Hanna HI98301 Dist-1 10-1999 PPM ATC 1 PPM Resolution Pocket TDS Meter

DiST's are rugged and reliable pocket-sized testers that offer quick and accurate readings of conductivity or TDS. The DiST family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the printing industry. This tester features an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of 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 affect accuracy. The DiST's non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results. When calibration is necessary, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester. Range: 1999 ppm milligrams per liter. Resolution: 1 ppm milligrams per liter. Accuracy: +/-2 percent F.S. TDS Factor: 0.5. Calibration Solution: HI70442. Calibration: manual, 1 point. Probe: HI73301. Temperature Compensation: automatic, 0 to 50 degree C 32 to 122 degree F. Battery Type/Life: 1.5V 4/approximate 200 hours of continuous use. Environment: 0 to 50 degree C 32 to 122 degree F; RH max 95 percent. Weight: 3.4 oz. Measures 1-19/32" length by -57/64" width by 6-57/64" height.

help maintain consistent nutrient concentrations The DiST1 features a large LCD, a graphite sensor interface for greater accuracy, and an external temperature sensor This pen should be calibrated at least weekly to ensure accurate readings It is critical to use Hanna calibration solution to avoid problems