ZDJ-2D fully automatic potentiometric titrator

ZDJ-2D fully automatic potentiometric titrator

This instrument adopts a plunger titration method, which is fully controlled by a microcontroller for titration process, LCD display, and resolution of 0.1mv. Therefore, the small feed rate of titration can reach 0.005ml, which is 100 times higher than that of a simple solenoid valve titrator with 0.05ml. This effectively prevents the phenomenon of equal point overshoot and makes the experimental results more accurate.
In terms of instrument parameter settings, it is simpler and more intuitive than similar imported instruments, reducing parameters by 1/3, and can remember and save the results of the next experiment. The input of parameters is divided into five keys: 1 titration parameter key, 2 structural parameter key, 3 mode key, 4 formula key, and 5 cleaning key. After setting the parameters, they can be reviewed and any one of them can be modified at will. After confirming the accuracy of the parameter input, all experimental preparations are ready. Press the start button to automatically titrate the instrument without the need for personnel management. Upon hearing the alarm, press the print button to print out the test report.
This instrument also has two modes of dynamic titration and quantitative titration:
1、 Dynamic titration: During the reaction process, when moving away from the equivalence point, feed with a large amount of feed, and when approaching the equivalence point, feed with a small amount of feed. The feed rate is automatically adjusted as the potential changes.
2、 Quantitative titration: Always titrate according to a pre-set feed rate, which can be used when producing degradation products.
Selection of printing format: ① To save paper, you can choose to print only the results, ② you can also choose to print all, which can show the changes in potential and the positions of equivalent points. And it can be seen that the equivalent point corresponds to the milliliters of titrant.
This instrument can determine 1-9 equivalence points in one experiment.
At present, more than 100 provincial and municipal drug testing institutes and multiple pharmaceutical factories are using our instrument, and our potentiometric titrator has been compared with Mettler's potentiometric titrator from abroad in the quality inspection department of Shandong Qilu Pharmaceutical Factory. The experimental results meet the requirements of the 2000 edition of the pharmacopoeia.
After comparative experiments, the reliability of the instrument has been confirmed. And it also has * testing capabilities that foreign instruments cannot reach. The price of this product is more than 50% lower than that of similar foreign products. In 2000, the pharmacopoeia stipulated that "potentiometric titration should be used for the detection of *". this year*In the key sampling, our fully automatic potentiometric titrator will definitely contribute to your sampling work.
In the inspection process of chemical drugs and traditional Chinese medicine, various methods such as acid-base titration, oxidation-reduction titration, final titration, and silver titration can also be used to control raw materials, intermediates, and finished products. On the basis of potentiometric titration, a fully automatic Karl Fischer moisture analyzer has been developed recently. Welcome to purchase.
◆ Application scope
Various chelation, oxidation-reduction, precipitation, acid-base reaction titration, and non-aqueous medium titration.
Main technical indicators
The accuracy is better than one thousandth of a milliliter.
Resolution of 0.1MV.
You can set titration methods such as dynamic, equivalent, and endpoint settings.
Automatically determine up to nine titration endpoints.
Built in electrode calibration and precision calibration program.
The calculation formula and data processing method can be customized by users.
The printer can print out the complete calculation results and reports.

Technical Requirements:

Measurement range:

PH value 0~+20.00;

Potential 0~± 2000mv;

Current: 0~± 200 μ A;

Temperature: 0~125 ℃;

resolution

PH value 0.01;

Potential: 0.1mV;

Current: 0~1 μ l

Temperature: 0.1 ℃;

Input impedance: 10¹⁵- Oh?

Small feed solution: 0.005ml;

Measurement modes: dynamic titration, equivalent titration, endpoint titration

Method storage capacity: 5 titration methods, 20 titration results

Other requirements:

Peripheral interface: printing interface; RS232C interface.

Chinese display, Chinese input, Chinese output, real-time clock, * formula template and other functions, dynamically display titration process, can be connected to a microcomputer, and can print curve graphs. The titrator can be upgraded through the network, and Windows Chinese monitoring software is availableDifferent electrodes can be selected for acid-base titration, non-aqueous titration, redox titration, complexometric titration, silver content determination, ion concentration determination and other experiments.

standard configurationofThe electrode can perform acid-base titration and non-aqueous titration.Precipitation titration requires a saturated calomel electrode and a silver electrode.Redox titration requires a platinum electrode and a saturated calomel electrode.Complexation titration requires the addition of a saturated calomel electrode and a calcium electrode.