Original E+H Cls21d Digital Conductivity Sensor - Best Price

• Customization: Available
• Place of Origin: Germany
• Customized Support: OEM, ODM
• Model NO.: E+H CLS21D
• Material: PVC
• Warranty: 1year
• Model: Cls21d
• Process Connection and: 1e = Thread G 1, Pes
• Temperature: -20 to 100 °C (-4 to 212 °F)
• Conductivity Response Time: T95 = 3 S
• Repeatability: 0.2 % of The Measured Value
• Storage Temperature: -25 to +80 °C (-10 to +180 °F)
• Ambient Temperature: -20 to +60 °C (-4 to +140 °F)
• Temperature Response Time: T90 = 296 S
• Temperature Compensation: Ntc
• Approval : G = ATEX/Nepsi II: 1g Ex Ia Iic T3/T4/T6 Ga, Iecex Ex Ia Iic T6 Ga
• Measuring Range and Cell Constant: C = Measuring Range: 10.0 S to 20 Ms/Cm (K = 1)
• Transport Package: Original and New
• Specification: 20X10X10 cm
• Trademark: E+H
• Origin: Germany
• HS Code: 9030899090
• Production Capacity: 1000 Piece/Year
• Package Size: 20.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

E+H CLS21D

In the realm of industrial measurement and control, accurate and reliable conductivity sensing is of utmost importance. The E+H CLS21D, a digital conductivity sensor developed by Endress+Hauser, has emerged as a leading solution in this field. This sensor is designed to meet the diverse needs of various industries, offering high - precision measurements, excellent stability, and advanced features.
Conductivity is a measure of a substance's ability to conduct an electric current. In an aqueous solution, for example, the presence of ions allows the flow of electricity. The E+H CLS21D employs a conductive conductivity cell with graphite electrodes to measure conductivity. When an electric potential is applied across the electrodes, the ions in the solution migrate, generating an electric current. The magnitude of this current is proportional to the conductivity of the solution.
The choice of graphite electrodes in the CLS21D is strategic. Graphite is highly chemically stable, which means it can withstand a wide range of chemical environments without being corroded. This is crucial in industrial applications where the sensor may come into contact with aggressive chemicals. Additionally, graphite has good electrical conductivity, ensuring accurate measurement of the current generated by ion migration in the solution.

 1.Technical Specifications

1.1 Measuring Range
The CLS21D is designed to measure conductivity in the range of k=1:10 μS/cm to 20 mS/cm. This wide range makes it suitable for a variety of applications, from measuring the conductivity of relatively pure water (where conductivity is low) to more concentrated solutions or industrial processes with higher conductivity levels.
1.2 Process Temperature
The sensor can operate within a process temperature range of−20°C to 135°C at an absolute pressure of 3.5 bar (−4° F to 275° F at 50 psi). This high - temperature tolerance allows it to be used in applications where the process fluid is either very cold or hot, such as in certain chemical reactions or in heating and cooling systems.
1.3 Process Pressure
It can withstand a process pressure of up to 17 bar absolute at 20°C (246 psi at 64° F). This robust pressure resistance ensures that the sensor can be used in high - pressure pipelines or vessels without being damaged, making it suitable for applications in the oil and gas, chemical, and power generation industries.
1.4 Sensor Shaft and Electrode Materials
The sensor shaft is made of PES (Polyethersulfone), which is a high - performance thermoplastic. PES offers excellent mechanical strength, chemical resistance, and dimensional stability. The graphite electrodes, as mentioned earlier, are highly chemically stable and electrically conductive. The combination of PES for the shaft and graphite for the electrodes results in a sensor that can endure harsh industrial environments.
1.5 Dimensions
The sensor has a diameter of 24 mm (0.94 inch) and a length of 61 mm (2.40 inch). These dimensions are optimized for easy installation in various types of process equipment, such as pipes, tanks, and flow cells.
1.6 Temperature Sensor
The CLS21D is equipped with a Pt1000 temperature sensor. The Pt1000 sensor is widely used in industrial applications due to its high accuracy and stability in measuring temperature. By integrating a temperature sensor, the CLS21D can not only measure conductivity but also compensate for the effect of temperature on conductivity measurements. This is important because conductivity of a solution often changes with temperature, and accurate temperature compensation is necessary for precise conductivity readings.

2.Memosens Digital Technology

2.1 Non - Contact Inductive Signal Transmission
One of the key features of the CLS21D is its use of Memosens digital technology, which employs non - contact inductive signal transmission. This method of signal transfer eliminates the need for direct electrical connections between the sensor and the transmitter. Instead, an inductive coupling is used to transmit data and power. This has several advantages. Firstly, it reduces the risk of signal interference, as there are no physical wires that can pick up electromagnetic noise. Secondly, it improves the sensor's resistance to corrosion and moisture, as there are no exposed electrical contacts that can be affected by the environment.
2.2 Maximum Process and Data Integrity
The Memosens technology enables the CLS21D to achieve maximum process and data integrity. The sensor stores all relevant calibration and process data internally. This means that if the sensor needs to be removed from the process for maintenance or replacement, all the data is retained. When the sensor is reinstalled, it can quickly resume accurate measurements without the need for extensive recalibration. Additionally, the digital signal transmission ensures that the data received by the transmitter is highly accurate and reliable, minimizing errors in the measurement process.
2.3 Predictive Maintenance
Another significant advantage of Memosens technology is its ability to facilitate predictive maintenance. The sensor can continuously monitor its own performance and internal parameters. By analyzing this data, it is possible to predict when the sensor may require maintenance or replacement before it fails. For example, if the sensor detects a gradual change in its electrical characteristics or a deviation in its calibration, it can send an alert to the operator. This allows for proactive maintenance, reducing the risk of unexpected downtime and improving the overall efficiency of the process.
2.4 Ease of Operation
Memosens technology also simplifies the operation of the CLS21D. The sensor is easy to install and commission, as the non - contact connection reduces the complexity of the wiring process. The integrated data storage and digital communication make it straightforward to configure the sensor and retrieve measurement data.

Specification

Measurement Range	0–200 µS/cm to 2000 mS/cm (model-dependent)
Temperature Range	–10°C to +100°C (PVDF), –10°C to +80°C (PP)
Pressure Rating	Up to 6 bar (depends on model)
Electrode Material	Stainless steel, platinum
Process Connections	Immersion, flow-through, retractable
Output Options	4–20 mA, Memosens (digital)
Certifications	ATEX, IECEx (for hazardous areas)
Max temperature	80°C

Company Profile

KeRui (Weifang) Automation Equipment Co. Ltd. Has maintained a cooperatve relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.

We supplied the tuning fork level gauge to the Rosemount factory and have been well received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.

The companies we have cooperated with:

1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008

2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant

3. Awarded "Outstanding Supplier by Yaxing Group in 2013

4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.

5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.

6.160 transmitters and 20 electric autuators for the Shandong Laigang Yongfeng Steel expansion project in 2019

7.In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built) equipped 460 transmitters from our company.

8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.

9.In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.

Certifications

Our Service

OEM / ODM services
To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
Order services
Fastest reply:Professional sales engineers 7/24 online services
Payment terms:T/T ,Western union, Paypal, Credit Card, L/C others
Fast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment .
 
MAINTENANCE & AFTER-SALES SERVICES
Customer Feedback:  Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors

Packaging & Shipping

FAQ

Q1: How long will it take you to give me the reply?

A: We will reply to you as soon as we see the information

Q2: What is the delivery time?

A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you

Q3: How about your package? 

A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.

Q4: How about the payment terms?

A: You can choose T/T.

Q5: Do you provide samples? 

A: Yes, we have materials in stock to help you get the samples as soon as we can.

Q6: What is the MOQ?

A:1PC.

Q7: Can I get a lower price if I order large quantities? 

A: Yes, cheaper prices with larger orders.

Q8: Why choose us?

We have a perfect customization, not only to provide you with quality products, but also to have a professional customer service team available at any time to provide you with support. We pay more attention to establishing a long-term cooperative relationship with you to achieve continuous business growth.

Q9: How can we guarantee quality?

We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them.