Hanna HI5421-01 Professional benchtop Dissolved Oxygen

Hanna HI5421-01 Professional benchtop Dissolved Oxygen

The Hanna HI5421-01 Professional benchtop Dissolved Oxygen is a high-performance benchtop dissolved oxygen (DO) meter designed for professional laboratory environments. It delivers superior accuracy, robust sensor technology, and intelligent features for precision DO, temperature, and barometric pressure measurements. Equipped with GLP data tracking and advanced calibration capabilities, this meter is ideal for BOD, OUR, and SOUR testing in research, water quality control, and industrial applications.

Key Features

• Wide DO Measurement Range: Measures from 0 to 90 ppm (mg/L) and 0 to 600% oxygen saturation, suitable for both freshwater and high-oxygen environments.

• High Accuracy & Resolution: ±1.5% of reading with a resolution of 0.01 ppm and 0.1% saturation for fine-grained control.

• Built-in Temperature and Pressure Compensation: Ensures precise DO readings under varying environmental conditions.

• Salinity Compensation: Automatically compensates for salinity from 0 to 70%, 0 to 45 g/L, or 0 to 42 PSU.

• Advanced Polarographic Probe: Supplied with a temperature-integrated polarographic sensor for real-time compensation and fast response.

• User-Friendly Interface: Features an 8-key capacitive touchpad and a vibrant 240 x 340-pixel color LCD screen for intuitive operation.

• Data Logging & GLP Compliance: Includes last calibration data and records calibration history to meet GLP standards.

• USB PC Connectivity: Opto-isolated USB interface for secure data transfer.

• Customizable Alarms: Set alarms for DO, BOD, OUR, and SOUR within defined thresholds.

• Backlight Saver and AutoEnd Mode: Efficient energy usage and DO stabilization detection for consistent readings.

Specifications

Dissolved Oxygen (DO)

• Range: 0 to 90 ppm (mg/L); 0 to 600% saturation

• Resolution: 0.01 ppm; 0.1% saturation

• Accuracy: ±1.5% of reading ±1 least significant digit

• Calibration: Automatic two-point (0% and 100% saturation) or single-point with user standard

• AutoEnd Mode: Available for DO measurements

• Alarm: Configurable for DO, BOD, OUR, and SOUR levels

Temperature

• Measurement Range:

  • -4 to 248°F

  • -20 to 120°C

  • 253.2 to 393.2 K

• DO Compensation Range:

  • 32 to 122°F

  • 0 to 50°C

  • 273.1 to 323.1 K

• Resolution: 0.1°F / 0.1°C / 0.1 K

• Accuracy: ±0.4°F / ±0.2°C / ±0.2 K

Barometric Pressure

• Range:

  • 450 to 850 mmHg

  • 600 to 1333 mBar

  • 60 to 133 kPa

  • 17 to 33 inHg

  • 8.7 to 16.4 psi

  • 0.592 to 1.118 atm

• Resolution: 1 mmHg / 1 mBar / 1 kPa / 1 inHg / 0.1 psi / 0.001 atm

• Accuracy: ±3 mmHg ±1 least significant digit

Salinity Compensation

• Range:

  • 0 to 70%

  • 0 to 45 g/L

  • 0 to 42 PSU

Display & Interface

• Display: 240 x 340 pixel color graphic LCD

• Keyboard: 8-key capacitive touch

• Interface: Opto-isolated USB port for PC connection

Physical & Power

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

• Weight: 1.2 kg (2.6 lbs)

Applications

• Environmental Laboratories: Ideal for precise DO analysis in research and regulation labs.

• Wastewater and Water Quality Testing: Supports BOD, OUR, and SOUR methods in compliance with environmental standards.

• Industrial Process Control: Monitors oxygen levels in production and quality assurance settings.

• Academic Research: Reliable instrument for advanced environmental