Opis
Stolni fotometar HI83303 mjeri 12 različitih ključnih parametara kvalitete vode pomoću 20 različitih metoda. Ovaj fotometar ima inovativni optički sustav koji koristi LED, uskopojasne interferencijske filtre, fokusirajuće leće i oboje, silikonski fotodetektor za mjerenje apsorbancije i referentni detektor za održavanje konzistentnog izvora svjetla, što osigurava precizna i ponovljiva fotometrijska očitavanja svaki put.
Izrađen s obzirom na industriju akvakulture, HI83303 je sveobuhvatno rješenje za održavanje optimalnih kemijskih i okolišnih uvjeta, sprečavanja bolesti i povećanja proizvodnje. HI83303 mjeri vitalne parametre poput lužnatosti, kalcija, nitrita i fosfata. Alkalnost igra ulogu u dinamičnom odnosu s pH i CO2 koncentracije, voda visoke alkalnosti smanjuje fluktuacije pH. Kapacitet pufera služi za pohranu dodatnog CO2 neophodan za fotosintezu u ribnjacima za proizvodnju kisika. Održavanje kalcija na određenim razinama vitalno je za pravilan rast i razvoj riba. Prekomjerni nitriti mogu biti otrovni za ribe. Kada nitrit stupi u interakciju s hemoglobinom, željezo se oksidira i krvne stanice više ne mogu nositi kisik. Fosfat je neophodan za rast biljaka; previše fosfata u sustavu akvakulture može pridonijeti cvjetanju algi smanjenju otopljenog kisika vitalnog za uspješan ekosustav.
Digitalni unos pH elektrode omogućava korisniku da mjeri pH pomoću tradicionalne staklene elektrode. Digitalna pH elektroda ima ugrađeni mikročip unutar sonde koji pohranjuje sve kalibracijske podatke. Podaci o kalibraciji pohranjeni u sondi omogućuju izmjenu pH elektroda bez potrebe za ponovnom kalibracijom. Sva mjerenja pH automatski se nadoknađuju odstupanja temperature pomoću ugrađenog termistora smještenog na vrhu osjetnog vrha za brzo i precizno mjerenje temperature.
HI83303 nudi način mjerenja apsorbancije koji omogućuje CAL CheckTM standardi koji će se koristiti za provjeru učinkovitosti sustava. Način apsorpcije omogućava korisniku da odabere jednu od pet valnih duljina svjetlosti (420 nm, 466 nm, 525 nm, 575 nm i 610 nm) za mjerenje i crtanje vlastite koncentracije u odnosu na modu apsorpcije. To je korisno za korisnike koji imaju vlastitu kemijsku metodu i za nastavnike koji podučavaju koncept apsorpcije pomoću Beer-Lambertovog zakona.
Dva su USB priključka za prijenos podataka na flash pogon ili računalo i za uporabu kao izvor napajanja za mjerač. Za dodatnu udobnost i prenosivost, mjerač može raditi i na unutarnjoj 3,7 VDC litij-polimernoj punjivoj bateriji.
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pH
pH Range Photometer: 6.5 to 8.5 pH
pH electrode: -2.00 to 16.00 pHpH Resolution Photometer: 0.1 pH
pH electrode: 0.01 pHpH Accuracy Photometer: ±0.1 pH
pH electrode: ±0.01 pHpH Calibration Automatic one or two point calibration with one set of standard buffers available (4.01, 6.86, 7.01, 9.18, 10.01) pH Temperature Compensation Automatic (-5.0 to 100.0 oC; 23.0 to 212.0 oF); limits reduced based on the pH electrode used pH CAL Check (electrode diagnostics) clean electrode and check buffer/check probe displayed during calibration pH Method Photometer: phenol red pH-mV Range ±1000 mV pH-mV Resolution 0.1 mV pH-mV Accuracy ±0.2 mV Oxygen, Dissolved
Oxygen, Dissolved Range 0.0 to 10.0 mg/L (as O2) Oxygen, Dissolved Resolution 0.1 mg/L Oxygen, Dissolved Accuracy ±0.4 mg/L ±3% of reading Oxygen, Dissolved Method Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Azide modified Winkler method Absorbance
Absorbance Range 0.000 to 4.000 Abs Absorbance Resolution 0.001 Abs Absorbance Accuracy +/-0.003Abs @ 1.000 Abs Alkalinity
Alkalinity Range Freshwater: 0 to 500 mg/L (as CaCO3)
Seawater: 0 to 300 mg/L (as CaCO3)Alkalinity Resolution 1 mg/L Alkalinity Accuracy ±5 mg/L ±5% of reading Alkalinity Method Colorimetric method Ammonia
Ammonia Range Low Range: 0.00 to 3.00 mg/L
Medium Range: 0.00 to 10.00 mg/L
High Range: 0.0 to 100.0 mg/L
(all as NH3-N)Ammonia Resolution Low and Medium Range: 0.01 mg/L
High Range: 0.1 mg/LAmmonia Accuracy Low Range: ±0.04 mg/L ±4% of reading
Medium Range: ±0.05 mg/L ±5% of reading
High range: ±0.5 mg/L ±5% of readingAmmonia Method Adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method Calcium
Calcium Range Freshwater: 0 to 400 mg/L (as Ca2+)
Seawater: 200 to 600 mg/L (as Ca2+)Calcium Resolution 1 mg/L Calcium Accuracy Freshwater: ±10 mg/L ±5% of reading
Seawater: ±6% of readingCalcium Method Freshwater: Adaptation of the Oxalate method
Seawater: Adaptation of the Zincon methodChlorine
Free Chlorine Range 0.00 to 5.00 mg/L (as Cl2) Free Chlorine Resolution 0.01 mg/L Free Chlorine Accuracy ±0.03 mg/L ±3% of reading Total Chlorine Range 0.00 to 5.00 mg/L (as Cl2) Total Chlorine Resolution 0.01 mg/L Total Chlorine Accuracy ±0.03 mg/L ±3% of reading Chlorine Method Adaptation of the EPA 330.5 DPD method Copper
Copper Range Low Range: 0.000 to 1.500 mg/L (as Cu2+)
High range: 0.00 to 5.00 mg/L (as Cu2+)Copper Resolution 0.001 mg/L; 0.01 mg/L Copper Accuracy Low Range: ±0.01 mg/L ±5% of reading
High Range ±0.02 mg/L ±4% of readingCopper Method Adaptation of the EPA bicinchoninate method Nitrate
Nitrate Range 0.0 to 30.0 mg/L (as NO3– N) Nitrate Resolution 0.1 mg/L Nitrate Accuracy ±0.5 mg/L ±10% of reading Nitrate Method Adaptation of the cadmium reduction method Nitrite
Nitrite Range Freshwater
Low Range: 0 to 600 μg/L (as NO2–N)
High Range: 0 to 150 mg/L (as NO2-)
Seawater Ultra Low Range: 0 to 200 μg/L (as NO2–N)Nitrite Resolution Freshwater: 1 μg/L; 1 mg/L
Seawater: 1 μg/LNitrite Accuracy Freshwater
Low Range: ±20 μg/L ±4% of reading
High Range: ±4 mg/L ±4% of reading
Seawater
±10 μg/L ±4% of readingNitrite Method Low Range and Seawater: Adaptation of the EPA Diazotization method 354.1
High Range: Adaptation of the Ferrous Sulfate methodPhosphate
Phosphate Range Freshwater
Low Range: 0.00 to 2.50 mg/L (as PO43-)
High range: 0.0 to 30.0 mg/L(as PO43-)
Seawater Ultra Low Range: 0 to 200 μg/L (as P)Phosphate Resolution Freshwater: 0.01 mg/L; 0.1 mg/L
Seawater: 1 μg/LPhosphate Accuracy Freshwater
Low Range: ±0.04 mg/L ±4% of reading
High Range: ±1 mg/L ±4% of reading
Seawater Ultra Low Range: ±5 μg/L ±5% of readingPhosphate Method Freshwater Low Range: Adaptation of the Ascorbic Acid method
Freshwater High Range and Seawater Ultra Low Range: Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Amino Acid methodGeneral Meter
Input Channels 1 pH electrode input and 5 photometer wavelengths pH Electrode digital pH electrode (not included) Logging Type log on demand with user name and sample ID optional input Logging Memory 1000 readings Connectivity USB-A host for flash drive; micro-USB-B for power and computer connectivity GLP calibration data for connected pH electrode Display 128 x 64 pixel LCD with backlight Battery Type / Life 3.7 VDC Li-polymer rechargeable battery / >500 photometric measurements or 50 hours of continuous pH measurement Power Supply 5 VDC USB 2.0 power adapter with USB-A to micro-USB-B cable (included) Environment 0 to 50.0 oC (32 to 122.0 oF); 0 to 95% RH, non-condensing Dimensions 206 x 177 x 97 mm (8.1 x 7.0 x 3.8″) Weight 1.0 kg (2.2 lbs.) Photometer/Colorimeter Light Source 5 LEDs with 420 nm, 466 nm, 525 nm, 575 nm, and 610 nm narrow band interference filters Photometer/Colorimeter Light Detector silicon photodetector Bandpass Filter Bandwidth 8 nm Bandpass Filter Wavelength Accuracy ±1 nm Cuvette Type round, 24.6 mm Number of Methods 128 max. Ordering Information HI83303 is supplied with sample cuvettes and caps (4 ea.), cloth for wiping cuvettes, USB to micro USB cable connector, power adapter and instruction manual.