Hanna Instruments HI 4222 Thermometer User Manual


 
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RECOMMENDATIONS FOR USERS
Before using these products, make sure they are entirely suitable for the environment in which they are used.
Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV
equipment, requiring the operator to follow all necessary steps to correct interferences.
The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass
bulb at all times.
During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic
discharges.
Any variation introduced by the user to the supplied equipment may degrade the instruments’ EMC
performance.
To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed
24 Vac or 60 Vdc.
To avoid damage or burns, do not perform any measurement in microwave ovens.
Hanna Instruments reserves the right to modify the design, construction and appearance
of its products without advance notice.