SMT production line, advanced production technology, and excellent talent team. The company has passed ISO9001:2015 quality management system certification. The company adopts 5S standardization management as the standardization system of the company. The company exchanges and cooperates with national key laboratories of many famous universities to promote technological development. The company's products are of stable quality, advanced technology and complete functions. They are favored by domestic customers and exported to North America, Europe, Southeast Asia and other overseas places.

With the development of the times and markets, the company has transformed from a traditional water quality analyzer manufacturer into a high-tech enterprise focusing on digital sensors, intelligent water quality analyzers, water quality monitoring systems, artificial intelligence, Internet of Things, and big data services.



Q: How do you guarantee the quality?
A: Firstly, we have our own factory with strong R&D center and QA team which can totally make sure the quality of every single product. Secondly, we have a completed after-sale service .
Q: Is OEM available?
A: Yes, all goods can be customized according to your requirements, including packing, LOGO print, etc.
Q: Can it buy only 1 set of the meter?
A: Yes. No matter how many products you buy, we are grateful all along.
Q: How to deliver the goods for trial order or small order?
A : At customer's request ,we prefer to choose international express, such as DHL, EMS.TNT.Fedex.
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