1410Us / cm conductivity calibration solution Use: DJS-1, when using CON-1 conductivity electrode calibration instrument Preparation: a potassium chloride reagents to temperature drying for 2 hours at 220 degrees Celsius oven, weighed 0.744g placed in the container, with conductivity lower than 0.2uS / cm, at a constant temperature of 20 degrees Celsius or distilled water 1000mL of deionized water to dissolve the reagents. Of course, although a simple configuration, but insufficient condition, then he went to the merchant to buy it!
Instrument Description: GLP compliance with international standards; instrument with three composite electrode, an electrode for automatic temperature compensation and PH measurement, easy to use; with timing measurement function, users can set their own needs; self-diagnosis function measurements help determine the cause of error; the same time, also has RS232 output, data storage and other intelligent functions; instrument IP54 waterproof!
PH meter classification there are many, from different precision can be classified, from reading the index can also be classified using the environment with the element type can still be classified under a single introduction, main categories explained pH meter, depending on the situation began to sub-categories are different acidity meter manufacturers -PH meter manufacturers - SECCO environmental equipment. According to the environmental class uses
Accuracy acidity levels and instruments are two different concepts, equipment level and its accuracy is not entirely consistent. Its acidity level is an indicator (the electric meter) scale value (minimum display resolution or value) represents, for example: indexing of 0.1pH instrument instrument called a 0.1; minimum display value 0.001pH the instrument is called 0.001 instruments, and so on. The accuracy of the instrument is the electric meter with integrated error test electrode supporting standard solution, i
PH meter is measuring the pH value of the instrument. Body pH meter is a precision potentiometer. The determination of the composite electrode inserted in the test solution, due to the acidity of the test solution (hydrogen ion concentration) different and produce different force, it will be amplified by the DC, concluded that by reading the indicator (voltmeter) test solution pH. Widely used in industry, agriculture, scientific research, environmental protection and other fields. The instrument is also food plants, drinking water plants do QS, PHCCP certification essential testing equipment.
PH value is calculated as follows: where [H] refers to a solution of hydrogen ion activity (sometimes written as [H3O], hydrated hydrogen ion activity), the unit is mol / liter. In dilute solutions, the hydrogen ion activity is approximately equal to the concentration of hydrogen ions, the hydrogen ion concentration can be approximately calculated. At standard temperature and pressure, pH = 7 aqueous solution (such as: water) is neutral, it is because the water at standard temperature and pressure naturally ionized hydrogen ions and hydroxide ion concentration of the product (water ions product constant) is always 1 × 10 ^ -14, and the concentration of the two ions is 1 × 10 ^ -7mol / L. Description pH less than 7 OH concentration greater than the concentration of H, so the solution is strongly acidic, and the pH is greater than 7 is less than the described concentration of H OH concentration, it is strong alkaline solution. So the pH value is smaller, the stronger the acid solution; pH greater the alkaline solution also stronger. In the non-aqueous solution or non-standard conditions of temperature and pressure, pH = 7 may not represent the solution was neutral, which need to calculate the ionization constant of the solvent under such conditions to determine neutral pH value. Under such 373K (100 ℃) temperature, pH = 6 neutral solution.
If the electrodes do not measure should be put on the yellow protective casing, which enables the electrode in a wet state, it helps extend the life of the electrode. Every month or so, to deal with pen PH meter electrode cleaning, first with gentle water spray attachment, then soak the electrode in the cleaning solution for some time, and then washed with water. Sensor holder should also be cleaned. After each cleaning, use a buffer solution for calibration
If the electrodes do not measure should be put on the yellow protective casing, which enables the electrode in a wet state, it helps extend the life of the electrode. Every month or so, to deal with pen PH meter electrode cleaning, first with gentle water spray attachment, then soak the electrode in the cleaning solution for some time, and then washed with water. Sensor holder should also be cleaned. After each cleaning, use a buffer solution for calibration
1410Us / cm conductivity calibration solution Use: DJS-1, when using CON-1 conductivity electrode calibration instrument Preparation: a potassium chloride reagents to temperature drying for 2 hours at 220 degrees Celsius oven, weighed 0.744g placed in the container, with conductivity lower than 0.2uS / cm, at a constant temperature of 20 degrees Celsius or distilled water 1000mL of deionized water to dissolve the reagents. Of course, although a simple configuration, but insufficient condition, then he went to the merchant to buy it!
Instrument Description: GLP compliance with international standards; instrument with three composite electrode, an electrode for automatic temperature compensation and PH measurement, easy to use; with timing measurement function, users can set their own needs; self-diagnosis function measurements help determine the cause of error; the same time, also has RS232 output, data storage and other intelligent functions; instrument IP54 waterproof!
PH meter classification there are many, from different precision can be classified, from reading the index can also be classified using the environment with the element type can still be classified under a single introduction, main categories explained pH meter, depending on the situation began to sub-categories are different acidity meter manufacturers -PH meter manufacturers - SECCO environmental equipment. According to the environmental class uses
PH meter classification there are many, from different precision can be classified, from reading the index can also be classified using the environment with the element type can still be classified under a single introduction, main categories explained pH meter, depending on the situation began to sub-categories are different acidity meter manufacturers -PH meter manufacturers - SECCO environmental equipment. According to the environmental class uses
Accuracy acidity levels and instruments are two different concepts, equipment level and its accuracy is not entirely consistent. Its acidity level is an indicator (the electric meter) scale value (minimum display resolution or value) represents, for example: indexing of 0.1pH instrument instrument called a 0.1; minimum display value 0.001pH the instrument is called 0.001 instruments, and so on. The accuracy of the instrument is the electric meter with integrated error test electrode supporting standard solution, i
PH meter is measuring the pH value of the instrument. Body pH meter is a precision potentiometer. The determination of the composite electrode inserted in the test solution, due to the acidity of the test solution (hydrogen ion concentration) different and produce different force, it will be amplified by the DC, concluded that by reading the indicator (voltmeter) test solution pH. Widely used in industry, agriculture, scientific research, environmental protection and other fields. The instrument is also food plants, drinking water plants do QS, PHCCP certification essential testing equipment.
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