This document is an instruction manual for pH/mV/temperature bench meters, including the HI 120 and HI 122 models. It provides information on the calibration check function and usage instructions for the instruments. It also includes global contact information and warranty details.
The Hanna Instruments HI 120 and HI 122 are professional bench meters designed for measuring pH, ORP (Oxidation Reduction Potential), and Temperature. These instruments feature a Calibration Check function that performs diagnostic tests to detect potential accuracy issues. The HI 122 model includes an additional printing feature and supports up to five-point calibration with seven memorized buffers.
| Resolution (pH) | 0.001 pH |
|---|---|
| Power Supply | 12VDC Power Adapter |
Calibration Check performs a set of diagnostic tests during calibration using the history of electrode slope and offset to detect problems that can cause loss of accuracy.
The instruments support up to five-point calibration with seven memorized buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45 pH) and two custom buffers.
HI 120 and HI 122 are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions.