Where can I check whether the instrument still requires a production license?
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For example, flow meters, pressure gauges, and pressure transmitters – these key types of instruments require a license to manufacture. Although the production license system has been abolished now, type certification exists, and it’s essentially the same thing. As for magnetic flap switches, which are simply types of connectors, can’t anyone weld them? Is a license still needed? What about thermocouples, thermal resistors, and bimetallic devices – these simple instruments do they also require a license? And what about float switches and magnetostrictive sensors? It seems that any electronics factory can produce these, and no one seems to check on it. Take those common small water level float switches found in the market for example; it seems hardly necessary to have a license for them. A farmer can just bend a steel pipe and attach a reed switch to it, and it’ll work. Can you really say that’s illegal?
**Cancel production licenses for 19 types of products: 1. Tax-controlled cash registers; 2. Oil pumping equipment; 3. Drilling suspension tools; 4. Blowout preventers and blowout preventer control devices; 5. Electrical fittings; 6. Transmission line towers; 7. Copper and copper alloy pipes; 8. Cotton processing machinery; 9. Motorized threshers; 10. Factory-made glasses; 11. Products made from aluminum and titanium alloys; 12. Batteries; 13. Rubber products; 14. Electrical rectifiers; 15. Geotechnical engineering instruments; 16. Pumps
This post was last edited by 1111111 on 2019-8-10 at 11:58. After all, the vast majority of measurement activities are not related to issues of fairness in transactions or deliveries, nor to public health or safety concerns. In most cases, measuring instruments are used as components for automated control; it is sufficient for these instruments to be able to detect changes in the quantity being measured in order to meet the control requirements. . . The measurement accuracy of the instrument is a secondary issue. . . Even if the instrument is not very accurate or reliable, it can be perfectly compensated for through other inexpensive technical methods. For example, the 4–20mA continuous level gauge installed on the tank is not very accurate; however, there are two additional level switches on the tank, and these switches are interlocked with the pumps and valves to ensure that the liquid neither overflows nor runs out. For another example, the radar level gauges installed on the storage tanks sometimes give false readings – they may report that the tank is full when it’s actually empty, or vice versa. There are also cases where the readings don’t change at all. However, chemical plants have many instrument technicians on standby to deal with such issues. As soon as the radar gives a false reading, the technicians immediately cut off its power supply, or switch to manual control mode. Thanks to this, the tanks never run out of fluid or overflow. . . To go a bit deeper, the technician who climbs up the tank to clean the radar level gauge is also performing a skill, a craft; if they do it well, they can stay employed for life.... {:2_42:}
Those type tests conducted to verify accuracy in terms of measurement are completely useless when it comes to the operational reliability of the instrument, or to determining how long it can operate without failure. The technical quality of a meter is determined by its design; its performance and quality are determined by the manufacturing process. There’s really no need for some sort of \"license\" system for meters. **That’s right**, it makes perfect sense. . . Those who are interested and capable should go ahead and design and manufacture new instruments, then promote and sell them. If they sell well, it’s possible to create entirely new social needs; in popular terms, this means establishing some kind of “ecosystem”…… For example, the iPhone, which overturned traditional norms and created a new trend – Steve Jobs, through his efforts, helped to advance humanity......
Isn’t type certification also a mandatory requirement at the moment? Although the production license has been abolished, type certification is introduced in its place – isn’t that just changing the name while leaving everything the same?
Type certification for measuring instruments has existed in the past. In the past, after type approval was obtained, additional assessments were carried out on the site, equipment, personnel, and other conditions; once all these conditions were met, a manufacturing license for measuring instruments would be issued.
This post was last edited by 1111111 on 2019-8-12 07:39. Don’t overthink it; just do what needs to be done. Big bosses with **significant resources** don’t care about spending 80,000, 100,000, or N million on certification; they’d be willing to spend even the smallest amount to get it done. . . The biggest use of certification is probably to help big bosses show off, I guess. Only mature instruments with national standards and inspection regulations, such as pressure gauges and pressure transducers, can undergo type certification. If you invent a new instrument for which there are no national standards or testing regulations, then I wouldn’t know how to carry out type certification – what standards should be used for such certification? Who should be in charge of the certification? One should not always focus on measuring instruments from the perspective of those instruments themselves; instead, it’s necessary to understand them from the standpoint of automated measurement and control components. One should consider whether such instruments can meet the requirements of industrial measurement and control, and if they can, then that’s fine. Radar maniacs, sonic wave maniacs – those two intermittent lunatics. Even if they pass type certification, would you dare treat them as measuring instruments? I don’t dare; the time stability is terrible – it’s as bad as poop. How can I trust their measurements at all times?
I added a sentence in the morning to revise the post; the one I wrote last night is now gone, huh?! ,,,,, Damn it, pen guy, ugh~~~~~~~ :P