SG-68 Cement Calcium Magnesium Content Tester Lime Cement Dosimeter

This instrument can measure both lime dosage and effective calcium oxide content in lime. Easy to operate and convenient to use. Can be used for both AC and DC. Fully automatic digital direct reading type. Optional printer output

SG-6/8 typeCement Calcium Magnesium Content TesterTechnical parameters:

1. Measurement range and error:

Lime dosage:6.0% 18.0% Absolute *. 4%

Cement dosage:3.0% 10.0% absolute *. 4%

Effective calcium oxide content:1％

2. Resolution:

Lime dosage:0.1％

Cement dosage:0.1％

Effective calcium oxide content:1％

3. Weight: 8KG

4. Power supply voltage: 220V

5. Power: 300W

6. Environmental conditions for use: ambient temperature -10 ℃~40 ℃, relative humidity<80%

The multifunctional direct reading calcium analyzer can not only measure the dosage of lime and cement, but also measure the content of effective calcium oxide in lime. At the same time, the instrument can also be used as a standard ion potentiometer for electrochemical research or for the determination of other ions after replacing the ion selective electrode. This instrument adopts16 bit A/D converter with high input impedance design, stable data, and the ability to input any ion selective electrode. Calibration data can be stored inside the instrument without the need for repeated calibration. Can be connected to a micro printer to print test conclusions (SG-8 model only).

Technical specifications of SG-6/8 cement calcium and magnesium content analyzer:

1. Measurement range and error:

（1) Lime dosage: 6.0% to 14.0%, with an absolute error not exceeding 0.4%

（2) Cement dosage: 3.0% to 10.0%, with an absolute error not exceeding 0 ４％

（3) Effective calcium oxide content: 20% to 80%, with an absolute error of no more than 2%

2. Resolution

（1) Lime dosage: 0.1%

（2) Cement dosage: 0.1%

（3) Effective calcium oxide content: 1%

3. Power consumption: 10W

4. Weight: 8kg

5. Volume: 280 × 120 × 300mm

6. Usage conditions: Environmental temperature of 5-35 ℃, relative humidity less than 80%

7. Power supply: AC220V ± 10% magnesium content determination accuracy of 1%

Basic principle of SG-6/8 cement calcium and magnesium content analyzer:

Lime is divided into two types: calcium lime and magnesium lime. The main chemical component of calcium lime is calcium oxide, while the main component of magnesium lime is not only calcium oxide, but alsoMore than 5% magnesium oxide. Calcium oxide reacts with water to form calcium hydroxide

The main components of cement are tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminate, and a small amount of gypsum. After mixing with water, tricalcium silicate undergoes rapid hydration, resulting in the formation ofCa(OH)2.。 The hydration of dicalcium silicate is relatively slow. A small amount of Ca (OH) 2 is generated. Calcium aluminate and iron aluminum tetracalcium do not form Ca (OH) 2 during hydration.

Ca (OH) 2 is difficult to dissolve in water, but its solubility in ammonium chloride solution is much greater than its solubility in water. Therefore, when adding a certain volume and concentration of NH4Cl solution, calcium hydroxide can quickly release calcium ions, and the amount of free calcium ions is closely related to the dosage of cement (or lime). The higher the dosage, the more calcium ions are released. Who will have a high and low effective calcium content, and the concentration of free calcium ions will also vary. The calcium electrode can convert varying amounts of calcium ions in unit form into the percentage dosage of cement, the percentage dosage of lime, or the effective calcium content in lime through the SG-6/8 multifunctional direct reading calcium meter, and display them directly on the instrument's display screen.

SG-68 Cement Calcium Magnesium Content Tester Lime Cement Dosimeter