Product nickname: trace moisture analyzer, trace moisture tester, automatic trace moisture analyzer, automatic trace moisture tester, moisture analyzer, trace moisture analyzer, trace moisture tester, micro water meter, petroleum product moisture Analyzer, trace moisture analyzer, moisture rapid analyzer, micro moisture analyzer installation 1, the instrument should be placed on a flat workbench, the environment should minimize air convection. Electric Massager,Shoulder Massager,Electric Back Massager,Neck And Back Massager Ningbo Prestigeplus Commodity Co.,Ltd , https://www.prestigemedics.com Method and operation steps of trace moisture analyzer
2. There are no mechanical vibrations, corrosive gases, pollution, electromagnetic interference, etc. that affect the normal operation of the instrument.
3, power supply: single-phase three-wire system, AC220V ± 10%, 50Hz, must have a good ground.
4, the ambient temperature: 5 ~ 35 ° C.
5. Relative humidity: ≤ 85%.
The micro-moisture analyzer instrument self-test function connects the 220V AC power supply to the power socket, and turns on the power switch. When the titration socket and the measurement socket are open in the state of Figure 3, when the measurement socket is shorted, the measurement shows that the iodine is not counted and shorted. When the socket is titrated, the measurement shows that the water is over, and the counting presses the start button. After one minute, the alarm is given and the end indicator light is on, which is in accordance with the above process, indicating that the instrument main unit is working normally.
Micro-Moisture Analyzer Titration Pool Cleaning, Drying and Assembly 1. Open all the glass ports of the titration cell before loading the reagents, and titrate the cell, drying tube, sealing plug, etc. according to the requirements of the glass products. After washing, it was dried in an oven at about 105 ° C for about 3-4 hours, then taken out and placed in a desiccator for cooling. The cathode chamber and the measuring electrode can not be washed with water. It can be washed with acetone and methanol. After cleaning, it should be dried by a hair dryer. When cleaning, it should be noted that it should not be cleaned to the electrode lead. Otherwise, measurement errors will occur during the measurement of the sample.
2. Put the silica gel into the drying tube, be careful not to load the silica gel powder, and then install the plug of the sample injection port. After completing the above process, carefully insert the stirrer through the sample injection port, and then measure the electric level separately. , the cathode chamber, the drying tube, the injection cock, the sealing plug's grinding mouth, evenly coated with a layer of vacuum grease, except the drying tube and sealing plug of the cathode chamber are not installed, the other parts are attached to the corresponding parts, light Turn it lightly to make it a better seal.
3. Inject about 100-200 ml of reagent into the anode chamber through the sealing port with a funnel, and then use the funnel to inject the reagent into the cathode chamber through the cathode chamber drying tube socket. The liquid level of the cathode and anode chambers should be basically the same, and then dry after completion. Install the tube and sealing plug, gently rotate it to make it better sealed, put the titration cell on the magnetic stirrer, clamp it with the clamper, insert the measuring electrode and the titration electrode plug into the measuring and titration socket respectively. .
Determination of the measurement conditions of the trace moisture analyzer and operation steps 1. Parameter setting First, adjust the menu to the parameter setting position, and press the OK button to set the volume and density.
2, the print status in the parameter settings, there are two states of printing and not printing.
3. Date and time setting Turn the menu to the time setting and press the OK key. Number (××××年××月××日××××分××秒) Input Press the Select/Enter key. After each digit is set, press the function/determine key. The settings have been completed.
4. Average value: When the same sample or different samples need to calculate the water-containing average value, press the Select/Enter key in the recall menu to adjust to the print average position, and then press the function/OK button. The printer can be 1-N. The average number of injections is printed.
5, the operation steps (1) start to display a trace moisture analyzer, according to the stirring button, the magnetic stirrer in the electrolytic cell rotates, the stirring speed is suitable for the stirred electrolyte does not bubble.
(2) Press the function/determine button, the screen displays the relevant parameters, and the electrolysis switch is turned on (the new electrolyte shows iodine). The 50μl sampler can be adjusted to the balance with the appropriate amount of water. The used electrolyte has always been displayed when it is turned on. , through the electrolytic titration to reach the balance, the alarm, the end indicator light.
(3) When the instrument reaches the initial equilibrium point and is relatively stable, it can be calibrated with pure water.
A. 0.1 μl of pure water was withdrawn using a 0.5 μl injector.
Special Note: Slowly rotate the injector core while pumping up.
B. Press the start button.
C. Inject pure water into the anode chamber reagent through the injection cock. Note that the needle tip should be inserted into the reagent and avoid contact with the inner wall or electrode of the titration cell. The titration will start automatically after the injection.
D. After one minute, the buzzer sounds and the end point END indicator light is on. The display result should be 100±10μgH20, which is generally calibrated 3 times. If the three results are within the error range, the sample can be measured.
Special attention: the operation quality of the titration pool cleaning, drying and assembly, calibration of the instrument, etc. is a prerequisite for the success of the test, please be sure to operate according to the specified procedures and requirements!
(4) Sample test, a certain number of samples (usually in units of 1 ml) are injected into the titration bottle. After electrolysis reaches the end point, the end point indicator lights up and alarms, and the printer prints out the moisture content of the sample. When using the instrument for the first time or when the sample is different, it is necessary to pay attention to the volume and density of the sample to match the volume and density set in the machine.
(5) The measurement results are expressed in μgH2O units, and the moisture content in the sample is calculated by the following relationship:
The measured result (μgH2O) measured (μgH2O)
Water content PPM==
Sample quality (g) Sample density × sample volume The machine is equipped with automatic calculation function of mass (μg) and volume (ml) without manual calculation.
(6) Moisture determination in gas samples The titration operation of moisture in gas samples is the same as that of liquid samples. Only the sampling method is involved here. The gas sampling connector is shown in Fig. 5.
When measuring the moisture in the gas sample, the anode chamber must be filled with about 150 ml of electrolyte to ensure that the moisture in the gas is fully absorbed, and the flow rate of the gas should be controlled at about 0.5 L/min, if in the anode chamber during the measurement. The electrolyte is significantly reduced and should be filled with approximately 20 ml of ethylene glycol.