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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 Specifications
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 Specifications
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 Specifications
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 Specifications
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 Specifications
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
Additional Specifications
pH Electrode Diagnostics: Glass and reference junction diagnostics ( HI 11311 & HI 12301 only), out of calibration range , probe condition, response time
Logging : up to 1000 records organized in: Manual log-on-demand (Max. 200 logs), Manual log-on-stability (Max. 200 logs), Interval logging (Max. 600 samples; 100 lots)
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.
Notes
* temperature limits will be reduced to actual probe/sensor limits
** with temperature compensation function disabled
