Hanna Instruments is proud to introduce the world’s most innovative pH meter: edge ®.
edge’s groundbreaking design is the culmination of Hanna’s vision, design capabilities, integrated production and world class R&D. edge is a single meter that can measure pH, Conductivity, and Dissolved Oxygen and is incredibly easy to use. We put a lot of thought into edge’s ease of use.
pH Specifications
| pH Range | -2.000 to 16.000 pH, -2.00 to 16.00 pH, ±1000 mV |
| pH Resolution | 0.001 pH, 0.01 pH, 0.1 mV |
| pH Accuracy (@25ºC/77ºF) | ±0.2 mV, ±0.01 pH, ±0.002 pH |
| pH Calibration | up to 5 points |
| pH Calibration Buffers | 1.68, 10.01, 12.45, 4.01, 6.86, 7.01, 9.18, two custom buffers |
| pH Temperature Compensation | ATC: -5.0 to 100.0ºC; 23.0 to 212.0°F* |
| 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 Temperature Compensation | ATC (0.0 to 100.0ºC; 32.0 to 212.0 °F), NoTC |
| 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 Calibration | through EC calibration |
| TDS Conversion Factor | 0.40 to 0.80 |
| Salinity Range | 0.0 to 400.0% NaCl, 2.00 to 42.00 PSU, 0.01 to 42.00 PSU, 0.0 to 80.0 g/L* |
| Salinity Resolution | 0.1% NaCl, 0.01 PSU, 0.01 g/L |
| Salinity Accuracy (@25ºC/77ºF) | ±1% of reading |
| DO Range | 0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation |
| DO Resolution | 0.01 ppm, 0.1% saturation |
| DO Accuracy | ±1 digit, ±1.5% of reading |
| DO Calibration | one or two points at 0% (HI 7040 solution) and 100% (in air) |
| DO Temperature Compensation | ATC: 0 to 50 ºC; 32.0 to 122.0 °F |
| Salinity Compenstaion | 0 to 40 g/L (with 1 g/L resolution) |
| DO Altitude Compensation | -500 to 4000 m (with 100 m resolution) |
| Temperature Range | -20.0 to 120.0 ºC, -4.0 to 248.0 °F |
| Temperature Resolution | 0.1 °C, 0.1 °F |
| Temperature Accuracy | ±0.5 °C, ±1.0 °F |
| pH Electrode Diagnostics | Glass and reference junction diagnostics ( HI 11311 & HI 12301 only), out of calibration range , probe condition, response time |
| Logging | 600 records interval logging, stores up to 1000 records: 200 records (log-on-demand and stability logging) |
| Connectivity | 1 micro USB port for charging and PC connectivity, 1 USB port for storage |
| Environment | 0 to 50°C (32 to 122°F), RH max 95% non-condensing |
| Power Supply | 5 VDC adapter (included) |
| Dimensions | 202 x 140 x 12.7mm (8” x 5.5” x 0.5”) |
| Ordering Information | HI2040 DO kit includes: HI764080 Dissolved Oxygen electrode, HI7041S Refill electrolyte solution, 2 DO membrane caps, 2 DO membrane cap o-rings and Quality certificate. |
| Warranty | 2 years (probe 6 months) |
| Notes |
* temperature limits will be reduced to actual probe/sensor limits |
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