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Machine Translated by Google
Instructions:
1. For the first use, please insert the battery and turn on the power. 2. Open the protective cover, then stretch the electrode, and then remove the latex
TECPEL
6. If the measured value is not equal to 7.00, use the adjustment pen
to fine-tune the adjustment knob on the right side of the
instrument, so that the value on the screen is displayed as 7.00.
Maintenance and maintenance:
If you do not use the instrument for a long time, please remove the battery, and make sure that there is enough KCL liquid in the latex protective case. Crystal particles
will form after KCL is placed for a long time. This is normal, please don't worry.
The battery needs to be replaced regularly. If the battery power is low, the error of the measured value will increase.
When measuring any strong acid or strong alkali liquid, please clean the electrode tip and wipe the instrument with a neutral liquid. Do not use it in liquid with strong
adhesion, such as ink. Because the electrode tip is quite fragile, it is not suitable for contact. Touch clean and wipe with a cloth.
3. Use distilled water or pure
water to clean the electrode
head, try to avoid using
general tap water or river
clean water to clean the electrode head.
Portable pH Meter
protective cover of the electrode.
4. Pour an appropriate amount of pH 7 calibration solution
5. Insert the dried electrode into the measuring cup
7. After the adjustment is completed, clean the
sensor head again.
8. Start measuring the liquid to be tested.
into the measuring cup, the liquid height is
enough to cover the front end of the electrode tip.
and wait for about 10 seconds for the value to
stabilize.
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