Laboratory measuring instrument HI2400-01

dissolved oxygenbenchtopautomatic

The HI2400 is a durable benchtop dissolved oxygen and temperature meter that features a polarographic probe, one or two-point calibration, and a USB port for computer connectivity. This meter offers DO measurements in the mg/L (ppm) or percent saturation (%) range with compensation for temperature, altitude, and salinity. Features at-a-glance Two Measurement Modes - The HI2400 gives users the option to display DO readings in mg/L (ppm) or percent saturation (%). In meters that report DO concentration in ppm or mg/L, the solvent is always assumed to be water. In other solvents, the Henry’s Law constant would be different; in those cases, percent saturation should be used as it is incorrect to use ppm or mg/L.Percent saturation is the amount of DO present per amount of DO possible at a given temperature and pressure. Automatic Calibration – This meter can be calibrated at one or two points: 0% (zero calibration in a zero oxygen solution) and 100% (slope calibration in air). For an accurate calibration, it is recommended to wait for at least 15 minutes to ensure precise conditioning of the probe. Polarographic DO Probe – The HI76407/2 is a polarographic DO probe that has a silver anode and platinum cathode to determine DO concentration. The pre-tensioned, readymade PTFE membranes can be changed in a matter of seconds without the need to stretch and cut replacements. Automatic Temperature Compensation - A built-in temperature sensor on the HI76407/2 probe allows calibration and measurements to be automatically compensated for fluctuations in temperature. Temperature is compensated from 0.0 to 50.0°C (32.0 to 122.0°C).