Guanruixin Digital Display Resistance Decade Box-(1/2Watt)
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Selected User Reviews For Guanruixin Digital Display Resistance Decade Box-(1/2Watt)
Item mostly matches what it says on the box. There is some evidence that resistance values tend to be in the area of plus 0% and minus 2%, but mostly in the minus 2% range. The readout value ought to be within 5%. With the pushbutton Thumbwheel selectors you can easily select a position, and you can feel how it feels To test for the actual wattage capacity I did not destroy any values, but the marked values on the resistors agree with the given values. It is a very good value for money and a very good product.
A decade box has been on my wish list for a while, and this one was very reasonable in price. The package arrived in a decent storage box with anti-theft locks Packaging that is static. I have no doubt they will last a long time since the mechanical switches have a smooth action. There are a variety of options for connecting the terminals, and the resistance values are accurate. My needs will be met by this.
It was a perfect solution. There was no significant error in any of the resistance values I checked. The resistance can be varied in an infinite number of ways. There are some vendors who have a limited amount.
I am happy to announce that I have developed a small, compact, and low-cost It has a simple design and is simple to use on your bench for more exact testing of circuits like RC timers and transistor switching.
When it arrived, it was literally missing some solder connections. I found it to be fairly effective once I did it myself. Not quite as precise as others I have attempted, but it did the job.
My job as an engineer at home required me to run some tests on a decade box. To pick one up, I made a quick trip to my office lab, but to my surprise, some of the settings had been I ordered it right away since I needed it right away.
I received it very quickly, and I tested it out with my four-year-old as soon as I opened it Measure the current flow through a wire with an The app is relatively accurate over most of the parameter range, but it is not as accurate for single figures In the first case, the ohm settings are off quite a bit. There is a value of There are actually 3 ohms on the resistance path, so you should use 2 ohms for the 1 ohm setting. There are three ohms in the circuit. I don't really need this for very low resistance ranges, so it is more than acceptable for my use. There is a lot of neat detail in the decade box. Due to its construction from circuit board material, this item is extremely lightweight and small. Changes to the resistance values can be made with the pushbuttons which have a good tactile feel. The unit I received was easy to use and gave me the power to get my work done quickly. It will add great value Unlike my calibrated, much more expensive lab decade box, this is even more accurate.
By stepping down each decade to zero and looking at the reading on the digital multimeter, I put this to the test. As you can see, when the multimeter leads were shorted out, the reading would be 1. This was due to the resistance of the connections and wire. The voltage was very close on the low years until I was down to the lowest decade. There is somewhat of a difference between the two due to the ohm value. For low resistances to be measured accurately, it is necessary to use a 4 wire measurement, which removes the lead resistance and contact resistance. This product has met my expectations.
I think your leads are probably more accurate than mine! No matter how I set the switches, I had a reading of infinite Ohms when I first connected the box. After evaluating my wiring, I did a quick visual inspection. I plugged the leads into the meter and found that they were 0 Ohms, so the box must be the culprit! As far as connections in the terminal go, I looked them over. The output terminals do not have any solder on them, there is no tarnish, and there is no cold soldering! It may be a good idea not to buy a decade box if you can't troubleshoot one. There is no issue with the terminals after I soldered them! The decade box is one of the best-looking decade boxes around. It is unique and geeky looking and will look fabulous A neat, solid solder joint is at every connection, the edges of the boards are smooth, and the switches are neatly installed and move With my Fluke meter, I measured the power within the limits of my test leads with a very high level of accuracy. The only thing cheaper was a board with manual jumpers, which I found online. At first I thought it was pretty pricey, but after checking it out more closely I realized it was not that expensive. It's a good deal compared to the closest box with switches which cost twice as much. The solder joints should be checked when you receive it, but it is recommended.
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