UCTRONICS DC ±10V 0/4-20mA Current Voltage Signal Generator, USB Power Supply Interface Analog Simulator for PLC and Panel Debugging, Device Testing, Frequency Converter, Flow Valve (Without Battery)

I needed a way to simulate a 4-20mA signal, as from a piece of industial equipment. I needed it fast and my multimeter did not have this function (I know of others that do). I did have a little trouble figuring out where to connect the wires for simulating 4-20mA and then where to connect my wires to simulate 0-5vdc. But even with my very limited electronics experience and my (very) cheap (free) multimeter (from Harbor Freight), I was able to figure out the polarity and connections for 4-20mA and 0-5vdc. The manual was not real helpful to me, so I've included pictures labeling where I connected my wires. But I believe the Fluke multimeter that would simulate these test signals is several hundred dollars. In the meantime, this device works great. -T

This simulator will do 0-10, 2-10 2-5, 0-3.3 Volts and 0-20, 4-20, 0-22 ma. It will display output value, percent of range or 0 to 50 HZ (not so useful in the US). It can be calibrated and the encoder steps can be adjusted. It is not likely to hold up to daily use in an industrial environment but for someone like myself that on occasion needs to simulate a transducer, it is perfect. I also purchased a micro usb to micro usb charging cable. I can use my phone to power the unit on the rare occasions that I need it without worrying about batteries or separate power supply.

Works pretty well. Was off by about 10% when I got it but was able to get it calibrated pretty close after fiddling around with the instructions. It does NOT come with a built in battery and you need to power it externally. However, I took it apart and found a 2 pin connector for a lipo. I checked the charge voltage which was 4.25v which is on the high end for a 3.7v lipo. I picked up a small lipo pack and plugged it in and now I have an internal battery. It seems to charge off of the micro USB and it hasn't blown up in my face yet. I'd recommend keeping the instructions handy as it's not very straight forward when calibrating or going through settings.

Built great for troubleshooting

Not stepless as described. Not clear about not having a power cable. It should have a power cable. Yeah it's easy to get a power cable, but u don't have a micro USB charger on hand, so I have to wait 3 more days to use it, when I could have ordered it in the first place.

For testing and debugging works great

So this is the first generator we’ve bought so this is coming from a first time novice: it’s pretty small. I thought we were going to end up having this bulky machine, but it’s actually very discrete. Now, this is my hubby’s and he knows way more about this stuff than I do and he says it’s cool. So for meee, I’m just very happy we don’t have a large eyesore in our living room lol! It’s definitely worth it if you’re looking for something visually unobtrusive.

I use this for PLCs and testing. It works great and it's fairly accurate. I haven't seen it off by more than .1% which is fine for most uses.

Simple easy to use

アナログ入力機器のオフセット・ゲイン設定には十分な性能4-20ｍA出力はデジタルテスターで0.03ｍｍ～0.23誤差なので範囲でしょう。 今までＨＩＯＫＩのアナログソース（11万相当）を使ってましたが遜色ありません。電源もUSBなので手軽。そして安価でお勧めです

Good quality product, delivered quickly, and exactly as described.

My it's a great value.

安価ですが出力表示とテスターの値はほぼ同じですのでコントロールバルブの開閉用途なので十分かと