Geneq > Biotechnology > pH Meters - Field
Waterproof pH/EC/TDS/Temperature Meter with Advanced Features
Model HI991300/HI991301


Features

HANNA instruments offers you a choice of 2 meters to meet your exacting requirements. HI 991300 and HI 991301 offer you the combination of pH, electro-conductivity, total dissolved solids and temperature measurements. To increase precision, you can select the meter which will work best with your range of conductivity, from purified to brackish waters.
There are only 2 buttons, yet you can select from a range of calibration buffers and even the temperature scale (°C or °F) most familiar to you.
Other user selectable features include different TDS factors from 0.45 to 1.00, and a range of temperature coefficients (β) from 0.0 to 2.4% for greater consistency and reproducibility. Also selectable are standardized buffer recognition values.
To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the probe.


Specifications HI 991300
Range
pH 0.00 to 14.00 pH
EC 0 to 3999 μS/cm
TDS 0 to 2000 ppm (mg/L)
Temperature 0.0 to 60.0°C (32.0 to 140.0°F)
Resolution
pH 0.01 pH
EC 1 μS/cm
TDS 1 ppm
Temperature 0.1°C (0.1°F)
Accuracy (@20°C/68°F)
pH ±0.01 pH
EC ±2% F.S.
TDS ±2% F.S.
Temperature ±0.5°C (±1.0°F)
TDS Conversion Factor selectable 0.45 to 1.00 with 0.01 increments (default 0.50)
pH Calibration automatic at 1 or 2 points with 2 sets of memorized standard buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18)
EC/TDS Calibration automatic, 1 point at 1382 ppm (CONV 0.5) or at 1500 ppm (CONV 0.7) or at 1413 μS/cm (others)
Temperature pH automatic
Compensation EC/TDS automatic with selectable β from 0.0 to 2.4%/°C with 0.1 increments
Probe HI 1288, pH/EC/TDS/T, DIN connector, 1 m (3.3’) cable (included)
Battery type / Life 4 x 1.5V AAA / approximately 500 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions / Weight 150 x 80 x 36 mm (5.9 x 3.1 x 1.4”) / 210g (7.4 oz.)

Specifications HI 991301
Range
pH 0.00 to 14.00 pH
EC 0.00 to 20.00 mS/cm
TDS 0.00 to 10.00 ppt (g/L)
Temperature 0.0 to 60.0°C (32.0 to 140.0°F)
Resolution
pH 0.01 pH
EC 0.01 mS/cm
TDS 0.01 ppt
Temperature 0.1°C (0.1°F)
Accuracy (@20°C/68°F)
pH ±0.01 pH
EC ±2% F.S.
TDS ±2% F.S.
Temperature ±0.5°C (±1.0°F)
TDS Conversion Factor selectable 0.45 to 1.00 with 0.01 increments (default 0.50)
pH Calibration automatic at 1 or 2 points with 2 sets of memorized standard buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18)
EC/TDS Calibration automatic, 1 point at 6.44 ppt (CONV 0.5) or at 9.02 ppt (CONV 0.7) or at 12880 μS/cm (others)
Temperature pH automatic
Compensation EC/TDS automatic with selectable β from 0.0 to 2.4%/°C with 0.1 increments
Probe HI 1288, pH/EC/TDS/T, DIN connector, 1 m (3.3’) cable (included)
Battery type / Life 4 x 1.5V AAA / approximately 500 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions / Weight 150 x 80 x 36 mm (5.9 x 3.1 x 1.4”) / 210g (7.4 oz.)