LLZ-8077A fully automatic chloride ion potentiometric titrator

Usage Overview

The fully automatic chloride ion potentiometric titrator is an intelligent chloride ion automatic potentiometric titrator developed based on the 11.1 chloride ion content potentiometric titration method in GB/T8077-2012 "Test Method for Homogeneity of Concrete Admixtures". Mainly used for chemical analysis of various components in various industries such as inspection agencies, cement enterprises, concrete mixing plants, research institutes, petrochemicals, pharmaceuticals, drug testing, metallurgy, etc. It has the advantages of easy operation, high accuracy, and intelligence.

Product advantages: Why do we call itFully automaticCement chloride ion potentiometric titrator

1. The world's first truly fully automatic function has been successfully developed, and the entire experimental process (calibration of silver nitrate solution, blank experiment, and sample calibration) does not require calculations and directly displays the final results.

2. High measurement accuracy, using imported control chips and micro pumps, titration accuracy range of 1ml~0.01ml, adjustable according to user requirements.

3. To improve work efficiency and save testing time, this instrument has the functions of setting rapid titration and terminating titration (the first of its kind in China).

4. Save testing time by completing a fast drop test on a sample within 3 minutes at a dosage of 0.1ml/time, thus saving testing time.

5. Automatic cleaning function, this machine is equipped with a unique cleaning function button. When starting up and changing the silver nitrate solution, choose 1-3 times of cleaning according to the actual situation on site to reduce the impact of changes in the concentration of silver nitrate solution on the experimental results.

6. The instrument has a wide range of applications and has the function of continuous titration and liquid absorption. It adopts an integrated automatic reversing valve device controlled by a microcomputer, which does not require manual control or switching of injection or replenishment methods, thus improving the accuracy of titrant measurement. It has the advantage of high degree of automation. The instrument uses a large capacity injection pump (25ml) to measure both low and high levels of chloride ions in cement samples.

7. The instrument has powerful comprehensive functions and can also perform various titrations such as acid-base titration, oxidation-reduction titration, precipitation titration, comprehensive titration, non-aqueous titration, etc. It has functions such as pH measurement, potential measurement, temperature measurement, etc.

8. Switching between Chinese and English (the first of its kind in China) is designed to facilitate domestic enterprises in setting up factories abroad.

9. The instrument design is unique. In order to adapt to the harsh laboratory environment in the cement industry, it adopts a LCD screen display with ten buttons (each button has a lifespan of 2 million times). Its advantages are corrosion and impact resistance. The whole machine adopts a disposable injection molding process, which has the advantages of corrosion resistance, rust resistance, lightweight product, beautiful appearance, and long service life.

10. The instrument is equipped with a large capacity SD memory card that supports GLP standards. It wirelessly stores test results according to the capacity of the SD card. The instrument automatically generates files for daily storage, making it convenient for users to store and query data. It can be moved and used on a computer. This instrument comes with a USB flash drive for the convenience of users to provide operation videos.

Main technical performance of the instrument

1. Measurement range

PH value: (0.00~14.00) pH;

mV值: (-1800.0～1800.0)mV；

Temperature value: (-5.0~105.0) ℃.

2. Resolution

PH value: 0.01pH;

mV值: 0.1mV；

Temperature value: 0.1 ℃.

3. Basic error of electronic unit

PH value: ± 0.03pH ± 1 word;

mV值: ±0.05%F.S；

Temperature value: ± 0.5 ℃;

4. Allowable deviation of burette capacity

10ml burette: ± 0.05ml;

20ml burette: ± 0.07ml.

5. The infusion or replenishment speed of the burette:<55s (when the burette is full).

6. Repeatability of titration analysis: 0.3% F.S.

7. Input impedance: not less than 1 × 12¹²Ω

8. Repetitive error of electronic unit: not greater than 0.5mV.

9. Electronic unit stability: ± 0.5 mV ± 1 word/3h.

10. Control titration sensitivity: ± 2mV.

11. Normal working conditions of the instrument

Environmental temperature: (5.0-35.0) ℃;

Relative humidity: not exceeding 80%;

Power supply: (220 ± 22) V, frequency (50 ± 1) Hz

Except for the geomagnetic field, there is no electromagnetic interference in the surrounding area.

12. Dimensions (mm): 340 × 290 × 430 (length × width × height).

13. Weight (kg): ＜ 10kg.