This manual introduces the features and characteristics of HI 2221 and HI 2223 pH/mV/ºC Bench Meters with Calibration Check.
The document serves as a comprehensive instruction manual for the Hanna Instruments HI 2221 and HI 2223 pH/mV/ºC Bench Meters. It covers preliminary examination, functional descriptions of the front and rear panels, and detailed specifications for both models. Key features include Calibration Check technology to detect electrode problems and enhanced calibration messages. This manual is written in Chinese.
The instruments are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions.
The electrodes and the probes are guaranteed for a period of six months.
Both meters support up to five pH point calibration.