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Allgemeng Tools UV512C Digital Ultraviolet UVC Liichtmeter, 220 bis 270 nM 220-275 nm

Brand:General Tools

3.1/5

€
691.99

PRODUKTBESCHREIWUNG 3M Stikit Paper Disc Roll 236U bitt e versatile Disc mat engem praktesche Klebstoff, prett fir séier an einfach Befestegung un en 3M Stikit Backup Pad (getrennt verkaf). D'Roll bitt séier Zougang zu enger Disc an eliminéiert Disc Liners. D'Disc huet e staarken, C-Gewiicht Pabeier-Backing, dee géint d'Verschleiung wärend aggressiv Schleifen widderstoen. VUM Produzent D'3M™ Stikit™ Paper Disc Roll 236U Discs bidden aggressiv Schnëtt a laang Liewen op enger Premium Aluminiumoxid Disc mat engem haltbaren Rand a prakteschen Stikit Klebstoff. E Go-to-Produkt a villen industriellen Operatiounen, dës haltbar Discs si gutt gëeegent fir Héichproduktiounsschleifoperatioune wéi och allgemeng Zweck Uwendungen op Lack, Primer, Holz, Metall, Plastik, a Kompositen, dorënner Glasfaser. Entworf fir ze benotzen mat engem zoufällegem Bunnschleifer, de staarke C-Gewiicht-Pabeier-Backing widderstoen d'Trässen an d'Kantebekleedung während aggressiv Schleifen, an d'Discs si resin-gebonnen fir Hëtztbeständegkeet, d'Liewensdauer an d'Schnëtt erhéijen. Dës Discs hunn och en oppene Mantel an eng lastbeständeg Beschichtung fir Staubmanagement a Schnëttrate ze verbesseren. Eng Laaschtbeständeg Beschichtung erlaabt d'Disc weider ze schneiden och wann Dir Softholz, Faarwen an aner Materialien schleift, déi soss d'Uewerfläch vun der Scheif verstoppen an d'Schleiffäegkeet behënneren. D'Belaaschtung gëtt weider reduzéiert duerch en oppene Mantel, dat heescht datt d'Abrasivkäre liicht ausenee verdeelt sinn, sou datt Stëbs ka entkommen anstatt d'Schneidekant vun de Kären ze blockéieren, an doduerch d'Schnëttgeschwindegkeet an d'Disc Liewen ze optimiséieren. Sanding Discs kommen a verschiddene Formen fir verschidde Kraaftinstrumenter an Disc Pads ze passen. 3M™ Stikit™ Discs sinn entwéckelt fir eng breet Palette vu Schleif- a Veraarbechtungsbedürfnisser ze handhaben. Dës héichqualitativ, beschichtete Schleifprodukter kommen prett fir ze benotzen mat enger Drockempfindlech Klebstoff (PSA) Beschichtung op der Réck, sou datt se bequem op de Backuppad drécken, a propper ewechhuelen, eng onbeschiedegt Uewerfläch fir déi nächst Scheif hannerloossen. Eng Disc Roll mécht d'Discs einfach ze gräifen, während d'Benotzung vun Disc Liners eliminéiert gëtt. Eng Stikit staubfreie Disc soll a Verbindung mat engem Stikit staubfreien Disc Pad benotzt ginn (och e Backup Pad genannt a getrennt verkaaft) deen un engem zoufällege Bunnschleifer befestegt ass. Aluminiumoxid ass eng populär Wiel ënner industrielle Fachleit wéinst sengem schnelle Schnëttgeschwindegkeet a laange Liewen. Dëst Mineral mécht en haart, haltbar Schleifmëttel, deen sech selwer brécht fir frësch Schneidkanten am Gebrauch ze exponéieren, wärend traditionell Schleifmëttel wéi Granat séier mat der Benotzung verschwannen. Wéinst hirem schnelle Schnëttgeschwindegkeet, Härtheet a Kraaft, ginn Aluminiumoxidscheiwen wäit an der Schleifapplikatioune benotzt, zousätzlech zu Schleif- a Veraarbechtungsapplikatiounen. Aluminiumoxid ass gëeegent fir eng grouss Varietéit vu Materialien an der Holzbearbeitung an der Metallaarbecht, dorënner Eisenlegierungen. Fir méi wéi engem Joerhonnert huet 3M Innovatioun an Technologie applizéiert fir d'Liewen vun eise Clienten ze verbesseren an hir Geschäftsziler z'ënnerstëtzen. Haut déngt d'Firma, aus hirem Sëtz zu St Paul, Minnesota, industriell a kommerziell Clienten a Konsumenten a bal 200 Länner. Abrasive Systems Produkter, dorënner eng komplett Linn vu Beschichtete Schleifmëttelen, Mikrofinishen a mikroreplizéiert Schleifmëttelen, an Hardware Accessoiren, bidden den Ofschloss fir bal all Uewerflächemodifikatiounsapplikatioun. D'3M Mark, iwwer Dausende vu Produkter, representéiert Konsistenz, super Qualitéit a Wäert.

Betrag
An de Weenche leeënKaaf elo

EAN: 0031113164051

Kategorien Industriell & Wëssenschaftlech, Test, Mooss & Inspektéieren, Liicht Meter & Photometeren,

GENERAL TOOLS: Mir sinn en unerkannten Leader am Design an Entwécklung vun spezialiséiert Präzisiounsinstrumenter gewidmet fir aussergewéinlech Clientsservice ze liwweren. Mir encouragéieren Handwierker an DIYer méi schlau ze schaffen, besser ze moossen a méi produktiv ze reparéieren. MOUNT: Stativ a magnetesch Mounts. RECORDS: Automatesch Zäit (Intervall) Opnam an 1, 2, 5, 10 an 30 Sekonnen an 1, 3, 5 an 10 Minutten. MÉIEREN: 20-Mooss Erënnerung. AFFICHÉIEREN. Backlit dual-readout 4-Zifferen LCD. Miessbereich: 1 ze 1999 uW / cm2 an 0. 01 ze 40 mW / cm2. Spektralberäich: 220 bis 275 nM. MÉISCHT: Betrag vun UVC Liicht emittéiert an Uwendungen wéi: UV Aushärtung an Steriliséierung, Hallefleitfabrikatioun, Offsetdruck, Ëmweltiwwerwaachung an industriell Prozesskontrolle. Dëst Produkt kann net benotzt ginn fir Ausrüstung eleng ze steriliséieren.
Batteries Included? ‎Yes
Batteries Required? ‎Yes
Battery Cell Type ‎Alkaline
Certification ‎No
Country of Origin ‎China
Customer Reviews 4.0 4.0 out of 5 stars 110 ratings 4.0 out of 5 stars
Domestic Shipping Item can be shipped within U.S.
Included Components ‎One UV probe, tripod screw, magnetic mount, hard foam-lined carrying case, and one 9 V battery
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Is Discontinued By Manufacturer ‎No
Item model number ‎UV512C
Item Package Quantity ‎1
Item Weight ‎0.8 ounces
Manufacturer ‎General Tools
Part Number ‎UV152C
Power Source ‎Battery Powered
Product Dimensions ‎2.88 x 10.63 x 10.5 inches
Size ‎220-275nm
Style ‎220-275 nm
Warranty Description ‎Warranted for workmanship and materials

3.1

9 Review
5 Star
58
4 Star
14
3 Star
9
2 Star
8
1 Star
10

Schreift Är Bewäertung

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Scritto da: P. Scott Pope
Modestly Priced UVA Meter with a Few Limitations
Needing to test various UV light sources, I purchased the General Tool UV513AB Digital UVAB Meter to provide a greater level of accuracy and precision than a personal UV meter intended for consumers. While I have generally been content with this instrument, the name of the meter is a bit of a misnomer as it is truly a UVA meter calibrated for 365nm, which is well outside the UVB range. Sensitivity drops off significantly in a somewhat asymmetric distribution about 365nm, reaching zero % sensitivity at 280nm and 420nm. An important UVB wavelength - 308 nm - has a spectral sensitivity of only 30%. There is no setting, adjustment or filter to obtain a better measurement of UVB wavelengths. It is some difficult to objectively review and rate such a device because its well and not-so-well understood limitations can be attributed to its modest price. Other laboratory grade UV meters can cost more than three times as much and beyond. So, it is the value and utility that must be discussed. Compared to a personal UV meter such as the Oregon Scientific EB612 Personal UV Monitor, this instrument is quite a powerful tool that is easily worth five times as much. The General Tool UV513AB allows for real time UV measurements in a value that can be interpreted on an absolute scale in universal metrics of mw/cm^2 - not an ambiguous continuum meaningful only to the instrument such as relative intensity of 1 - 20. This is especially helpful when observing the output of UV LEDs whose output can vary based on temperature. There are some deficits that are inexcusable, even at its low price point. Despite being a relatively simple device, the menu navigation is oddly confusing. The manufacturer should have added an additional button or switch to avoid the need to cycle through different functions. It is nice, however, that there are two readouts, including one that is able to show min, max, and average values. The meter also has a data store capability that can be displayed on the secondary reading while the main function is still being displayed. The manual for this meter is poorly written. One of my big concerns is that at least one of the specifications is incorrect. The "High Illumination" spectral range is listed at 0.01 mw/cm^2 to 40.00 mw/cm^2. Yet, I have exceeded 40 mw/cm^2 numerous times, reaching up to 66 mw/cm^2. Given that an almost identical meter is sold by Sper Scientific, my guess is that General Instrument didn't make or design this product. Hence, the manual was probably written by someone else other than the designer or manufacturer. Regarding the fundamental capabilities of the sensor, the 40 mw/cm^2 maximum value is well below the output of many light sources, including UV lasers and high brightness LED modules. Just for reference, readings of greater than 8.5 mw/cm^2 can be reached at the sun's maximum intensity during the day in the Midwestern United States. Like the wavelength sensitivity limitation, the maximum intensity ceiling could be addressed with different filters, which can often be extremely expensive. It would be helpful if General Tool could provide easily attachable and modestly priced filters including bandpass variants to address the wavelength and max intensity issues. Despite all of the limitations, this instrument is a good value - especially when compared to what is offered in the larger scientific instrument market. For example, a small bandpass UV filter used to obtain a better reading on a specific UVB wavelength could cost several hundred dollars from a supplier such as Edmunds Scientific. I would have appreciated a few additional capabilities but the price would be expected to increase dramatically. That being said, this instrument is a solid four stars compared to what is available at both lower and higher price points. Pros Inexpensive Flexible sensor mounting/use with wand High level of precision in the microwatts and reported accuracy of 4% Portable Easy to understanding readings Min, max, average readings with data store Cons Poorly written manual Complex function navigation
Scritto da: Lou Deguzman
not calibrated correctly
Easy to use but the meter is not calibrated correctly. I have 2 UV meters that are out of calibration and they read 5.0 and 5.9 mW/cm2 respectively for our lamp source (with I-line filter). This meter reads 11mW/cm2 so it made me suspicious. I purchased another brand in Amazon and it reads 5.6 mW/cm2 so I trust it more. The return period is now past so I cannot return it. It would be great if I can calibrate it myself but I don't think it is possible.
Scritto da: Hester Prynne
Good UV Meter
This meter measures UV light intensity -- in the spectrum range 290-370 nanometers. Let me be clear -- I'm not a scientist! When I first bought this meter, I didn't know what any of the above meant, since I just wanted something to let me know if it was OK to go outside (I'm trying to stave off skin cancers). Things to know (I learned from researching since buying this meter): 1) You can't see UVB or UVA light, since they're not in the visible spectrum (400-700 nanometers). 2) UVA wavelength (most dangerous for deeper skin cancers like squamous cell carcinoma and melanomas) ranges from 315-400 nanometers, 3) UVB is 280-315 nanometers. During the middle of the day, if I point the handheld sensor at the sky, I get intensity readings upwards of 6000 microwatts/cm2. I figure if the reading is anything below about 100, I'm getting pretty negligible radiation. As far as the product: The user manual is hopeless for people who aren't scientists, however, the device is easy to use. You simply turn it on and point it toward a light source. It gives you a digital reading that instantly changes to match where you point it. I haven't used the memorize functions. I've only used it as a real-time monitoring device, and that works great. It came with a very durable and strong, shock-proof case, which makes me suspect it should be treated delicately.
Scritto da: Sprari
Pros and cons, but overall OK
Bought this light meter to measure intensity of UV light while outdoors. This meter appears to do the job well. But as others have noted, the user guide is too brief, and doesn't provide much information on how to use all its features. It should be noted that the meter has to be assembled before it can be used. Those instructions are given in the user guide. I wasn't able to find any other source of information online for how to use this meter. I don't have a scientific or engineering background, so I'm probably not getting the most out of the device. As far as I can tell, it measures both UVA and UVB simultaneously, and there doesn't seem to be a way to measure just one wavelength or the other. The other thing is the on/off switch is too easily activated. It doesn't take much pressure to accidentally turn it on. Keeping it in its travel case is inconvenient. However, it could turn on accidentally when being carried in an ordinary day pack. I would recommend using a switch that has to be flipped up and down instead. It's product name is "General Tools & Instruments UV513AB Digital UVC Meter", so I assume it measures both UVA and UVB, but then why is it called a "UVC meter"?
Scritto da: PL
Very useful meter for UV measurement - user interface is awful as is the manual
The mechanics of the meter are good and it appears to be accurate. I wanted to understand the different sources of UV in my environment as well as their magnitude. This unit can be used in a broad variety of tasks and it a reasonable value for a well made unit. The user interface and manual are pretty awful though. If you understand the physics and operation of a UV photometer this is reasonably easy to figure out. They should put together a better manual and relabel or change the key layout on the unit.
Scritto da: E
Nice, but not all UVA spectrum is covered. Still good for someone trying to avoid UVA/UVB exposure.
Some of UVA (and UVB) wavelengths are not covered. (Sensitive to some of UVA and some of UVB spectrum) Hopefully remaining coverage could be a reliable proxy. FIELD TESTS: I have tested sensor with regular transparent glass: value dropped by 35% or so. When testing various glasses with UV protection, value dropped 98%. Testing window light with some kind of film (came from the builder), value dropped 60-70%. Since negative control (regular non UVA-blocking glass) did not drop value of UV to 0, this device may be used reliably to aproximate UVA/UVB protection for glasses; measure UV levels indoors.
Scritto da: Spruce
dead upon arrival
Arrived broken. Had to fix by flipping module and switching battery polarity. Works ok now. Limit is 10000uW/cm which is lower than that given off by the sun on a bright day.
Scritto da: T.C.
versatile
bought it for sun protection measures. no problem with it so far. easy to use.
Scritto da: Murdock Cassell
Four Stars
All good

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