SG-004A Multifunctional Signal Generator 4-20mA 2.4" TFT Digital Analog Adjustable Current Voltage Thermocouple Resistance Process Calibrator Historical Record with Real-time Curve

I didn't get this for perhaps it's typical intended use of generating signals for trouble shooting PLCs and such.I got this to use an educational tool to teach kids about electronics, voltage, current and signals and the like.While initial function and configuration was a little confusing at first, it was not hard at all to understand once I read the manual. I did have to break down and read the manual to understand it. The user interface actually changes the colors of the buttons to indicate different modes that you are in and you can control different things depending on these modes.I also found some helpful youtube videos where people demonstrated how to generate some signals with the device, which I was able to reproduce. It is also cool that you can visualize your generated output signal on the display and tweak it in real time.So, long term goal is to use this to generate some signals, and then show what the signals are, what voltages and frequencies are, which this seems well equipped to do. Then, on the other side, teach how to capture and view these signals on an Oscilloscope, without requiring a full on bench unit or a controller.My initial impression of this is it will work well for that purpose, seemed relatively affordable compared to other options, and seemed quite well made.I feel I have only touched the tip of the iceberg on what it can do. In my reading of the manual and some of the videos online, you can take an input signal of one type, current for example, and convert to a voltage signal, or vice versa, which I also think could be very useful for my intended usage.I think it could be a great troubleshooting tool for the kids as well when trying to diagnose where problems might be in a system, which can be difficult for them (or all of us really). Often the question arises, is it hardware, or is it software. I could see where this could potentially take away the software side of the question. Use this to generate the signal you think the software should be generating and verify you see the results you are expecting. If you do, you can hand it off to software, with proof your hardware works. If it doesn't use this to help figure out why.

Works fine, fully featured, non-intuitive UI makes it almost impossible to use.

The media could not be loaded. I recently had the opportunity to try out the ANKONG SG-003A 4-20mA 0-24V Signal Generator, and I must say, it's quite an impressive device. Designed specifically for industrial field PLC debugging, process instrumentation, and electric valve testing, this signal generator offers a range of features that make it a valuable tool.One of the standout features of the FNIRSI SG-003A signal generator is its user-friendly operation interface. Whether you're working during the day or at night, the friendly interface ensures that operating the device is a breeze. The adjustable button backlight and high-definition TFT color LCD screen further enhance the user experience, making readings more eye-catching and easy to interpret.Despite its compact and lightweight design, this signal generator doesn't compromise on performance. Powered by a large-capacity lithium battery, it offers a long standby time and high precision. The 3000mHA lithium battery ensures super long working hours, and its easy charging with a Type-C interface (5V) adds to the convenience. Additionally, the low power consumption of the device is worth noting, with a maximum power consumption of only 0.32W.The ANKONG SG-003A signal generator supports automatic output functions for both voltage and current. It offers three modes: single rise, single drop, and cycle. Additionally, it provides a custom function for output, allowing you to set upper and lower output limits as per your requirements. The PWM output feature enables you to set frequency and duty cycle individually. The device also includes voltage and current input diagrams, providing a clear visual representation of the readings. With a frame rate of 10 frames, real-time observation of voltage and current changes is possible.In terms of value for the price, the FNIRSI SG-003A signal generator offers excellent features at a reasonable cost. Compared to similar products on the market, it stands out with its compact size, long battery life, and precise performance. The device's versatility and ease of use make it suitable for professionals in the industrial field.During my personal experience using the ANKONG SG-003A signal generator, I found it to be reliable and efficient. Its portability allowed me to carry it easily while working on-site. The clear and detailed readings on the high-definition TFT color LCD screen made my job more manageable. I particularly appreciated the flexibility provided by the output custom function, as it allowed me to tailor the device to my specific needs.In terms of improving my work routine, the FNIRSI SG-003A signal generator has streamlined my debugging and testing processes significantly. With its precise output and real-time observation capabilities, I can quickly identify and address any issues in industrial field PLCs, process instrumentation, and electric valves.While the ANKONG SG-003A signal generator has many strengths, there are a few minor concerns. The resolution of the TFT color LCD screen could be higher for even more detailed readings. Additionally, the device could benefit from additional documentation or user guides to assist new users in navigating its features effectively.In conclusion, the ANKONG SG-003A 4-20mA 0-24V Signal Generator is an exceptional tool for industrial field professionals. Its compact size, long battery life, and user-friendly interface make it a standout choice. With its precise performance and customizable output functions, it offers great value for its price. If you're in need of a reliable and efficient signal generator for PLC debugging and process control, the FNIRSI SG-003A is definitely worth considering.

If the headline makes any sense to you, read on.Of course, this isn't a Fluke 789 and I don't expect it to do everything the Fluke can do, but what it does do, it does well and works perfectly fine. I used it to test calibration and scaling of a group of analog inputs into an industrial process control PLC. I verified the input values by monitoring the tags in a 1756-L73 processor running v33 firmware. It did exactly as you would expect. Compared to the Fluke, it seemed to consistently run between -1.5% to +1.0% variance. That was the only actual functional difference I saw and I would consider it within acceptable tolerances for the equipment I use it on.As for usability, clarity, and ease of use, it seems a little less polished than the Fluke and of course, it has its own learning curve but I don't necessarily hold that against it.It is completely unfair to compare this to a $1,200 professional piece of equipment, but that is what I did and I can say I am 100% pleased with the results. I am confident in using this for quick spot checks, as a backup, or for home use (yes, my hobbies at home are slightly nerdy too).The only negative is it comes with a Europlug for charging. This isn't a big deal as it actually charges via USB-C so you basically need a charging brick that fits into your preferred AC outlet. I doubt the people that are picking up function generators are going to be stumped on how to charge a USB-C device.I like it. Great price and professional results. The professional model literally costs more than 10x more than this does and you will get comparable results. buy this with confidence.