Hanna HI5421-02 Professional benchtop Dissolved Oxygen

Hanna HI5421-02 Professional benchtop Dissolved Oxygen

The Hanna HI5421-02 Professional benchtop Dissolved Oxygen is a high-precision benchtop dissolved oxygen (DO) meter designed for laboratories that require advanced performance and regulatory compliance. Featuring customizable display settings, advanced data logging capabilities, and integrated support for BOD, OUR, and SOUR measurements, the HI5421-02 is ideal for water quality professionals, researchers, and industrial process analysts.

Key Features

• Wide DO Range with Precision: Measures from 0.00 to 90.00 ppm (mg/L) or 0.0 to 600.0% saturation with ±1.5% accuracy, suitable for environmental and industrial applications.

• Automatic and User Calibration: Supports both automatic single- or two-point calibration as well as manual single-point calibration using user-defined standards.

• Temperature Compensation: Ensures accurate results across a wide range of operating temperatures (0.0 to 50.0 °C).

• Advanced Data Logging: Store up to 100 lots with a total of 100,000 data points; manual logging allows 5,000 samples per lot for robust record keeping.

• Built-In BOD/OUR/SOUR Calculations: Automatically calculates biological oxygen demand and oxygen uptake rates, with programmable limits and alerts.

• Customizable Display: Full-color graphic LCD with graphing capabilities, on-screen help, and adjustable color profiles for visual clarity.

• USB Connectivity: Opto-isolated USB port allows safe and easy data transfer to PC.

• AutoEnd Mode: DO stabilization detection feature simplifies measurements by automatically locking in readings.

• Complete Kit: Supplied with all necessary accessories including DO probe, electrode holder, electrolyte solution, membrane caps, power adapter, and documentation.

Specifications

Dissolved Oxygen (DO)

• Range: 0.00 to 90.00 ppm (mg/L); 0.0 to 600.0% saturation

• Resolution: 0.01 ppm; 0.1% saturation

• Accuracy: ±1.5% of reading ±1 digit

• Calibration:

  • Automatic: single-point or two-point (typically 0% and 100%)

  • Manual: user-defined single-point

• Temperature Compensation:

  • 0.0 to 50.0°C

  • 32.0 to 122.0°F

  • 237.1 to 323.1 K

• AutoEnd Mode: Available for DO measurements

Salinity Compensation

• Range:

  • 0.0 to 70.0%

  • 0.0 to 45.0 g/L

  • 0.0 to 42.0 PSU

Logging & Data Management

• Logging Type:

  • Up to 100 lots

  • Maximum 50,000 records per lot

  • Total 100,000 data points

  • Up to 5,000 samples per lot for manual logging

• GLP Compliance: Stores calibration history and timestamped records

• PC Connectivity: Opto-isolated USB port

Display & Interface

• Display: Color graphic LCD (240 x 340 px) with on-screen guidance, real-time graphing, and color customization

• Interface: 8-key capacitive touchpad

Physical & Electrical

• Dimensions: 160 x 231 x 94 mm (6.3 x 9.1 x 3.7 in)

• Weight: 1.2 to 1.5 kg (approx. 2.6 to 3.3 lbs)

• Power Supply: 12 VDC adapter (included)

Ordering Information

The HI5421-02 includes:

• HI76483 DO polarographic probe with built-in temperature sensor

• HI76404W electrode holder

• HI7041S electrolyte solution (30 mL)

• HI76483A DO membrane caps (2 pcs)

• 12 VDC power adapter

• Instrument quality certificate

• Instruction manual

Applications

• Environmental Monitoring: Reliable DO and BOD analysis for rivers, lakes, and wastewater.

• Industrial Process Control: Suitable for chemical, pharmaceutical, and food industries.

• Academic & Laboratory Research: Supports a wide range of experiments and regulatory compliance testing.

• Water and Wastewater Laboratories: Ideal for DO, BOD, OUR, and SOUR studies with high accuracy and logging capacity.