EC Range

0.00 to 29.99 μS/cm, 30.0 to 299.9 μS/cm, 300 to 2999 μS/cm, 3.00 to 29.99 mS/cm, 30.0 to 200.0 mS/cm, up to 500.0 mS/cm (absolute EC)**

EC Resolution

0.01 μS/cm, 0.1 μS/cm, 1 μS/cm, 0.01 mS/cm, 0.1 mS/cm

EC Accuracy (@25ºC/77ºF)

±1% of reading (±0.05 μS/cm or 1 digit, whichever is greater)

EC Calibration

automatic, one point with six memorized values (84, 1413, 5000, 12880, 80000, 111800 μS/cm)

TDS Range

0.00 to 14.99 ppm (mg/L), 15.0 to 149.9 ppm (mg/L), 150 to 1499 ppm (mg/L), 1.50 to 14.99 g/L, 15.0 to 100.0 g/L, up to 400.0 g/L (absolute TDS)**, with 0.80 conversion factor

TDS Resolution

0.01 ppm, 0.1 ppm, 1 ppm, 0.01 g/L, 0.1 g/L

TDS Accuracy (@25ºC/77ºF)

±1% of reading (±0.03 ppm or 1 digit, whichever is greater)

TDS Conversion Factor

0.40 to 0.80 (default value is 0.50)

Salinity Range

0.0 to 400.0% NaCl

Salinity Resolution

0.1% NaCl

Salinity Accuracy (@25ºC/77ºF)

±1% of reading

Salinity Calibration

one point, with HI7037 calibration solution (optional)

Temperature Accuracy

±0.4°C (±0.8°F) (excluding probe error)

Temperature Range

-20.0 to 120.0 ºC

Temperature Resolution

0.1 °C

Temperature Calibration

two point, at 0 and 50°C

Temperature Coefficient

selectable from 0.00 to 6.00%/°C (EC and TDS only)

Electrode/Probe

HI76310 platinum, four-ring conductivity/TDS probe with internal temperature sensor and 1 m (3.3’) cable (included)

Logging

500 samples, log-on-demand

Auto-off

after five minutes of non-use (can be disabled)

Connectivity

opto-isolated USB

Environment

0 to 50°C (32 to 122°F), RH max 95% non-condensing

Power Supply

12 VDC adapter (included)

Dimensions

235 x 222 x 109 mm (9.2 x 8.7 x 4.3”)

Weight

1.3 kg (2.9 lbs.)

Ordering Information

HI2300 is supplied with HI76310 conductivity probe, 12 VDC adapter, and instruction manual.

Notes

*Uncompensated conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation.