Product Description

Hanna HI-2400 Benchtop Dissolved Oxygen Meter

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The HI-2400 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

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).

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.

GLP Data

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.

Data Logging

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

Data Transfer

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).

Specifications Hanna HI-2400 Benchtop Dissolved Oxygen Meter

SKU	HI2400-02
Product Name	Benchtop Dissolved Oxygen Meter – HI2400
Quote Required	Yes
Dissolved Oxygen Range	0.0 to 300.0% saturation, 0.00 to 45.00 mg/L (ppm)
Dissolved Oxygen Resolution	0.01 ppm (mg/L); 0.1% saturation
Dissolved Oxygen Accuracy	±1.5% FS
Dissolved Oxygen Calibration	one or two points at 0% (HI 7040 solution) and 100% (in air)
Dissolved Oxygen 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)
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 DO probe with 2 m (6.7′) cable (included)
Logging Memory	max 8000 samples
Logging Interval	5, 10, 30 seconds or 1, 2, 5, 10, 15, 30, 60, 120, 180 minutes
Connectivity	opto-isolated USB
GLP	yes
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.