| EC Range |
0.000 to 9.999 μS/cm 10.00 to 99.99 μS/cm 100.0 to 999.9 μS/cm 1.000 to 9.999 mS/cm 10.00 to 99.99 mS/cm 100.0 to 1000.0 mS/cm |
| EC Resolution |
0.001 μS/cm 0.01 μS/cm 0.1 μS/cm 0.001 mS/cm 0.01 mS/cm 0.1 mS/cm |
| EC Accuracy |
±1 % of reading (±0.01 μS/cm) |
| EC Calibration |
automatic standard recognition (84.00 µS/cm, 1.413 mS/cm, 5.000 mS/cm, 12.88 mS/cm, 80.00 mS/cm, 111.8 mS/cm) or user standard single point or multi-point calibration |
| TDS Range |
0.000 to 9.999 ppm 10.00 to 99.99 ppm 100.0 to 999.9 ppm 1.000 to 9.999 ppt 10.00 to 99.99 ppt 100.0 to 400.0 ppt actual TDS (with 1.00 factor) |
| TDS Resolution |
0.001 ppm 0.01 ppm 0.1 ppm 0.001 ppt 0.01 ppt 0.1 ppt |
| TDS Accuracy |
±1 % of reading (±0.01 ppm) |
| Resistivity Range |
1.0 to 99.9 Ω·cm 100 to 999 Ω·cm 1.00 to 9.99 KΩ·cm 10.0 to 99.9 KΩ·cm 100 to 999 KΩ·cm 1.00 to 9.99 MΩ·cm 10.0 to 100.0 MΩ·cm |
| Resistivity Resolution |
0.1 Ω·cm 1 Ω·cm 0.01 KΩ·cm 0.1 KΩ·cm 1 KΩ·cm 0.01 MΩ·cm 0.1 MΩ·cm |
| Resistivity Accuracy |
±1 % of reading (±1 Ω·cm) |
| Salinity Range |
0.00 to 42.00 PSU – Practical Scale 0.00 to 80.00 ppt – Natural Sea Water 0.0 to 400.0 % – Percent Scale |
| Salinity Resolution |
0.01 for Practical Scale / Natural Sea Water 0.1 % for Percent Scale |
| Salinity Accuracy |
±1 % of reading |
| Salinity Calibration |
1 point for Percent Scale |
| Temperature Range |
−20.0 to 120.0 °C −4.0 to 248.0 °F 253.0 to 393.0 K |
| Temperature Resolution |
0.1 °C 0.1 °F 0.1 K |
| Temperature Accuracy |
±0.2 °C ±0.4 °F ±0.2 K |
| EC/TDS Probe |
HI7631233 four-ring conductivity/ resistivity/TDS/salinity probe |
| Power Supply |
DC adapter 100-240AC to 24VDC 2.5A |
| Environment |
0 – 50 °C / 32 – 122 °F / 273 – 323 K maximum 95% RH non-condensing |
| Dimensions |
205 x 160 x 77 mm (8.0 x 6.2 x 3.0) |
| Weight |
Approximately 1.2 kg (26.5 lbs.) |
| Ordering Information |
HI6321 is supplied with HI7631233 probe HI764060 electrode holder capillary pipette 24 VDC power adapter USB-C to USB-A cable probe quality certificate quick reference guide with instrument quality certificate |
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