Hanna HI9146-04 Microprocessor dissolved oxygen meter

Hanna HI9146-04 Microprocessor dissolved oxygen meter

The Hanna HI9146-04 Microprocessor dissolved oxygen meter is a highly accurate, microprocessor-based dissolved oxygen (DO) meter designed for field and laboratory use. With advanced features including automatic temperature, salinity, and altitude compensation, this instrument provides precise DO measurements in mg/L and % saturation. The rugged design and built-in backlit display make it ideal for demanding environmental and industrial applications.

Features

• High Accuracy DO Measurement
  Measures dissolved oxygen from 0.00 to 45.00 mg/L and 0.0 to 300.0% O₂ saturation, with 0.01 mg/L and 0.1% resolution for detailed water quality analysis.

• Automatic Compensation Functions
  Equipped with automatic temperature, salinity (0–80 g/L), and altitude (0–4000 m) compensation to ensure accurate results under varying environmental conditions.

• One or Two-Point Calibration
  Supports calibration at 0% (using HI-7040 zero oxygen solution) and 100% in air, ensuring precision across the full DO range.

• Polarographic DO Probe with Built-In Temperature Sensor
  Includes the HI76407/4F probe featuring a DIN connector, internal temperature sensor, and 4-meter cable—ideal for field deployments and submersion.

• Backlit Display and Compact Design
  The backlit LCD provides clear readings in low-light environments. The compact, lightweight build is perfect for fieldwork.

• Long Battery Life
  Operates with three 1.5V AAA batteries, lasting up to 200 hours (50 hours with backlight enabled).

Specifications

• DO Concentration Range:
  0.00 to 45.00 mg/L

• DO % Saturation Range:
  0.0 to 300.0%

• Temperature Range:
  0.0 to 50.0°C

• Resolution:
  DO: 0.01 mg/L
  % Saturation: 0.1%
  Temperature: 0.1°C

• Accuracy:
  DO: ±1.5% Full Scale
  % Saturation: ±1.5% Full Scale
  Temperature: ±0.2°C (excluding probe error)

• Calibration:
  One or two points (0% with HI-7040 solution and 100% in air)

• Temperature Compensation:
  Automatic, 0 to 50°C

• Altitude Compensation:
  0 to 4000 meters (resolution 100 m)

• Salinity Compensation:
  0 to 80 g/L (resolution 1 g/L)

• DO Probe:
  HI76407/4F polarographic probe with internal temperature sensor, DIN connector, and 4 m (13 ft) cable (included)

• Battery Type/Life:
  3 × 1.5V AAA batteries
  ~200 hours (50 hours with backlight)

• Operating Environment:
  0 to 50°C (32 to 122°F); up to 95% RH

• Dimensions:
  185 × 72 × 36 mm (7.3 × 2.8 × 1.4 in)

• Weight:
  300 g (0.66 lbs)

Applications

The HI9146-04 is ideal for:

• Environmental Field Testing – lakes, rivers, estuaries, and groundwater monitoring.

• Aquaculture & Fisheries – maintain optimal DO levels for aquatic life.

• Wastewater Treatment Plants – monitor aeration systems and effluent quality.

• Industrial Water Systems – test oxygen levels in process and boiler water.

• Research & Education – a reliable tool for laboratory studies in ecology and biology.