Specifications HI983024 HI983044 TDS Range 0.00 to 10.00 ppt (g/L) — Resolution 0.01 ppt (g/L) — Accuracy (@25°C/77°F) ±2% F.S. — TDS Factor 0.5 — EC Range — 0.00 to 20.00 mS/cm Resolution — 0.01 mS/cm Accuracy (@25°C/77°F) — ±2% F.S. Temperature Range 0.0 to 50.0°C/32.0 to 122.0°F Resolution 0.1°C / 0.1°F Accuracy (@25°C/77°F) ±0.5°C / ±1.0°F Additional Specifications Calibration Solution HI70038: 6.44 ppt HI70030: 12.88 mS/cm Calibration automatic, one-point Temperature Compensation automatic from 0 to 50°C (32 to 122°F) Battery Type / Life CR2032 3V Li-ion / approx. 250 hours of continuous use Environment 0 to 50°C (32 to 122°F); RH 100% max Dimensions 160 x 40 x 17 mm (6.3 x 1.6 x 0.7’’) Weight 75 g (2.6 oz.) Ordering Information HI983024 is supplied with CR2032 battery, 6.44 ppt calibration solution sachet (4), storage/protection sleeve, instruction manual, and quality certificate. HI983044 is supplied with CR2032 battery, 12.88 mS/cm calibration solution sachet (4), storage/protection sleeve, instruction manual, and quality certificate. HI983024 • HI983044 TDS and EC Testers • Waterproof • Automatic temperature compensation (ATC) • Automatic one-point calibration • Measurement stability indicator • Temperature measurement The Pool Line HI983024 (TDS) and HI983044 (EC) are ideal for monitoring pools and spas. These Pool Line testers feature an amperometric graphite electrode that provides improved repeatability in measurements, since it does not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R, where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface, which will directly affect accuracy. The non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is needed, simply submerge the electrode tip into calibration solution and the meter will auto calibrate. EC and TDS solutions begin on page 5.34 1 Testers and Monitors 1.48 | www.hannainst.com testers
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