Instruction Manual HI 8731 Portable EC, TDS, Temperature Meter
The Hanna Instruments HI 8731 is a versatile, water-tight portable meter designed to measure Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature. It features an extended measurement range from 0 to 6000 µS/cm for EC and 0 to 3000 ppm for TDS, with temperature compensation fixed at a coefficient of 2%/°C.
| EC Range | 0 to 6000 µS/cm |
|---|---|
| TDS Range | 0 to 3000 ppm |
| Temperature Range | 0.0 to 70.0°C |
| EC Resolution | 10 µS/cm |
| TDS Resolution | 10 ppm |
| Temperature Resolution | 0.1°C |
| Battery Type | 1x9V alkaline |
| Dimensions | 164 x 76 x 45 mm |
The HI 8731 uses a fixed conversion factor of 0.5, meaning 1 µS/cm equals 0.5 ppm.
The meter operates for approximately 250 hours on one 9V alkaline battery.
Conductivity measurements are automatically compensated for temperature changes with a fixed coefficient of 2%/°C.