Benchtop Dissolved Oxygen Meter$459.00
The HI2400 is a durable and accurate benchtop meter that measures dissolved oxygen in mg/L (ppm) or percent saturation. DO measurements are automatically compensated for altitude (up to 4000 m) and salinity (up to 40 g/L) based on the user settings. The meter also offers automatic temperature compensation from the built-in temperature sensor of the supplied polarographic DO probe. This probe features easy to install screw cap membranes for quick replacement when readings become drifty or inaccurate. Calibration is performed at one or two points at 0% using Hanna's HI7040 solution or 100% in air. The HI2400 also provides users with GLP capabilities and PC connectivity via USB for a simple way to organize and manage their data.
- Automatic Temperature Compensation
- One or Two-Point Calibration
- Interval Logging up to 8000 Samples
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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.
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.
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).
Altitude and Salinity Compensation
When water is measured at an altitude below sea level, oxygen solubility increases; above sea level, the oxygen solubility decreases. The solubility of oxygen in water is also influenced by the amount of salt the water contains. Users can modify the values in order for the HI2400 to compensate for altitude and salinity during calibration and measurement.
The calibration data including date, time, standards used, and the values for temperature, altitude, and salinity can be accessed at any time by selecting the Good Laboratory Practice (GLP) display option.
The 8000 record logging interval allows the possibility of process and experimental monitoring of DO. The logging interval is automatic with user selectable intervals from 5 seconds to 180 minutes
With a built-in logging function, measurements are stored in non-volatile memory, and can be transferred to a PC through the USB port using the optional HI92000 software and HI920013 USB cable (both sold separately).
Specification Name Detail SKU HI2400-01 DO Range 0.0 to 300.0% saturation, 0.00 to 45.00 mg/L (ppm) DO Accuracy (@25˚C/77˚F) ±1.5% FS DO Resolution 0.01 ppm (mg/L); 0.1% saturation DO Calibration one or two points at 0% (HI 7040 solution) and 100% (in air) DO Temperature Compensation automatic from 0.0 to 50.0°C (32.0 to 122°F) Salinity Compensation 0 to 40 g/L (with 1 g/L resolution) DO Altitude Compensation 0 to 4000 m (with 100 m resolution) Temperature Range 0.0 to 50.0°C Temperature Resolution 0.1 °C Temperature Accuracy ±0.2°C (excluding probe error) DO Probe HI76407/2 polarographic DO probe with internal temperature sensor, DIN connector and 2 m (6.6’) cable (included) Power Supply 12 VDC adapter (included) Environment 0 to 50°C (32 to 122°F), RH max 95% Dimensions 235 x 222 x 109 mm (9.2 x 8.7 x 4.3”) Weight 1.3 kg (2.9 lbs) Ordering Information HI2400 is supplied with HI76407/2 dissolved oxygen probe, HI76407A membrane caps (2), HI7041S electrolyte solution (30 mL), 12 VDC adapter and instructions.* Special Notes *HI76408 Thinner DO Probe for Laboratories is compatible and available for separate purchase Warranty 2 years
- Product Manuals