{"title":"Electronics","description":null,"products":[{"product_id":"hanna-portable-dissolved-oxygen-meter-used","title":"Hanna Portable Dissolved Oxygen Meter - Used","description":"\u003cdiv\u003e\r\n\tThe HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide laboratory precision and accuracy under harsh environmental and industrial conditions. This meter offers many features including automatic calibration, auto-endpoint detection, and compensation for temperature, salinity and altitude. The HI9146 is supplied complete with polarographic probe, PTFE membrane caps, electrolyte fill solution, and rugged carrying case.\u003c\/div\u003e\r\n\u003cul\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tEasily Replaceable Membrane Caps\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tAutomatic Calibration\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tBest suited for measuring DO during the fermentation\/aging process in both beer and wine (not recommended for use during bottling, and cannot be used in carbonated beer).\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eApplication Note\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tDuring the aging process, wine can range from 6-9mg\/L and when bottled most wines should be below 1.25mg\/L for Red and 0.6mg\/L for white. Based on specifications, the HI9146W is well suited for use during the fermentation\/aging process in both beer and wine, however it is not recommended for use during the bottling process.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tDissolved oxygen is a commonly measured parameter in wine analysis. The HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide high accuracy measurements whether in the field or in the lab. The meter features automatic calibration performed at one or two points in saturated air and\/or zero oxygen solution.All readings are automatically compensated for temperature variations and can be frozen on the display upon stability using the auto-end feature. Salinity and altitude compensation are user adjustable based on the environmental conditions that are present. The HI9146 features a  Battery Error Prevention System (BEPS) that detects when the batteries become too weak to ensure reliable measurements. The HI9146 is supplied complete and ready to use.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tFeatures at a Glance\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003ePolarographic Measuring System\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe meter and probe use polarographic sensor technology based on the Ross and Clark polarographic measurement method. The probe is comprised of a platinum cathode and silver anode in an electrolyte solution held in place over the surfaces of the electrodes by a polymer membrane. An external voltage applied across the system establishes a current proportional to the concentration of dissolved oxygen.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eReplaceable Membrane Caps\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe pretensioned thin polytetrafluoroethylene (PTFE) membranes employ a screw cap design that can be changed quickly by simply filling with the HI7041 electrolyte fill solution and screw on the DO probe.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tAutomatic Calibration - Calibration can be performed at one or two points to 100% and\/or 0% saturation. The 100% saturation is done in air while the 0% is done with the HI7040 bicomponent zero oxygen solution.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eGood Laboratory Practice (GLP)\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe Good Laboratory Practice feature allows the user to recall calibration information including date, time and calibrations points.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tAutomatic Temperature Compensation - All readings are automatically compensated for temperature variations with a high accuracy, built in linearized thermistor temperature sensor behind a stainless steel cover.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eAltitude Compensation\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe HI9146 allows for altitude compensation for up to 4000 meters with a 100 meter resolution.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eSalinity Compensation \u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tSalinity compensation is adjustable from 0 to 80 g\/L (ppt) with a 1 g\/L resolution for the measurement of DO is brackish and seawater.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eAuto End Point \u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe HI9146 features an auto endpoint mode in which when selected the reading will frozen on the display once a stable measurement is obtained. The auto-end feature allows for consistency among various users by ensuring that stability has been achieved before recording a measurement.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eBacklit LCD\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe HI9146 has a display with a backlight for easy viewing of readings in poor lighting conditions.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eBattery Error Prevention System (BEPS)\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe Battery Error Prevention System detects when the batteries become too weak to ensure reliable measurements. The backlight feature is automatically disabled when batteries are getting low and a clear indication is displayed to warn the user of this condition.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eThin Polarographic Dissolved Oxygen Probe for Wine\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe HI76408 is a thinner Clark-type polarographic dissolved oxygen probe for Hanna’s benchtop and portable dissolved oxygen meters. The probe is constructed of durable ABS plastic and contains an integrated temperature sensor for temperature compensated measurements. It is compatible with our HI76407A\/P PTFE membrane caps. Each membrane separates the probe’s platinum cathode and silver anode from the water sample being measured. Oxygen diffuses across the membrane and interacts with the polarographic system to produce a current proportional to oxygen concentration. Each cap is easily filled with HI7041 electrolyte and screwed on to the probe. The probe’s thin design makes it ideal for wine packaging measurements.\u003c\/div\u003e\r\n\u003cul\u003e\r\n\t\u003cli\u003e\r\n\t\tRugged portable dissolved oxygen meter (DO meter).\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\tAutomatic Calibration.\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\tAuto End Point mode which will freeze display once stable measurement is obtained.\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\tBacklit LCD for easy view in poor lighting.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cdiv\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\r\n\t\u003cstrong\u003eNote: This can only be used in uncarbonated beer.\u003c\/strong\u003e\u003c\/p\u003e\r\n","brand":"MoreBeer!","offers":[{"title":"Default Title","offer_id":54083904209264,"sku":"r4s-dp-23636","price":718.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/0162\/1872\/files\/43776.png?v=1786003330"},{"product_id":"hanna-portable-turbidity-and-bentonite-check-meter-hanna-hi83749-01-used","title":"Hanna Portable Turbidity and Bentonite Check Meter (Hanna# HI83749-01) - Used","description":"\u003cdiv\u003e\r\n\tThe HI83749 Portable Turbidity and Bentonite Check Meter ensures protein stability before bottling for great quality wine. The HI83749 measures turbidity of samples from 0.00 to 1200 NTU (Nephelometric Turbidity Units) and is USEPA compliant.\u003c\/div\u003e\r\n\u003cul\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tLog and transfer up to 200 measurements.\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tGLP (Good Laboratory Practice) feature for traceability of the calibration conditions.\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli\u003e\r\n\t\t\u003cdiv\u003e\r\n\t\t\tGreat for small \u0026amp; medium wineries and advanced hobbyists.\u003c\/div\u003e\r\n\t\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cdiv\u003e\r\n\t\u003cdiv\u003e\r\n\t\tThe HI83749 Portable Turbidity and Bentocheck Meter is specially designed for measurement of turbidity in wine. The instrument is based on a state-of-the-art optical system which guarantees accurate results, assures long term stability, and minimizes stray light and color interferences. It also compensates for variations in intensity of the lamp, although proper calibration ensures measurements are fully validated, comparable, and in compliance with regulatory requirements. The 25 mm round cuvettes composed of special optical glass guarantee the repeatability of turbidity measurements.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eFeatures at-a-glance\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eAMCO AEPA-1 Primary Turbidity Standard\u003c\/strong\u003e - The AMCO AEPA-1 supplied standards are recognized as a primary standard by the USEPA. These non-toxic standards are made of styrene divinylbenzene polymer spheres that are uniform in size and density. The standards are reusable and stable with a long shelf life.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eCalibration \u003c\/strong\u003e– A two, three, or four-point turbidity calibration can be performed by using the supplied (\u0026lt;0.1, 10, 100, and 500 NTU) standards. Calibration points can be modified if user-prepared standards are used.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eFast Tracker™ \u003c\/strong\u003e- For users taking measurements throughout the winemaking process, the HI83749 is equipped with Fast Tracker™ - Tag Identi˜fication System (T.I.S.) that makes data collecting and management simpler than ever. Fast Tracker™ allows winemakers to record the time and location of a speci˜fic measurement or series of measurements using iButton™ tags on specific tanks for quick and easy readings. Each iButton® tag contains a computer chip with a unique identi˜cation code encased in stainless steel.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eGLP Data\u003c\/strong\u003e – The HI83749 features complete GLP (Good Laboratory Practice) functions that allow traceability of the calibration conditions. Data includes calibration points, date, and time.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eData Logging\u003c\/strong\u003e – Up to 200 measurements can be stored in the internal memory and recalled at any time.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eData Transfer\u003c\/strong\u003e – For further storage or analysis options, logged data can be downloaded to a Windows compatible PC using the RS232 or USB port and the HI92000 software.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eBacklit Display\u003c\/strong\u003e – A backlit LCD display provides an easy to understand, user-friendly interface. Displayed codes guide the user step-by-step through routine operation and calibration.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eSignificance of Use\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tUnrefined wine is quite turbid and hazy from suspended solids produced during fermentation. The unrefined wine is treated with fining agents to reduce cloudiness. This cloudiness is what winemakers refer to as protein haze, or haze for short. Thaumatin-like proteins (TLPs) and chitinases are the primary grape proteins responsible for haze formation. These positively charged proteins degenerate and stick together, resulting in undesirable flocculent clouds and visible haziness.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tThe prevention of protein haze or deposit in bottled white wines is a universal concern and often a wine needs to be stabilized before bottling. One commonly used stabilization agent is bentonite. Bentonite is a volcanic clay earth type fining agent (like kaolin) that acts as a wine stabilizer. It improves the clarity of wine but has also negative aspects because of the volume of lees formed, reduction of tannin and color. Since there are different types and qualities of bentonite with different capacity of protein removal, it is important to make laboratory trials with the same lot and wetting degree of the bentonite as that will be used in the cellar.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tProtein stabilization is normally not a problem in bottled red wines because of the relatively high concentration of phenols that binds and precipitates with the unstable proteins before bottling. Often bentonite is added to red wines at a level of about 12 g\/hL (1 lb\/1000 gal), reducing colloidal suspended particles thus improving membrane filterability.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tWines with low phenols contents, such as rose, light reds and whites should be checked for protein stability before bottling. Hanna offers a rapid test to verify the risk of future protein haze formation. If protein instability is detected, a next test can help defining the right amount of bentonite to be added for improving protein stability. It is important not to overdose bentonite, avoiding stripping wine flavour, body, and significant loss of color, especially in young red wines. Moreover, adding only the necessary amount of bentonite to obtain the desired protein stability results in a reduction of costs.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tWinemakers can determine the initial turbidity of the unrefined wine with the HI83749 turbidity measurement instrument. After taking a turbidity reading the pre-made HI83749-20 Bentocheck Solution is added to the wine sample. A second turbidity measurement is taken. If the second turbidity reading is less than the initial turbidity reading plus 2 NTU, the wine can be considered stable. Otherwise a fining trial can be performed to determine the amount of bentonite that must be added to stabilize the wine.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tPrincipal of Operation\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tTo measure turbidity the HI83749 passes a light beam through the sample that is scattered in all directions. The intensity and pattern of the scattered light is affected by many variables, such as wavelength of the incident light, particle size and shape, refractive index, and color. The optical system of the HI83749 includes a tungsten fi˜lament lamp, a scattered light detector (90°) and a transmitted light detector (180°).\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tThe HI83749 features a powerful microprocessor that calculates the NTU value from the signals that reach the two detectors. An effective algorithm is used to correct and compensate for any color interferences. The optical system and measuring technique also compensate for fluctuations in lamp intensity, minimizing the need for frequent calibration.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\tThe HI83749-11 AMCO AEPA-1 standards ensure that measurements are traceable to primary reference materials. These standards are used for calibration and performance verification of the turbidity meter.\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eSupplied with Certificate of Analysis\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Lot number\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Expiration date\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Standard value @ 25 °C\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Reference meter NIST traceable\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t\u003cstrong\u003eProvided storage containers\u003c\/strong\u003e\r\n\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Light tight\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t• Protects from accidental breakage\u003c\/div\u003e\r\n\t\u003cdiv\u003e\r\n\t\t \u003c\/div\u003e\r\n\t\u003cul\u003e\r\n\t\t\u003cli\u003e\r\n\t\t\t\u003cdiv\u003e\r\n\t\t\t\tCan log and transfer up to 200 measurements and is equipped with Fast Tracker\u003c\/div\u003e\r\n\t\t\u003c\/li\u003e\r\n\t\t\u003cli\u003e\r\n\t\t\t\u003cdiv\u003e\r\n\t\t\t\tTag Identification System (TIS) that makes data collecting and management simple by recording time and location with the touch of a button, a two, three, or four- point turbidity calibration can be performed using the supplied standards, features a backlit LCD display with a user-friendly interface which has user step by step help through routine use and calibration\u003c\/div\u003e\r\n\t\t\t\u003cdiv\u003e\r\n\t\t\t\t \u003c\/div\u003e\r\n\t\t\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\r\n\t \u003c\/p\u003e\r\n","brand":"MoreBeer!","offers":[{"title":"Default Title","offer_id":54083946905968,"sku":"r4s-dp-24900","price":1177.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/0162\/1872\/files\/45001.png?v=1786003760"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/0162\/1872\/collections\/electronics-category.png?v=1788800299","url":"https:\/\/returnsforsale.com\/collections\/electronics.oembed","provider":"returns for sale marketplace","version":"1.0","type":"link"}