Description
The portable seawater digital refractometer HI96822 determines the salinity of natural and artificial seawater by refractive-index measurement. It reports results in practical salinity units, parts per thousand and specific gravity: 0 to 50 PSU, 0 to 150 g/L (ppt) and specific gravity 1,000 to 1,114, with resolutions of 1 PSU, 1 g/L (ppt) and 0,001 specific gravity, and accuracies of ±2 PSU, ±2 g/L (ppt) and ±0,002 specific gravity. Temperature measurement spans 0 to 80 °C at 0,1 °C resolution with ±0,3 °C accuracy; automatic temperature compensation works from 10 to 40 °C and a reading is obtained in about 1,5 seconds. Only two drops of sample are needed to cover the stainless-steel ring and glass prism illuminated by a yellow LED. Simple calibration is performed with distilled or deionized water. A large dual-line display, few-key operation, BEPS battery-error prevention, automatic shut-off after three minutes of non-use and an IP65 housing support reliable field and laboratory work. This compact instrument from manufacturer Hanna Instruments measures 192 × 102 × 67 mm, weighs 420 g, runs on one 9 V battery for approximately 5000 operating hours, and is supplied as a single unit.
This article is part of Conductivity meters & cells, in pH & electrochemistry. See also pH meters.
Key features
- Pack size: 1 pc
- Salinity ranges: 0–50 PSU; 0–150 g/L (ppt); 1,000–1,114 SG
- Resolution: 1 PSU; 1 g/L (ppt); 0,001 SG
- Accuracy: ±2 PSU; ±2 g/L (ppt); ±0,002 SG
- Min. sample volume: 2 drops
- Housing: IP65, stainless-steel sample well
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Questions about Digital refractometer for Seawater analysis
What is this article?
Digital refractometer for Seawater analysis is the article on this page. Luminix Health distributes Hanna Instruments for laboratory use. It sits in Conductivity meters & cells, inside pH & electrochemistry, in Instruments de précision.
A conductivity meter and its cell measure how well a solution carries current. The cell constant is the geometry that converts conductance to conductivity, and it is calibrated with a standard. Temperature compensation matters because conductivity rises with temperature.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is Conductivity meters & cells. The catalogue is Instruments de précision.
Shelves beside this one are pH electrodes & sensors, pH meters, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.