BOQU PHS-1701, User Manual, Page: 4 / 21

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1 Introduction
Thank you very much for purchase of our company's high-quality pH meter, good
ease of use, is our product's consistent pursuit.
1.1 Safety precautions
Operator protective measures
Do not work in an explosive environment! Because the instrument
case is not airtight
(May cause an explosion hazard due to corrosion caused by spark
formation or immersion in gas)
。
When using chemicals and solvents, follow the operator's operating
instructions and laboratory safety procedures!
Operators operate safety precautions
It is forbidden to separate the shell of the instrument, only allow
the company to appoint a professional service personnel to repair
the instrument!
Please avoid the following environmental factors
：
1. Violent shaking
2. Under sunshine for long time
3. Atmospheric humidity more than 85%
4. The presence of corrosive gases
5. Ambient temperature below 5 ° C or higher than 40 ° C
6. Strong electric field or magnetic field