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The whole instrument is composed of two parts: "ZD - 2 precision automatic potentiometric titration" and "DZ - 1 type titration device". The former can be used as a pH meter or a pH meter.。
First, the use of instruments
1. "ZD - 2 type precision automatic potentiometric titration instrument, I plant a pointer type titrator the modified product of the system, in the use and operation, with considerable coherence, in order to facilitate the operation and application of many old user.
2 "ZD2" in a separate as acidity meter or sodium meter use (the two measurement items with the same value). Suitable for:
(1) determination of pH -- using the pH type E-900 composite electrode, which can be used to measure the pH value (pH value) of the aqueous solution of a chemical laboratory;
(II) -- and "type 6801 PNA glass electrode" and "232 calomel electrode" supporting the use of the determination of PNA, for chemical laboratory sample measurements in aqueous solution of Na concentration values (PNA); the electrode separately)
(three) -- Determination of potential measurement of various electrode potentials and other DC millivolt value (mV).
(four) at the same time increase the temperature measurement function, accurate display solution temperature, can be automatic or manual temperature compensation, easy to operate, accurate and reliable.
Supporting the use of 3 ZD2 type and DZ1 type, suitable for:
(a) with different reference electrodes and reference electrodes, the capacity of the chemical laboratory was analyzed;
(two) constant control of a certain pH value, pNa value, or electrode potential;
(three) using a manual method for potentiometric titration to obtain such as a point or capacity analysis.
4 in order to enable the operator in the entire titration, the reaction process, can accurately display the potential of the sudden change of the electrode potential, so the ZD - 2 type of indicator, using easy to read the 3 1/2 digital tube display.
5.ZD - 0 with 2 ~ 1V signal output function, the use of this function can be easily drawn out the entire titration curves, for the user to analyze and save. Requirements for recorder.
(a) the recorder must be at the center of zero (zero phase should be consistent with the instrument).
(two) input sensitivity: 0 ~ 1V full scale。
Two, the technical performance of the instrument
1 separate use:
measuring range
PNa2~6 0.01pNa + 0.06pNa resolution electrode resistance precision pH 0 ~ 14.00pH 0.01ph 1km + 0.03pH/3H PNA Na 2.3~2300 mg of / L
1mV + 3mV = 1999~0~1999mV measuring potential
Measuring potential temperature 0 ~ 100 C 0.1 C + 0.5 C
Analysis of titration concentration control accuracy of 0.1N less than 2 0.02m1 capacity
3 automatic titration acidity titration concentration control accuracy of 0.1N is less than or equal to 0.05pH
4 automatic control electrode potential titration concentration control accuracy of 0.1N is less than or equal to 5mV
5 temperature compensation method and range (pH and pNa are the same):
(a) automatic or manual compensation
(two) 5 ~ 95
6 terminal setting adjustment range: 1 ~ 14 pH or 0 ~ + 1500mV.
7 titration pre control range: from the end of 1 ~ 7PH or 5 ~ 500mV.
8 power consumption: (a) ZD2 type: 10VA (two) DZ1 type: 8VA
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