CHEMINS INSTRUMENT CO., LTD Rev2020-04 6/11
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powering up.
Cable specification: Considering that the cable is immersed in water (including sea water) for a long
time or exposed to the air, the cable has certain corrosion resistance. The outer diameter of the
cable is Φ6 mm and all interfaces are waterproof.
Ⅳ、Maintenance And Maintenance
1. Use and maintenance
Conventional electrodes require periodic cleaning and calibration, and the maintenance cycle is
determined by the customer based on his or her own operating conditions. Cleaning method for
conventional electrode: Remove the attached material with a soft brush (be careful to avoid
scratching the surface of the electrode), then rinse with distilled water, and then perform
calibration.
Electrode cleaning method:
The inductive salinity electrode is basically maintenance-free, and its normal operation will not
be affected by pollution or slight scaling of the shell.
If it needs clean, use a soft brush or sandpaper to remove attachments, and then clean with
distilled water, calibration after operation.
Because the inductive electrode often works in the environment which is easy to scale or dirty,
the cleaning strength can be increased appropriately. Slight scratches on the electrode surface
will not affect the normal operation of the electrode, but it is necessary to avoid penetrating
the electrode shell.
2. Calibration
a) Zero calibration
Rinse the sensor with distilled water and blot the liquid with filter paper. Place the sensor on the
power supply and place it in the air for about 3 minutes. After the value is stable, perform zero
calibration.
b) Slope calibration
Place the electrode vertically in a standard solution (20% full scale - full scale). Note that the
electrode is at least 2 cm from the bottom and side walls of the vessel for slope calibration. The
calibration instructions are detailed in the appendix.
Ⅴ、Quality and service
1. Quality assurance
The quality inspection department has standardized inspection procedures, advanced and
perfect testing equipment and means, and strictly in accordance with the regulations, to do
