“ZD－2The "Type Precision Automatic Potentiometric Titimeter" is a product of our factory's originalZD－2Type andDZ－1The modified product effectively combined with the titration device has considerable consistency in use and operation, making it easy for many old users to operate and apply.

“ZD－2When used separately as an acidity meter or sodium meter (using the same value for these two measurement items). Suitable for:

(1)pHdetermine——useE-900typepHComposite electrode, suitable for sampling and measuring the acidity and alkalinity of aqueous solutions in chemical laboratories（pHValue);

(II)pNadetermine——With“6801typepNaGlass electrode "and“232After being used in conjunction with the "type calomel electrode", it can be used for chemical laboratory sampling and measurement of aqueous solutionsNaConcentration（pNaValue); (This set of electrodes can be purchased separately)

（3） Potential measurement——Measure various electrode potentials and other direct current millivolts（mV）Value.

（4） At the same time, temperature measurement function has been added to accurately display the temperature of the solution, and automatic or manual temperature compensation can be performed. The operation is convenient, accurate and reliable.

ZD－2The precision automatic potentiometric titrator is suitable for:

（1） After being combined with different indicator electrodes and reference electrodes, the "predetermined endpoint potentiometric titration method" can be used for capacity analysis in chemical laboratories;

（2） Regarding a certainpHValue,pNaConstant control of the set value of the value or electrode potential;

（3） Perform potentiometric titration manually to obtain equivalence points or perform volumetric analysis.

4. In order to enable operators to accurately display the sudden changes in electrode potential throughout the entire titration and reaction processZD－2Type indicator, using easily readable31/2Display on digital display.

5 . ZD－2Type has0～1VThe signal output function allows for easy drawing of the entire titration reaction curve for users to analyze and save. Requirements for recorders.

（1） The zero value of the recorder must be in the center (consistent with the zero phase of the instrument).

（2） Input sensitivity:0～1VFull scale.

1. Used alone:

2. Capacity analysis

3. Automatic acidity titration

4. Automatic electrode potential control

5. Temperature compensation method and range (pH)Same as pNa):

（1） Automatic or manual compensation

（2） 5～95℃

6. Range of adjustment for endpoint setting:

1～14 pHOr between 0 and ± 1500mV.

7. Titration pre control range:

Leaving the finish line 1~7PH or 5-500mV.