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  • Author Author: me_Cris
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This is my Finisher Prize!

me_Cris

Hello everyone!

I enjoy many of the activities that I find on the Element14 Community, I also participate in some of them, and when I receive an award I am just as happy. Some time ago I participated in the "Experimenting with Gesture Sensors" challenge and received as a finisher a Tenma 72-8150 capacitor. In the gallery below you can see what it looks like.

Tenma 72-8150

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I wanted to present it for some time, as I know how, but I didn't really have time. Therefore, through this blog I want to offer a presentation from the perspective of an ordinary user.

Some of the features of this capacitor:
Features:
Display count: 1,999
•  Manual Range
•  Diode Test
•  Transistor Test
•  Continuity Buzzer
•  Low Battery Indication
• Data Hold
- Range Best Accuracy:
• Resistance (Ω) 20Ω/200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ/200MΩ/2000MΩ ±(0.8%+1)
• Capacitance (C) 200pF/2nF/20nF/200nF/2μF/20μF/200μF/2mF/20mF ±(0.5%+10)

General characteristics:
Power 9V Battery (6F22)
• LCD Size 61mm × 32mm
• Product Color Orange and Grey
• Product Net Weight 310g
• Product Size 172mm × 83mm × 38mm
• Standard Accessories Battery, Test Clip, Holster

It is available here: Tenma 72-8150

I will start with tests for the most important components, namely capacitors.
Below I present a video in which I measured some non-polarized capacitors, which I had on hand, with the values 22nF, 47nF, 100nF, 220nF. If you find something strange in the measurements, it is due to the imperfect contact, because the capacitors had traces of paper from the packaging.
The probability that non-polarized capacitors are the most difficult to identify, what their value is, in some cases we can see the code written on them, and a more experienced electrician knows them, but it helps me if I can measure them.

https://drive.google.com/file/d/1L7HQDGiGFUPh8pU-NSNMwcoOZdN8Lgmq/view?usp=sharing 

Tests with polarized capacitors, easier to identify, but in some cases we may be surprised that the capacitor can no longer be used. In the trade we also find cheap DMMs with the capacity measurement function, but these are more restricted. I tried to compare the measurements made with a capacitor vs DMM for some capacitors of 1uF, 10uF, 47uF, 100uF values. Fortunately, this DMM is also quite good, so the differences are not gross.

https://drive.google.com/file/d/185_m7paxOhl2y99Mlr-rYO-BNYR4fQPn/view?usp=sharing 

I also tested some diodes, something common like 1N4007, but also Schottky.

https://drive.google.com/file/d/10d57P0qmiJisj2Bz2IP9Xm-X89pSICC-/view?usp=sharing 

I also checked some bipolar transistors, such as BC546 NPN, BC556 or BC557 both PNP. I was not quite able to make contact so that I could measure well, but I managed in the end.

https://drive.google.com/file/d/17SpWuQx-uv-gUiiKdt36A0mwBLChQxvt/view?usp=sharing 

I have not entered the resistance area because I have quite a lot of confidence that this device does a good job.

And last but not least, how do you like the beep beep of this device in continuity mode?

https://drive.google.com/file/d/1dFHgHn6TdZysmoplRm7cUzl5hwSKJmRs/view?usp=sharing 

I appreciate this measuring device, a dedicated one, a capacitor, and as I said at the beginning, for me it is useful, especially when measuring non-polarized capacitors. I like the fact that the device has an On/Off button, I no longer have to turn the selector until the device stops. Another thing I like is related to the measuring probes, I received short wires with crocodiles, it is best to measure a component standalone, not in the circuit. Maybe normal probes would have worked, but I have new ones. There is no point in talking about the weight, it can be seen that it is a small device, on the back it has a foldable support to be able to position the device in a more convenient position for the user. I would also say that the orange accent is similar to that of non-polarized capacitors.

Share your thoughts in the comments about what I presented, your opinions help me to continue in the following blogs, if I have something to share with you.

Thank you Element14 Community!

Have a nice day!

By the way, it seems that I can't upload videos to the blog, so they won't be available for a long time,  maybe you know another method by which I can permanently upload videos. I have them on my drive and at some point I will delete them because I am starting to run out of space.

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