Packaging Details
- Unit Type: piece
- Package Weight: 0.6kg (1.32lb.)
- Package Size: 30cm x 30cm x 20cm (11.81in x 11.81in x 7.87in)
Using steps
1,Unscrew the membrane cap and rinse the electrodes, membrane caps and metal tube parts with deionized water, and then dry out.
2,A 3/4 volume of internal solution is injected into the membrane cap and then the membrane cap is turned back to the electrode until it is screwed. In this process, such as
Overflow of internal solution is normal.
3,Clean and dry the electrode surface and touch the diaphragm at the top of the film cap to check if the diaphragm is fully exposed to the top of the metal tube and must not be dissolved
Liquid spacer, otherwise reinstall the electrode cap.
4,The electrode is connected to the instrument to be opened so that the electrode is exposed to the air and waits45Minutes or so.
Note: the air around the electrode should be free of star flow and the air temperature is relatively stable.
5, The zero oxygen and full degree correction of the electrode is carried out according to the instrument instruction, and then the dissolved oxygen value of the water sample is measured.
Electrode calibration
1,Zero oxygen calibration
The electrode is immersed in anaerobic water at the end5%In the freshly prepared anhydrous sodium sulfite solution, zero oxygen is maintained after reading is stable
Quasi.
2,Full scale calibration
The electrodes are placed in the air (suitable for ordinary users) or immersed in a constant temperature saturated dissolved oxygen deionized water (suitable)
For users with higher measuring accuracy), after the instrument temperature is stable, the full scale calibration is carried out.
Electrode preservation
1,Short term storage: the finished electrode surface is rinsed with deionized water and the electrode is dipped into deionized water.
2,Long term storage: unscrew the membrane cap and shake off the internal fluid, rinse the electrode cap and the metal tube part with deionized water, and then dry. Cyclic membrane
Cap, put the electrode back in the packing box, and keep it dry at room temperature.
Matters needing attention
1,In the calibration and measurement of electrodes, water samples should be kept liquid. For static or slow flow water samples, electrodes can be pinched by hand
Cap, per second20-30)cmA velocity, a horizontal, a wobble electrode, or an external uniform agitator.
2, The diaphragm of the electrode is not subject to any damage. If the film is damaged or used for a long time, replace the new membrane cap.
3,The charge of the electrode needs to be replaced periodically. The replacement time of the filling liquid is related to the electrode measurement situation and the frequency of use
When the performance is down or can not work properly, please replace the charge in the electrode first. If you can\`t solve the problem, refer to the "electrode" dimension
Protect operation.
Electrode maintenance
The membrane cap, remove the solution in the metal tube, polished with fine sandpaper, rinse with deionized water clean and dry.
Other matters
1,Within one year from the date of production, customers should be able to meet all technical specifications when dismantling boxes.
2,If the user uses the box to disassemble, it is found that the product can not be measured normally due to quality problems.
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