pH meters with calibration check
The HI221 and HI223 pH meters compare the characteristics of the pH electrode from one calibration to the next. The Calibration Check feature alerts the user if parameters are not suitable for an accurate calibration.
The user is prompted to clean the electrode if required and is warned if the buffer has been contaminated. The electrode condition and response time are displayed on the meters' LCD.
Further features include calibration alarm time out, 'log-on-demand', last calibration date and data, instrument ID and PC interface.
The meters are supplied with HI1131P glass-body combination pH electrode with BNC connection + PIN and 1 m cable, HI7669/2W stainless steel temperature probe, HI76404 electrode holder, pH 4.01 and pH 7.01 calculation solutions, electrolyte solution, 12 VDC adapter and instruction manual.
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