One: In order to extend the service life of POOL CHECK and ensure measurement accuracy, please note:
1. When not in use, keep the switch in the OFF position (always facing "PH") to keep it cool and dry, and light-proof
2. Do not immerse the probe in any other liquid, small pool or mineral water
3. Check the battery regularly to see if it is fully charged. ---- 1 x AA battery that requires 1.5V 2"
Probe cleaning method:
A. Using #600 sandpaper, gently wipe off the generated objects on the metal needle
B. Wash with not strong soap and wash in water, then dry with a clean paper towel
C. Wait 3-5 minutes to reduce static electricity
Three: Chlorine calibration ----- debugging Before you use ET to test your swimming pool or SPA water for the first time, be sure to debug ET according to the following steps:
1. Use a conventional liquid testing tool
2. Record the value that chlorine reads, because you will be useful. (For example, 1.5PPM)
3. No need to adjust PH value
Four: How to proofread ET
A. Install a 1.5V AA battery
B. Hold ET in one hand and the probe in the other
C. Insert the probe into the black zone in the water D. Stir gently with the probe in the water
E. When the probe is still in the middle, turn the wheel on the tester to the left toward "CL", then slowly turn back to the right until the needle meets the chlorine value previously measured with a conventional liquid meter
F. Remove the probe from the water without touching the wheel, the indicator will move to a correct and stop on a letter between A and E. This letter is the value you debug.
Note: Whenever the ET is used to test the chlorine value, it must be debugged according to the “Debugging Steps” before use.
Five: Test the chlorine value: The chlorine value of the general pool is 1.2 to 1.7PPM
1. It is found that the PH value of the test is not accurate, the measured value is 2-3 times the correct value, or the PH value is not displayed.
2. The pointer of the tester shakes back and forth, cannot point to the left, and the value is not displayed.
Answer:A, the water quality tester has the difference between measuring CL and PH. The surface of the water quality tester has a moving wheel marked CL and PH. If you want to test CL, you need to move to the CL direction. If you want to measure PH, Move to PH direction
B. It is not necessary to install a battery when measuring the PH value, but it is necessary to install the battery when measuring the CL value.
C, a part of the pointer is silver, and the other part is black. During the test, the black and silver parts should be completely immersed in water.
3. How to calibrate the tester.
It is not necessary to calibrate to measure PH, it is necessary to calibrate before measuring CL.
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