Hanna Instruments

HI-5421 Research Grade Dissolved Oxygen (DO) & Biological Oxygen Demand (BOD) Bench Meter

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  • Extended DO range up to 90ppm (mg/L) and 600%
  • Three salinity scales: practical salinity, natural seawater, percent
  • Measures DO, atmospheric pressure & temperature
  • Manual salinity compensation
  • Temperature and atmospheric pressure automatic compensation
  • Large log memory with different logging methods
  • Polarographic probe with built-in temperature sensor
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Hanna HI-5421 is a research-grade benchtop meter with extensive capabilities in measuring Dissolved Oxygen (DO) as well as Biological Oxygen Demand (BOD), Oxygen Uptake Rate (OUR), Specific Oxygen Uptake Rate (SOUR) and atmospheric pressure and temperature. This is a highly advanced instrument featuring an intuitive menu system to streamline the workflow process and provide accurate measurements quickly and efficiently. Ideal for university research, pharmaceutical research & development, food and drink including wine analysis and water pollution control.

Benefits

  • Extended DO range up to 90ppm (mg/L) and 600%
  • Three salinity scales: practical salinity, natural seawater, percent
  • Measures DO, atmospheric pressure & temperature
  • Manual salinity compensation
  • Temperature and atmospheric pressure automatic compensation
  • Large log memory with different logging methods
  • Polarographic probe with built-in temperature sensor

The HI-5421 can be used to perform a full range of DO, BOD, OUR and SOUR measurements together with atmospheric pressure and temperature. The DO probe uses the polarographic principle of measurement and has a built-in temperature sensor.

The BOD, OUR and SOUR methods are supported with a dedicated tutorial and step by step guide to ensure a full and correct reading of DO using this specific measuring method.

Three selectable logging modes are available: Automatic, Manual and AutoHold logging. Up to 100 logging lots can be stored for automatic or manual modes. Automatic logging also features a selectable area and sampling period. GLP informatics includes complete data about user calibration of each parameter and identification information for the instrument, user and company.

Data can be transferred to a PC via the optoisolated PC interface via the RS232 or USB ports and HI-92000 Windows compatible software. All features are available in English, Italian, Portuguese and Spanish. Contextual help is available through a dedicated HELP key with clear tutorial messages and directions available on-screen. This guides users quickly and clearly through the procedures to facilitate accurate measurement and calibration.

Supplied with

  • HI-76483 DO probe
  • HI-76404N electrode holder
  • HI-7041S electrolyte solution (30mL)
  • DO membrane caps (2)
  • 12 VDC adapter
  • Quality certificate
  • Instruction manual

Specifications

DO - Range 0.00 to 90.00 ppm; 0.0 to 600.0% saturation
 Resolution 0.01 ppm; 0.1% saturation
 Accuracy ±1.5% of reading ±1 digit
 Calibration automatic using single or two-point calibration; user calibration single point
Barometric Pressure - Range 450 to 850 mmHg; 560 to 1133 mBar (additional units available (kPa, mHg, psi, atm))
 Resolution 1 mm Hg
 Accuracy ±3 mmHg within + 1 least significant digit
 Calibration single point calibration
Temperature - Range -20.0 to 120℃
 Resolution 0.1℃
  Accuracy ±0.2℃ (without probe)
Measurement Modes Direct D.O.; BOD (Biochemical Oxygen Demand); OUR (Oxygen Uptake Rate); SOUR (Specific Oxygen Uptake Rate)
Temperature Compensation 0.0 to 50.0℃
Salinity Compensation 0 to 45 g/L (ppt), % or PSU
Probe HI-76483 thin body, polarographic dissolved oxygen probe with internal temperature sensor and 1m cable (included)
Logging - Record samples 100,000 records storage, 100 lots each for automatic and manual logs; maximum 50,000 records/log for automatic logging
 Logging interval fourteen intervals available from 1 second to 180 minutes/interval
 Type Manual AutoHOLD, automatic
Alarm (DO, BOD, OUR, SOUR) inside and outside limits
PC Connection opto-isolated USB
Display graphic colour LCD with on-screen help, graphing, language selection and custom configuration
Power Supply 12 VDC adapter (included)
Dimensions/Weight 160 x 231 x 94 mm/ 1.2 kg
HI-5421

Data sheet

Industries
Life Science
Scientific Industries

Our standard delivery is 3-5 working days (where products are available) Monday to Friday, excluding public holidays when you order by 2pm. Details of our returns and cancellation policy can be found in our Returns Policy & Section 11 of our Terms and Conditions. For more information please contact us on 01924 444 577 or Email Us.

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