Máy đo DO/áp suất khí quyển/nhiệt độ HANNA HI4421
  • Máy đo DO/áp suất khí quyển/nhiệt độ HANNA HI4421

Mã: HI4421

Đặt hàng


Dissolved Oxygen:

0.00 to 90.00 ppm; 0.0 to 600.0 % saturation


Barometric Pressure:

450 to 850 mmHg; 560 to 1133 mBar



-20.0 to 120.0°C; -4.0 to 248°F; 253.1 to 393.1 K


Dissolved Oxygen:

0.01 ppm; 0.1% saturation


Barometric Pressure

1 mm Hg





Dissolved Oxygen:

±1.5% of reading ±1 digit


Barometric Pressure:

±3 mm Hg + 1 least significant digit

Measurement Modes:


direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate)


Dissolved Oxygen:

automatic/user standard, one or two points


Barometric Pressure:

single point

Temperature Compensation:


0.0 to 50.0°C; 32.0 to 122.0°F; 237.1 to 323.1 K

Salinity Compensation:


0 to 45 g/L (ppt)



thin body, polarographic dissolved oxygen probe with internal temperature sensor and 1 m (3.3’) cable (included)


Record Samples:

up to 100 lots; 10,000 samples/lot for automatic logging; 5000 samples/lot for manual logging


Logging Interval:

from one second and up



manual, automatic

GLP Features:


yes (last calibration data, calibration info)

Alarm (DO, BOD, OUR, SOUR):


inside and outside limits

PC Connection:


opto-isolated USB and RS232



graphic color LCD with on-screen help, graphing, language selection and custom configuration

Power Supply:


12 VDC adapter (included)



160 x 231 x 94 mm (6.3 x 9.1 x 3.7”)



1.2 Kg (2.6 lbs.)


  • Extended DO range up to 90 ppm (mg/L) and 600%

  • Measures DO, atmospheric pressure and temperature

  • DO direct, DO direct/autohold, BOD: Biological Oxygen Demand, OUR: Oxygen Uptake Rate, SOUR: Specific Oxygen Uptake Rate

  • Temperature and atmospheric pressure automatic compensation

  • Manual salinity compensation

  • Fully customizable

  • Large log memory using different logging methods

  • Polarographic probe with built-in temperature sensor


Xuất xứ: Hanna 

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