Hanna Instruments Portable Dissolved Oxygen (DO) Meter, Polarographic Sensor, Supplied with Probe(HI76407/4F), 4m Probe Cable, Screw Cap Membranes(HI76407A), Electrolyte solution 30 mL(HI7041S), Batteries and Instructions with Waterproof Carrying Case, HI9146-04

Part Number : HI9146-04

Brand :
Hanna Instruments

The Hanna HI9146-04 is a robust, waterproof portable dissolved oxygen meter equipped with a polarographic sensor and a 4-meter HI76407/4F probe. It features automatic temperature, salinity, and altitude compensation, and includes screw cap membranes, electrolyte solution, batteries, and a durable carrying case for reliable field and laboratory use.

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KWD 224.000

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Description

The Hanna HI9146-04 is a high-performance, portable dissolved oxygen (DO) meter engineered to deliver reliable and accurate oxygen concentration measurements in demanding environmental and industrial settings. Built with a durable waterproof casing, the meter utilizes advanced polarographic sensing based on the Ross and Clark method, employing a platinum cathode and silver anode with a replaceable PTFE membrane cap for prolonged use. This model features automatic temperature compensation, altitude and salinity compensation, and GLP functions, ensuring consistent results in variable conditions. The auto-endpoint function enhances measurement consistency, while the backlit LCD display improves visibility in low-light environments. The HI9146-04 is supplied complete with: • HI76407/4F probe (4 m cable) • HI76407A membranes (x2) • HI7041S electrolyte solution (30 mL) • Batteries, instructions, and a rugged waterproof carrying case This device is an ideal solution for professionals working in aquaculture, wastewater treatment, field testing, and laboratory environments, offering portability, accuracy, and convenience.

Ordering Information

HI9146-04 is supplied complete with HI76407/4F probe with 4 m (13.1’) cable, HI76407A membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.

HI9146-10 is supplied complete with HI76407/10F probe with 10 m (32.8’) cable, HI76407A membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.

Features

• Polarographic Measuring System - The oxygen meter and probe use polarographic sensor technology based on the Ross and Clark polarographic measurement method. The probe is comprised of a platinum cathode and silver anode in an electrolyte solution held in place over the surfaces of the electrodes by a polymer membrane. An external voltage applied across the system establishes a current proportional to the concentration of dissolved oxygen.

• Replaceable Membrane Caps - The pretensioned thin polytetrafluoroethylene (PTFE) membranes employ a screw cap design that can be changed quickly by simply filling with the HI7041 electrolyte fill solution and screw on the DO probe.

• Automatic Calibration - Calibration can be performed at one or two points to 100% and/or 0% saturation. The 100% saturation is done in air while the 0% is done with the HI7040 bicomponent zero oxygen solution.

• Good Laboratory Practice (GLP) - The Good Laboratory Practice feature allows the user to recall calibration information including date, time and calibrations points.

• Automatic Temperature Compensation - All readings are automatically compensated for temperature variations with a high accuracy, built-in linearized thermistor temperature sensor behind a stainless steel cover.

• Altitude Compensation - The HI9146 allows for altitude compensation for up to 4000 meters with a 100-meter resolution.

• Salinity Compensation - Salinity compensation is adjustable from 0 to 80 g/L (ppt) with a 1 g/L resolution for the measurement of DO in brackish and sea water.

• Auto End Point - The HI9146 features an auto endpoint mode in which, when selected, the reading will freeze on the display once a stable measurement is obtained. The auto-end feature allows for consistency among various users by ensuring that stability has been achieved before recording a measurement.

• Backlit LCD - The HI9146 dissolved oxygen meter has a display with a backlight for easy viewing of readings in poor lighting conditions.

• Battery Error Prevention System (BEPS) - The Battery Error Prevention System detects when the batteries become too weak to ensure reliable measurements. The backlight feature is automatically disabled when batteries are getting low and a clear indication is displayed to warn the user of this condition.

Applications

• Aquaculture Monitoring – Ensures optimal dissolved oxygen levels in fish and shrimp farms, promoting healthy growth and preventing stress-related issues.

• Wastewater Treatment Plants – Monitors DO during aeration and biological treatment processes to ensure efficiency and compliance with environmental standards.

• Environmental Field Testing – Ideal for measuring DO in lakes, rivers, and groundwater during field surveys and ecological studies.

• Industrial Water Quality Control – Maintains required DO levels in process water systems to prevent corrosion, scaling, and microbial growth.

• Aquariums and Marine Research – Used for monitoring DO in aquariums and marine biology research to support aquatic life and controlled habitat studies.

• Wine and Beverage Industry – Helps monitor and control oxygen content during production and bottling, reducing the risk of oxidation and spoilage.

• Educational and Research Laboratories – Perfect for teaching DO analysis and conducting research in environmental science and chemistry labs.

Downloads

Datasheet HI9146-04.pdf

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Instruction Manual HI9146.pdf

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Specifications

Temperature Range
0.0 to 50.0°C / 32.0 to 122.0°F
Temperature Resolution
0.1°C / 0.1°F
Temperature Accuracy @ 25°C / 77°F
±0.2°C
Do Range
0.00 to 45.00 ppm (mg/L), 0.0 to 300.0% saturation
DO Resolution
0.01 ppm (mg/L)
DO Accuracy (@25°C/77°F)
±1.5% F.S. or ±1 digit, whichever is greater
Temperature Compensation
automatic from 0 to 50°C (32 to 122°F)
Power Supply
1.5V (3) AAA batteries
Power Consumption
approximately 200 hours (50 hours with backlight)
Environment
0 to 50°C (32 to 122°F)
Dimensions
185 x 72 x 36 mm (7.3 x 2.8 x 1.4 in.)
Weight
300 g (10.6 oz.)
Ordering Information
Includes HI76407/4F DO probe, HI76407A membranes (2), HI7041S electrolyte (30 mL), batteries, instructions, carrying case
Warranty
2 years
Recommended Probe
HI76407 polarographic DO probe, internal temperature sensor, DIN connector

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