Please recommend a frequency digital display with good quality
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We are currently using Hongrun’s digital tachometers, which are of poor quality; both of them stopped working after less than half a year of use. Who can recommend a manufacturer with good quality? Receives the speed signal and outputs 4~20mA. Thank you.
This post was last edited by budaoweng123 on 2018-4-5 at 15:42. You can consider JAQUET – a Swiss-made brand specialized in producing tachometers; it’s definitely much more expensive than Changhui’s products. A.I.TEK is also a specialist in producing speed probes and tachometers; they are American-made products with quality that is even better than that of Jetek. I have seen P+F products at the site before, but he has specific requirements for the speed probes used there – they need to be of the Naumr type. Model KFD2-UFC
Shanghai Tachometer Factory – in use To date, 15 years already
1. The tachometer, I guess, is the type of gauge found in secondary instruments; it’s the one with the lowest level of technical complexity, without a doubt. . . This watch breaks every six months, which doesn’t seem right. 2. Additionally, is your power supply “clean”? The power supply quality is too poor; sometimes, when power is restored after a blackout, it can damage the switching power supply – the switching power supply units in some secondary meters do not have very good interference resistance. 3. What’s with secondary watches? After all, they are watches that come at a very low price; it’s unreasonable to expect them to have excellent performance. When the quality of the power supply is poor, one can install a transformer that converts 220V AC to 220V at the AC supply section – this costs only a few dollars, yet it can **significantly improve the quality of the power supply. As for what wealthy people use to treat their power supplies, I won’t go into that. . . Rich people don’t even need paper to wipe themselves; with just a button press, the shower head spins to clean their anus. :lol
It’s simple: why aren’t there power supplies with better quality?