This document describes the specifications and features of the HI 99300 and HI 99301 portable instruments, including measurement ranges and resolutions for EC, TDS, temperature, automatic calibration and compensation, and warranty information for use and maintenance.
This document is the instruction manual for the Hanna Instruments HI 99300 and HI 99301 portable instruments. These devices are designed for measuring Electrical Conductivity (EC), Total Dissolved Solids (TDS), Temperature, and Salinity with advanced features including automatic temperature compensation.
| EC Range (HI 99300) | 0 to 3999 uS/cm |
|---|---|
| TDS Range (HI 99301) | 0.00 to 20.00 mS/cm |
| Temperature Range | 0.0 to 60.0°C / 32.0 to 140.0°F |
| Accuracy (EC/TDS) | +2% FS. |
| Probe Included | HI 76306 with built-in temperature sensor |
| Power Supply | 4 alkaline batteries, 1.5V AAA |
All Hanna Instruments meters are warranted for two years against defects in workmanship and materials.
Press and hold the MODE button until TEMP is displayed, then press SET/HOLD to toggle between °C and °F.
The manual recommends HI 7031 for EC and HI 7030 for TDS calibration.