CLEAN Instruments PH200 Operation Manual page 4

1 Preface
Thank you for selecting CLEAN meter.
Although the meter use advanced technology and meet the requirements of current safety rules,
improper use can still threaten the safety of users, and / or cause harmful influences to factory and
other equipments. Therefore, before using the meter, relevant person must read and understand
contents of this operation manual.
Besides the reasonable prices, Clean meters also have the following advantages:
- Simple operation. This operation manual provides you clear and easy operation guidance.
-Humanized design, Comfortable holding.
-Multiple accessories available, such as sensors, buffer solution etc.
Portable Meter Benchtop meter
PH PH200 PH500
Conductivity / TDS / Salinity CON200 CON500
Dissolved Oxygen DO200 DO500
Safety
- Never expose the meter in the explosive environment! Part of the shell case is
not airtight and the invasion of spark or the corrosion caused by the invasive gas
may cause explosion.
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- Please follow the operation manual and the laboratory safety regulations when
use the chemicals and solutions.
Safety precautions
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-Never split the shell case.
-Only the OEM maintenance staff is allowed to maintain the meter.
-Following environment effect should be avoided:
Violent vibration
Expose to sunlight for a long time
Atmospheric humidity more than 9596
Corrosive gas
Ambient temperature below than -10'C or more than 60'C
Strong electric or magnetic field
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