Specifications HI991300 HI991301 pH Range* -2.00 to 16.00 pH / -2.0 to 16.0 pH -2.00 to 16.00 pH / -2.0 to 16.0 pH Resolution 0.01 pH / 0.1 pH 0.01 pH / 0.1 pH Accuracy (@25°C/77°F) ±0.02 pH / ±0.1 pH ±0.02 pH / ±0.1 pH Calibration automatic, 1 or 2 points choose between 2 sets of buffers (standard: 4.01; 7.01; 10.01 or NIST: 4.01; 6.86; 9.18) automatic, 1 or 2 points choose between 2 sets of buffers (standard: 4.01; 7.01; 10.01 or NIST: 4.01; 6.86; 9.18) pH-mV Range ±825 mV ±825 mV Resolution 1 mV 1 mV Accuracy (@25°C/77°F) ±1 mV ±1 mV EC Range 0 to 3999 μS/cm** 0.00 to 20.00 mS/cm** Resolution 1 μS/cm 0.01 mS/cm Accuracy (@25°C/77°F) ±2% F.S. ±2% F.S. TDS Range 0 to 2000 ppm (mg/L) 0.00 to 10.00 ppt (g/L) Resolution 1 ppm (mg/L) 0.01 ppt (g/L) Accuracy (@25°C/77°F) ±2% F.S. ±2% F.S. Temperature Range* -5.0 to 105.0°C / 23.0 to 221.0°F -5.0 to 105.0°C / 23.0 to 221.0°F Resolution 0.1°C/0.1°F 0.1°C/0.1°F Accuracy (@25°C/77°F) ±0.5°C / ±1.0°F ±0.5°C / ±1.0°F EC/TDS Calibration automatic, one point at: 1413 µS/cm or 1382 ppm (CONV=0.5) or 1500 ppm(CONV=0.7) automatic, one point at: 12880 µS/cm or 6.44 ppt (CONV=0.5) or 9.02 ppt (CONV=0.7) pH Temp. Compensaiton automatic automatic EC/TDS Temperature Compenation automatic with ȕ selectable from 0.0-2.4%/°C with 0.1 increments TDS Conversion Factor selectable from 0.45 to 1.00 with 0.01 increments Probe (included) HI12883 pH/EC/TDS/temperature sensor, DIN connector and 1 m (3.3’) cable Battery Type/Life 1.5V AAA (3) /approx. 600 hours of continuous use Auto-off user selectable: after 8 min, 60 min or disabled Environment 0 to 50°C (32 to 122°F); RH max. 100% Meter Dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”) Meter Mass (with batteries) 196 g (6.91 oz.) Casing Ingress Protection Rating IP67 Ordering Information HI991300 is supplied with HI12883 pH/EC/TDS probe with built-in temperature sensor, DIN connector and 1m (3.3’) cable, pH 4.01 and 7.01 buffer sachets, HI70031 1413 μS/cm and HI70032 1382 ppm calibration solution sachets, HI700601 Electrode cleaning solution sachets (2), 100 mL beaker, 1.5V AAA batteries (3), calibration certificate of meter, calibration certificate of probe, instruction manual and HI710142 rugged carrying case. HI991301 is supplied with HI12883 pH/EC/TDS probe with built-in temperature sensor, DIN connector and 1m (3.3’) cable, pH 4.01 and 7.01 buffer sachets, HI70030 12880 μS/cm and HI70038 6.44 ppt calibration solution sachets, HI700601 electrode cleaning solution sachets (2), 100 mL beaker, 1.5V AAA batteries (3), calibration certificate of meter, calibration certificate of probe, instruction manual and HI710142 rugged carrying case. HI12883 ampli¯ed pH electrode • 3 sensors in a single probe • Pre-amplified pH electrode for resistance to electrical noise • Extractable cloth junction to clear any clogging • Graphite EC/TDS sensor The HI991301 and HI991300 are supplied with an ampli¯ed polypropylene body pH/EC/ TDS/temperature probe. The built in ampli¯er will reduce the eects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include recti¯ers, motors and ballasts. The HI12883 pH electrode also features an extractable cloth junction. Every pH electrode has a junction. Many use a single ceramic frit which acts as a barrier between the inside reference cell to the outside sample. This barrier allows for a diusion electrolyte that is necessary for the pH measurement. Any clogging of the junction will result in a reduced diusion and as a result the readings will become erratic. Most probes will have to have this junction cleaned and if not possible then the probe has to be replaced. The extractable cloth junction of the HI12883 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode. The EC/TDS sensor is made of graphite. A common problem with amperometric sensors is a polarization eect. With amperometric sensors there are two poles in which a voltage is alternated. The positive and negative ions in the solution migrate to one of the negative or positive poles. When the charges build up on one of these poles a polarization eect occurs. Having a conductivity sensor made of graphite reduces the polarization eect. pH solutions begin on page 2.164; EC and TDS solutions begin on page 5.34; See page7.86 for probe specifications * the pH range is limited from 0 to 13 pH and the temperature range from 0 to 50°C (32 to 122°F) using HI12883 probe ** displays μS for μS/cm ** displays mS for mS/cm 7 Multiparameter 7.79 www.hannainst.com | portable
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