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Laboratory Research Grade Benchtop Dissolved Oxygen and BOD Meter

Brand: Hanna Instruments
Product code: HI5421-02
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DO Specifications

DO Range 0.00 to 90.00 ppm (mg/L); 0.0 to 600.0 % saturation
DO Resolution 0.01 ppm (mg/L); 0.1% saturation
DO Accuracy ±1.5% of reading ±1 digit
DO Calibration automatic using single or two-point calibration; user calibration single point
DO Temperature Compensation 0.0 to 50.0 °C; 32.0 to 122.0 °F; 237.1 to 323.1 K
Salinity Compenstaion 0 to 45 ppt

Barometric Pressure Specifications

Barometric Pressure Range 450 to 850 mmHg; 560 to 1133 mBar (additional units available (kPa, mHg, psi, atm))
Barometric Pressure Resolution 1 mm Hg
Barometric Pressure Accuracy ±3 mm Hg + 1 least significant digit

Temperature Specifications

Temperature Range -20.0 to 120.0 ºC**; -4.0 to 248.0 ºF**; 253.15 to 393.15 K**
Temperature Resolution 0.1 °C, 0.1 °F, 0.1 K
Temperature Accuracy ±0.2 °C; ±0.4 °F; ±0.2 K (without probe)

Additional Specifications

Electrode/Probe HI76483 thin body, polarographic dissolved oxygen probe with internal temperature sensor and 1 m (3.3’) cable (included)
Measurement Modes direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate)
GLP calibration data including date, time, and calibration points
Logging record: 100,000 data point storage, 100 lots with 50,000 records/lot; interval: settable between 1 second and 180 minutes max log time; type: automatic, manual, AutoHold
Display color graphic LCD with on-screen help, graphing, and custom color configuration
Connectivity USB
Environment 0 to 50°C (32 to 122°F; 273 to 323 K), RH max 95% non-condensing
Power Supply 12 VDC adapter (included)
Dimensions 160 x 231 x 94 mm (6.3 x 9.1 x 3.7”)
Weight 1.2 kg (2.64 lbs.)
Ordering Information HI5421 is supplied with HI76483 DO probe, HI76404W electrode holder, HI7041S electrolyte solution (30 mL), HI76483A DO membrane caps (2), 12 VDC adapter, instrument quality certificate and instruction manual
Warranty 2 years (probe 6 months)
Notes **Reduced to actual probe limits

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