Chloride ion content analyzer

NJCL-C typeChloride ion content analyzerProduct Introduction
Chloride ions are an important factor in inducing steel corrosion. In order to avoid premature corrosion of steel bars, the control of chloride ion content in concrete raw materials is quite strict. The relevant regulations in our country clearly require that when selecting concrete raw materials such as sand, aggregates, cement, additives, and mixing water, chloride ion content testing must be carried out to fundamentally avoid introducing excessive chloride ions into the concrete. The testing of chloride ion content in structural concrete plays a significant role in evaluating structural properties and provides valuable reference for the renovation and repair of old structures.
This instrument is manufactured in accordance with relevant standards such as the "Code for Durability Design of Concrete Structures" GB/T50476-2008, "Technical Specification for Application of Sea Sand Concrete" JGJ206-2010, and "Code for Testing Concrete in Water Transport Engineering" JTJ270-98. It uses the Ion Selective Electrode (ISE) method and is equipped with software and chemical anti-interference reagents to quickly measure the water-soluble chloride ion content of inorganic materials such as concrete, sand and gravel, cement, and mixing water at room temperature, thereby achieving the goal of preventing premature corrosion of concrete reinforcement. This instrument is lightweight, compact in size, easy for users to carry, and suitable for on-site testing. The measurement range of chloride ion concentration is 10-5-10-1M (mol • L-1) or 0.0001% -30.00%.
Detection method: ISE method

NJCL-C typeChloride ion content analyzerexecution standard
Code for Testing Concrete in Water Transport Engineering JTJ270-98
Code for Durability Design of Concrete Structures GB/T50476-2008
Technical Specification for Application of Sea Sand Concrete JGJ206-2010
Test Code for Hydraulic Concrete (SL352-2006)
Test Method for Homogeneity of Concrete Admixtures GB/T8077-2000
Ready mixed concrete GB/T14902-2012
Test indicators: chloride ion concentration, mass percentage

Technical specifications
Working voltage: DC3.6V
Measurement accuracy:<10%
Data storage capacity:>100
PC communication parameters: baud rate 2400
Collection time: ≤ 3 minutes
Standby time:>24hr
Whole machine weight: 0.4kg
LCD size: 128 * 128

Product Features
1. It can measure the water-soluble chloride ion content of concrete mixtures, hard concrete, sand and gravel, additives, water and other materials, and directly output the results in units of molar concentration and percentage;
2. Built in standard formula, directly calculate the chloride ion content of concrete mixture
3. Special anti ion interference agent, capable of removing the oxidation effects of cyanide and ammonia ions, as well as the chelation effects of metal ions such as manganese and lead
4. Independent linear regression coefficient calculation program, self diagnostic instrument working status
5. Large screen LCD direct display, instant printing, one click completion of testing, easy to use and operate
6. Lightweight, compact body, easy for users to carry, suitable for on-site inspection
7. Optional micro printer that can print instantly even without using a computer
8. * Upper computer software, with national computer software copyright
9. Large capacity data storage, capable of storing 100 test data, continuous data recording, * reliable
Test objects: sea sand, ordinary sand, fresh concrete, hard concrete, cement, stones, additives, soil, concrete mixing water, and other water-soluble chloride ions.

Detection Principle

The ion selective electrode (ISE) method is used to quickly determine the chloride ion content of water-soluble substances such as concrete, sand and gravel, and additives. The measurement range of chloride ion concentration is 10-5-10-1M (mol • L-1) mol/L or 0.0001% -30.00%. The equipment is easy to operate and can be used for on-site testing. The data is accurate, fast, and fully automated.

testing procedure
1. Weigh the sample and add an appropriate amount of distilled water or extraction solution
2. Calibrate the electrode and measure the solution to be tested
3. Print measurement data
Test results
1. Chloride ion concentration Cl ˉ (mol • L-1)
2. Chloride ion percentage content (%)
3. Percentage content of chloride ions in concrete (%)
Measurement range: 0.0001% to 30.00% (Cl ˉ), 10-5 to 10-1M (mol • L-1)
Accuracy: ± 10% of reading (chloride ion)
Operating temperature: 0 ℃~40 ℃
Power supply: 1) 3.6V adapter; 2) Lithium battery
Battery life: 12 months (8 hours of daily use)

Instrument specifications
Host size: 180 * 70 * 30 (mm)
Host weight: 0.4kg
Host dimensions: 370 * 300 * 180 (mm)
Host weight: 5kg

system configuration
1. NJCL-C rapid chloride ion content analyzer
2. Domestic chloride ion selective electrode&calomel reference electrode
3. Calibration solution, anti-interference agent, chemical reagent
4. External micro printer (optional)
5. Charger
6. Upper computer analysis software