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Hanna Instruments Advanced Dissolved Oxygen Benchtop Meter, HI6421-01

Part Number : HI6421-01

Brand :
Hanna Instruments

HI6421 and HI6421P are streamlined benchtop meters with a large touch screen display, comprised of a housing and an integrated module designed for fresh and saltwater measurements of dissolved oxygen.

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KWD 697.500

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Description
Specifications
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Description

HI6421 includes Hanna's HI7641133 optical dissolved oxygen probe (opdo®) that is based on the principle of fluorescence quenching. An immobilized Pt-based luminophore is excited by the light of a blue LED and emits a red light. As oxygen interacts with the luminophore it reduces the intensity and lifetime of the luminescence. The lifetime of the luminescence is measured by a photodetector and is used to calculate the dissolved oxygen concentration.

User Interface

7-inch capacitive touch screen with multi-touch support Capacitive touch back, home and system menu keys User-friendly icons and symbols allow users to easily navigate and interpret the instrument functions.

Five Intuitive Views

Basic measurement configuration Simple GLP with calibration information Full GLP with electrode status and calibration point details Live updated, interactive graph Tabulated data with date, time, and notes

Measurement

Application-specific profiles allow quick and direct measurement without the need to update the sensor and system settings Active log during measurement Measurement stability indicator (using the Stability Criteria setting) Reading modes: direct and direct/autohold Temperature compensation can be automatic or set manually Audible and/or alarm messages for measurements outside of predefined limits Galvanic isolation for measurement

Connectivity Features & Services

Transfer logged data to a USB thumb drive Log files that include measurements and calibration data (as .csv file) FTP and email for log export via Ethernet and Wi-Fi connection USB type A for USB stick, keyboard, and printer USB type C for USB stick and PC connection

Downloads

HI6421-01.pdf

pdf
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Specifications

SKU
HI6421-01
DO Accuracy (@25ËšC/77ËšF)
HI6421 - HI7641133 Optical probe: from 0.00 to 20.00 mg/L (ppm) 1.5 % of reading or ± 0.01 mg/L (ppm), whichever is greaterfrom 20.00 to 50.00 mg/L (ppm) ±5% of readingfrom 0.0 to 200.0% saturation ± 1.5% of reading or ± 0.1%, whichever is greaterfrom 200.0 to 500.0% saturation ±5% of readingHI6421P - HI764833 Polarographic probe: ±1.5 % of reading ±1, least significant digit
DO Resolution
HI6421 - HI7641133 Optical probe: 0.01 mg/L (ppm); 0.1% saturationHI6421P - HI764833 Polarographic probe: 0.01 mg/L (ppm); 0.1% saturation
DO Calibration
DO optical:One or two points automatic calibration at 100% (8.26 mg/L) and 0% (0 mg/L).Single point manual using a value entered by the user in % saturation or mg/L.DO polarographic:Automatic-two points / User standard-single point
Barometric Pressure Range
450 to 850 mmHg; 600 to 1133 mBar; 60 to 133 kPa;17 to 33 inHg; 8.7 to 16.4 psi; 0.592 to 1.118 atm
Barometric Pressure Resolution
1 mmHg; 1 mBar; 1 kPa; 1 inHg; 0.1 psi; 0.001 atm
Barometric Pressure Accuracy
±3 mmHg within ±15 % from the calibration point;±3 mmHg ±1 least significant digit
Temperature Range
−20.0 to 120.0 °C−4.0 to 248.0 °F253.0 to 393.0 K
Temperature Resolution
0.1 °C; 0.1 °F; 0.1 K
Temperature Accuracy
±0.2 °C; ±0.4 °F; ±0.2 K
DO Probe
HI6421: HI7641133 Optical probeHI6421P: HI764833 Polarographic probe
Power Supply
DC adapter 100-240AC to 24VDC 2.5A
Environment
0 - 50 °C / 32 - 122 °F / 273 - 323 K maximum 95% RH non-condensing
Dimensions
205 x 160 x 77 mm (8.0 x 6.2 x 3.0")
Weight
Approximately 1.2 kg (26.5 lbs.)
Ordering Information
HI6421 is supplied with HI7641133 optical dissolved oxygen probe (opdo®); HI764060 electrode holder; capillary pipette; 24 VDC power adapter; USB-C to USB-A cable; probe quality certificate; quick reference guide with instrument quality certificate.HI6421P is supplied with HI764833 polarographic probe; HI764060 electrode holder; capillary pipette; 24 VDC power adapter; USB-C to USB-A cable; probe quality certificate; quick reference guide with instrument quality certificate.
Warranty
2 years

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