1. Double-click the workstation icon to open the workstation, click on the A channel - select the standard sample in the sample type - wait for half an hour to one hour to click to run to see the baseline - baseline stability (no up and down drift) - change The measuring point points to the coordinate button in the toolbar. The user specifies to change the voltage to -10-200 for 0-15 minutes.
2, do the standard sample - select the standard sample in the sample type - double click to view or modify the file method - click the sample and instrument information after the device number has a drop-down menu in the selection of the standard file, click OK, and then Needle standard, wait for the spectrum to be the default after the spectrum is finished. After double-clicking the peak of the spectrum, click on the toolbar to select what peak (if the component name is not clicked, the calibration curve 1 is turned on and confirmed. The name of the component appears. Peak order: hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane, acetylene.
3, do the oil sample in the sample type, select the test sample and double-click to view or modify the file method - click the sample and instrument information. After the device number, there is a drop-down menu to select the factory name - click the experimental information to change the gas out The volume and volume of the oil sample can then be determined. Then enter the oil sample, click the diagnosis after the oil sample is finished, and then print the reading point to print.
Suitable for installed chromatographs:
4. Start-up procedure: After the main unit is turned on for about 10 minutes, press the temperature parameter button to confirm (column chamber: 60° hydrogen flame 120° vaporization 70° thermal conductivity 80° conversion 380°). After confirming the error, press the RUN button to heat the chromatograph. 2) After the constant temperature lamp of the chromatograph is on for 15-30 minutes, press the “Ignition†switch (if necessary, observe the fire point is not), then press the “bridge flow†twice (the bridge flow is bright) ,
5, the shutdown step, press the bridge flow off, press the stop button to drop the "conversion temperature" to 120 ~ 150 degrees or so after the temperature Zui off the switch.
6, if you want to do the chemical plant oil, you can click on the equipment library in the toolbar? - Click Add - fill in the chemical plant information in the equipment number. Then double-click to view or modify the file method - click on the sample and instrument information. After the device number, there is a drop-down menu in which you can find the same transformer information in the same factory. Then change the information to make oil samples.
7, if you do the same transformer oil sample every other year, you can double-click to view or modify the file method - click sample and instrument information - there is a drop-down menu after the device number, you can find the same transformer information in the same factory. The folder name of the previous transformer can be written or written.
8. Create a new calibration curve. In the analysis method, select the new calibration curve. - A window will appear. Double-click the window under the component name to enter the component name. The same method is used to input the concentration of each component, and it is good to confirm.
9, manually judge the peak, first zoom in the spectrum and then click on the toolbar to increase the peak and then the peak start point, the vertex, the end of the three points, will come out a dialog box to determine a point, then right click to select refresh / Cancel the mode, then zoom out the spectrum to display the entire spectrum, then click on the diagnostic and print the reading point.
10, do the standard if any of the peaks do not come out by double-clicking the peak to make it green and then click on the component of the toolbar to select the name in the component name, (if the component name is not clicked, the calibration curve 1 is turned on. Confirm the name of the component)
How to make oil samples:
1) Using a large syringe, take 40 ml of the oil sample (should be sampled vertically downwards) and seal it with a red "plastic cap" (pinch the rubber cap). The gas in the syringe should be removed. After preparation, use a 5 ml syringe to extract 5 ml of nitrogen, carefully (take nitrogen) into the oil sample, and place it in the shaker for oscillation.
2) After the oscillation is completed, extract the oscillating gas with a 5 ml syringe.
3) Change the sample type to "Test Sample". Before entering the oil sample (gas), in the software aspect, fill in the oil sample information, double-click "View or modify the method file" under the analysis method, click "Experiment information", fill in the oil sample volume into "40" ML". The gas to be withdrawn should be written on the volume of the oscillating gas collected in the 5 ml syringe. Once finished, you can enter the oil sample.
4) Take 1 ml of the oscillating gas with a 1 ml syringe (sampling vertically downwards). Inject into the chromatograph for analysis.
Nitrogen, hydrogen, and air machine notes:
a) Try not to move during use to avoid air leakage.
b) Nitrogen, hydrogen, and air all-in-one machines have impurity filtering devices, in which blue is a color-changing silica gel that turns red when it encounters water, and replaces or bakes when red exceeds 2/3 of silica gel (must be observed often if It is not good to change the instrument for a long time.) Be sure to let the gas clean after shutting down, so that it is easy to unscrew the drying tube.
c) The instrument needs to add water regularly, because this is the need to generate gas. The position of adding water is on the black cover above to open the distilled water. The amount of water added is controlled according to the liquid level in front. Do not exceed the white line above the Zui. 1/3 plus water.
d) Nitrogen, hydrogen, and air are all connected until the chromatographic machine cools down. Otherwise, the chromatograph will be damaged. When the switch is turned off, the power button can be unplugged if necessary.
Gas Chromatograph Precautions a) It is very important that the gas source must be turned on before starting the heating and then the pressure is indicated on the left 4FA7 pressure gauge of the gas chromatograph. The ventilation is about 10 minutes before the temperature can be turned on or the machine is unfavorable.
b) It is also important to shut down one and a half hours after work, and the gas source can be turned off when the "conversion temperature" drops to about 120-150 degrees and the thermal conductivity is below 80 degrees below the column chamber. Shutdown step, press the bridge flow off and press the stop button to drop the "conversion temperature" to 120~150 degrees and then turn off the switch.
c) Go to work at the start of the lunch and eat at noon. Do not move the gas, hydrogen, and air knobs, otherwise the airflow ratio will be wrong.
d) When you encounter an alarm, look at the manual.
e) If the "peak" is lower than before, the machine will be aging. The so-called aging machine will add high temperature to the machine to age the high temperature attachment on the detector. The aging temperature: the column chamber 150 vaporization 100 heat conduction 90 hydrogen flame 150 conversion 390 , aging for 2 to 3 hours, will not use aging for a long time. Remember that aging can't open "bridge flow" (not set the temperature after pressing the running key, do not press the bridge flow open key) aging step, open the air source, set the aging temperature, press the ignition and press the ignition to set the fire, so aging 2 ~3 hours to stop cooling until they all fall below the working temperature. Set the operating temperature down to the same as the booting procedure (especially if the hydrogen flame temperature is not good). Turn the front door open when cooling down.
f) Do not change the parameters on the instrument. Do not arbitrarily change the parameters on the software unless you know.
If the needle is blocked during gas extraction, it can be discharged several times with force. The method of injection must be the same as the last method, so the error data is even smaller. It’s good to be unskilled and practice more.
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