Saturday, September 22, 2012

Ohaus Valor 3000 Extreme Compact Bench - Portion Control Scale V31XH2 (4.4 x 0.0005 lb / 0.1 g) Review

Ohaus Valor 3000 Extreme Compact Bench - Portion Control Scale V31XH2 (4.4 x 0.0005 lb / 0.1 g)
Average Reviews:

(More customer reviews)
I purchased one of these Ohaus Valor 3000 Xtreme scales a couple years ago, for home use, and I'm satisfied with the value for money. I chose this particular scale for its combination of affordability, range, precision, and support for metric units. I like that this model supports both battery or mains modes of operation. One of the four feet on the scale is a threaded height adjustment, which allows the scale to sit unwaveringly on an uneven counter or bench top. I don't test the calibration of this scale, but it seems sufficiently accurate. The model I purchased is not rated for retail/trade, which involves special regulatory concerns.
Now I will gripe a bit.
I use this scale daily in battery operated mode. The scale has a great auto-off feature, but large air currents or vibrations can defeat it. In order to extend battery life, I often turn the scale off manually. When turning the scale on, there is a tedious five second delay, during which the scale advertises the brand name and firmware version number; then performs a countdown. I don't know what engineering requirement may necessitate the five second countdown, but it is most irritating. Five seconds doesn't sound like much, but when in you're in the flow of daily activity, it's a huge, obvious, nuisance.
Other minor gripes pertain to the battery replacement procedure. The shape of the scale allows it to shed spills, but makes it difficult to hold bottom up. Perhaps I'm being overly cautious by declining to rest the scale on its weighing platform during the battery replacement procedure? The scale has nice, big feet, to give it stability. However, they interfere with removal and replacement of the battery compartment cover. When the battery compartment cover is removed, the batteries jack knife upwards and refuse to lay flat. This eases removal of dead batteries, but confounds replacement of the battery cover once fresh batteries are in place.
The buttons on the control surface seem sturdy, but require excessive force to activate, in my opinion.
If the scale were of lesser height, it would fit more easily in a drawer. As with the battery change procedure, the scale is difficult to pick from a drawer or place in a drawer, because it lacks affordances.
Overall, though, the scale has good features and was favorably priced at the time I bought it. I gather this general scale design was targeted at commercial applications. A commercial user may find favorable some of the qualities that detract from this scale's use in the home, shop, or small laboratory.

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Friday, September 21, 2012

American Weigh DIA20 Digital Carat Scale, 100 by 0.005 CT Review

American Weigh DIA20 Digital Carat Scale, 100 by 0.005 CT
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I ordered this on Monday and recieved it Wednesday, which is always nice. I already had a "American Weigh Signature Series Black AWS-100 Digital Pocket Scale, 100 by 0.01 G" with a different retailer's label on it for comparison. I was hoping to get more digits of accuracy because the "old" scale only shows 0.2 grain increments.
The scale does read 0.001 gram (0.002 grain) increments, but the accuracy and repeatablity are questionable. I played with the scale for 10 minutes, weighing various items, to make sure that it was warm. Then I ran a series of on/off scale measurements with a single object (around 99 grains) and recorded the values. I was on a kitchen counter with a heavy top, so the support should have been adiquate and stable. I waited approximately 4-6 seconds for the measurement to stablize before recording the value. I attempted to gently put the object on and off the scale, as I would if I was really using it for the intended purpose.
I recorded 27 "zero" values and 26 "object" values (with the object on the scale). Starting with a tare, the zero values driffed from a high of 3.14 grains to a low of -0.26 grains, the average (Avg) was 1.03 and the standard deviation (SD) was 1.03 (repeated value is coincidental, I checked). The object values drifted from a high of 101.14 to a low of 97.88, the Avg was 99.3 and the SD was 1.03 (again, I checked the equations). If I calculated the difference between the "object" values and the preceding "zero" values, the Avg was 98.29 and the SD was 0.36 (which is better). If I calcuated the difference between the "object" and the next "zero" values, the Avg was 98.22 and the SD was 0.23 (the smallest seen).
Since i wanted to use the scale for powder and it would be difficult to weight it a bunch of times to calculate the differences, so I guess I just got a nice box to put on my shelf.
The old scale always comes back to 0.0 and the scatter is within the resolution of the display when you move it around the platform. It is half the price and more repeatable. BTW, it says the "object" is 98.6 grains. For what I need, repeatability is more important than accuracy. I need piles of powder that are the same size more than a particular size.
So, still looking for a better scale...

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Thursday, September 20, 2012

Polder Slimmer Digital Kitchen Scale Review

Polder Slimmer Digital Kitchen Scale
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Bought this at Costco, and it is wonderful! The touch buttons are so easy to use, and it is so slim that I can slide it between kitchen appliances while not in use! So easy to clean, I usually just use a disinfecting wipe! LOVE this product!

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Wednesday, September 19, 2012

Cuisinart KML-10 PerfectWeight Digital Kitchen Scale Review

Cuisinart KML-10 PerfectWeight Digital Kitchen Scale
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I love this scale. It is very accurate and has a nice little stainless steel cover on it that you can take off and wash separately, instead of trying to be careful not to soak the electronic parts when washing it. It weighs up to 11 lbs and does a great job with smaller weights too. I highly recommend this scale.

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Whether controlling dietary portions or baking up a storm, this digital kitchen scale delivers precise results with exceptional consistency. The unit features a sleek stainless-steel base, a tempered glass weighing platform, and a large LCD screen for easy, accurate readings in imperial or metric mode. The scale offers a weighing capacity up to 5 kilograms or 11 pounds, and its Add-On Weight function makes it possible to weigh multiple ingredients without starting from scratch. Food can be weighed directly on the glass weighing platform, or a bowl can be used for safe, sanitary food handling. Other highlights include touchpad buttons that wipe clean, a removable dishwasher-safe stainless-steel cover, and a contemporary design that nicely complements any modern kitchen. Slim enough to slip into a drawer, yet elegant enough to leave out on the counter, the digital kitchen scale measures 8 by 9-4/5 by 2-1/5 inches. Batteries come included.

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Tuesday, September 18, 2012

Polder 2109 Gourmet Add'N'Weigh Scale, 5-Pound Review

Polder 2109 Gourmet Add'N'Weigh Scale, 5-Pound
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This was an impulse buy and now I love using it. The scale easily fits on my counter top and is an easy clean up. It provides me with quick access to a scale without all the fuss - useful for those who want to control portion sizes. Plus, it's kid friendly!

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Why waste time putting stuff in and taking stuff out of the bowl when you can just as easily add ingredients consecutively and use the add 'n' weigh feature to measure correctly? This scale is a pleasure to use, a pleasure to look at and if you don't always want to look at it, its bowl can be inverted for space-saving storage.

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Monday, September 17, 2012

Terraillon BA22 5-Pound Mechanical Kitchen Scale Review

Terraillon BA22 5-Pound Mechanical Kitchen Scale
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I purchased this to replace an old model that was almost the same. This one however is much, much smaller than my old one. I didn't notice that until I received it. It looks the same as my old one, except the color, but it is much too small for many uses. It is very attractive though!

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Sunday, September 16, 2012

Salter Stainless Steel Electronic Scale, Weighs to 5-Pound Review

Salter Stainless Steel Electronic Scale, Weighs to 5-Pound
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Used this scale for several years and it's always performed well (still on the original battery after moderate use). Five pound limit works well for most of my applications. Easy to maintain (though I admit to storing it in the original box for both convenience and protection). Haven't needed to call the manufacturer for support as another review mentions so I can't speak to the service from them - but overall I'm happy using this model.

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