Specifications HI98129 HI98130 pH Range 0.00 to 14.00 pH 0.00 to 14.00 pH Resolution 0.01 pH 0.01 pH Accuracy ±0.05 pH ±0.05 pH Conductivity Range 0 to 3999 µS/cm 0.00 to 20.00 mS/cm Resolution 1 µS/cm 0.01 mS/cm Accuracy ±2% F.S. ±2% F.S. TDS Range 0 to 2000 mg/L (ppm) 0.00 to 10.00 g/L (ppt) Resolution 1 ppm (mg/L) 0.01 ppt (g/L) Accuracy ±2% F.S. ±2% F.S. Temperature Range 0.0 to 60.0°C / 32.0 to 140.0°F 0.0 to 60.0°C / 32.0 to 140.0°F Resolution 0.1°C / 0.1°F 0.1°C / 0.1°F Accuracy ±0.5°C /±1°F ±0.5°C /±1°F Additional Specifications EC/TDS Calibration automatic, one point at 1413 µS/cm or 1382 ppm (mg/L) automatic, one point at 12.88 mS/cm or 6.44 ppt (g/L) pH Calibration automatic, one or two-point with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18) Temperature Compensation pH: automatic; EC/TDS: automatic with β adjustable from 0.0 to 2.4% / °C TDS Conversion Factor 0.45 to 1.00 pH Electrode HI73127 (replaceable; included) Environment 0 to 50°C (32 to 122°F); RH max 100% Battery Type / Life 1.5V (4) / approx. 100 hours of continuous use; auto-off after 8 minutes of non-use Dimensions / Weight 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) / 100 g (3.5 oz.) Ordering Information HI98129 (Combo) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, pH 4.01 buffer solution sachet, pH 7.01 buffer solution sachet, 1413 µS/cm conductivity standard sachet, 1382 ppm TDS standard sachet, pH electrode cleaning solution sachet, storage solution sachet, batteries, and instructions. HI98130 (Combo) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, pH 4.01 buffer solution sachet, pH 7.01 buffer solution sachet, 12880 µS/cm conductivity standard sachet, 6.44 ppt TDS standard sachet, pH electrode cleaning solution sachet, storage solution sachet, batteries, and instructions. Instability & ATC indicators Ensures reliable EC and TDS measurements. ATC symbol is shown when active. Standard or N.I.S.T buffer calibration Automatic calibration is performed with two sets of memorized buffers for greater accuracy. Adjustable temperature coefficient factor Users can choose between different factors (β) for precise temperature compensated measurements. HOLD function The HOLD function “freezes” the LCD display temporarily. On-screen battery life LCD indicates the percentage of battery power remaining upon startup. Adjustable TDS conversion factor For measurement accuracy, users can choose between a range of conductivity to TDS conversion factors. High accuracy EC/TDS graphite probe The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings. LCD Display Features pH solutions begin on page 2.158; EC and TDS solutions begin on page 5.34; see pH electrode specifications on page 1.70 Replaceable pH electrode cartridge The Combo features an easy-to-replace pH electrode. The sturdy, snap-in connector means there are no pins which could bend or break. 1 Testers and Monitors 1.9 www.hannainst.com | testers
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