Specifications:

■ Host size: 180 * 70 * 30 (mm)

■ Host weight: 0.4 kg

■ Host dimensions: 370 * 300 * 180 (mm)

Total weight: 5 kg

System configuration:

NJCL-H analyzer

Imported composite chloride ion selective electrode from the United States

Calibration solution, anti-interference agent, chemical reagent

■ External micro printer (optional)

■ Charger

■ Upper computer analysis software

Execution standards:

Code for Testing Concrete in Water Transport Engineering JTJ 270-98

Code for Durability Design of Concrete Structures GB/T 50476-2008

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/T 8077-2000

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 the safety of the structure, and provides a valuable reference for the renovation and repair of old structures. This instrument is manufactured in accordance with relevant standards such as GB/T 50476-2008 "Code for Durability Design of Concrete Structures", JGJ206-2010 "Technical Specification for Application of Sea Sand Concrete", JTJ 270-98 "Code for Testing Concrete in Water Transport Engineering", etc. It uses the Ion Selective Electrode (ISE) method and is equipped with professional 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 10-4 to 10-1 M (mol/L-1) or 0.0001% to 30.00%.

characteristic:

Adopting composite chloride ion selective electrodes imported from the United States, with stable performance and fast and accurate measurement.

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.

Built in standard formula, directly calculate the chloride ion content of concrete mixture.

■ Unique linear regression coefficient calculation program, self diagnosing the working status of the instrument.

■ Unique anti ion interference agent that removes the oxidation effects of cyanide and ammonia ions, as well as the chelation effects of metal ions such as manganese and lead.

Large screen LCD direct display, instant printing, one click completion of testing, easy to use and operate.

■ Lightweight, compact body, easy for users to carry, suitable for on-site inspection.

Optional micro printer, which can print instantly even without using a computer.

The upper computer software has national computer software copyright.

Large capacity data storage, capable of storing 100 test data, with continuous data recording, ensuring safety and reliability.

Test object:

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 10-4 to 10-1 M (mol/L-1) or 0.0001% to 30.00%. The equipment is easy to operate and can be used for on-site testing. The data is accurate, fast, and fully automated.

Parameters:

■ Working voltage: DC 3.6V

Measurement accuracy:<10% (measurement result accuracy controlled within 5%)

Data storage capacity: 100 records

PC communication parameters: baud rate 2400

■ Collection time: 30 seconds

■ Standby time:> 24 hr

■ Whole machine weight: 0.4 kg

LCD size: 128 * 128

Test steps:

■ Weigh the sample and add an appropriate amount of distilled water or extraction solution

Calibrate the electrode and measure the solution to be tested

Print measurement data

Test results:

Chloride ion concentration Cl ˉ (mol/L-1)

Chloride ion percentage content (%)

Percentage content of chloride ions in concrete (%)

Measurement range: 0.0001% to 30.00% (Cl ˉ), 10-4 to 10-1 M (mol/L-1).

Accuracy: ± 10% of the reading (chloride ions).

Operating temperature: 0 ℃ to 40 ℃.

■ Power supply: 1) 3.6V adapter; 2) Lithium batteries.

■ Battery life: 12 months (8 hours of daily use).