HZ3230 ASTM D3230 Microcomputer Salt Content Measuring Instrument
HZ3230 Microcomputer Salt Content Measuring Instrument is based on the principle of microcoulometric titration. When the halide in crude oil is heated and pumped into the water, the chloride ion in the sample is immersed in the water. The water sample containing chloride ion is directly added to the titration cell. The reaction between silver ion and chloride ion is produced by electrolysis. After the reaction, the silver ion is automatically stopped from electrolysis. The chloride ion or salt content in the sample can be calculated automatically by the computer according to the amount of electricity consumed by the silver ion produced.
In microcoulometric titration, the electrolytic current is a constant current. The pulse width of the titration current is determined by the signal caused by the sample entering the electrolytic cell. After amplification, the signal is transported to the MCU and then to the electrolytic circuit, which is sent to the electrolytic cell for electrolysis to produce the titrative substance. When the measured substance decreases gradually, the pulse width of signal and electrolytic current decreases gradually, and the measured substance W (g).
Main features:
1. The instrument can be used for the titration of chloride ions with silver nitrate. It can be used for more accurate determination, with higher sensitivity and simpler determination. It is unnecessary to calibrate the solution. It is not only suitable for the determination of high content chloride ion, but also suitable for the determination of trace chloride ion in samples. Computer control, display the whole process status, parameters, print various results.
2. Using innovative design of titration cell, special sand core replaces ion-exchange membrane, avoiding the ion-exchange membrane damage and bringing wrong results. It makes the instrument the best salt content determinator in China.
3. Microcomputer-controlled measurement and electrolysis, simple operation, reliable performance, good stability, easy installation.
4. It can automatically distinguish the result accurately, process and save the data automatically.
5. The amount of electricity needed to supplement the consumed silver ions can be calculated.
Implementation criteria:
Standard for determination of salt content in crude oil by SY/T 0536-2008
Determination of Salt Content in Crude Oil GB/T 6532-2012 by Potentiometric Titration
ASTM D3230-2013 Standard Test Method for Salt Content in Crude Oil (Electrometric Method)
Technical parameters:
1. Signal detection range: - 999 ~+1000 microvolts (V)
2. Signal resolution: 1 microvolt (V)
3. Detection sensitivity: 0.2 mg NaCl/L
4. Detection range: 0.2-10 000 mg NaCl/L, 0.2-10 000 mg Cl/L
5. Accuracy: <2mg/L
Absolute deviation: +0.2mg/L >2mg/L
Relative deviation: +10%
6. Titration method: automatic electrogenic titrator for titration
7. Power consumption: 40W
8. Environmental conditions: 10-40 C, relative humidity not more than 80%, no obvious electromagnetic field effect.