Domestic brand transmitters
Thread Content
With the rise of Chinese manufacturing, many domestic products have made significant technological advancements. Currently, there is a need to find out what domestic brands of pressure/differential pressure transmitters and temperature transmitters are available with an accuracy higher than 0.075%. Everyone is welcome to join the discussion.
Domestically, there are Chuangyi, Wiltech, Ligee, and Delson
Guangzhou Paisheng, PARSEN
**In the calibration specifications, there are 0.05 grade and 0.1 grade, but no 0.075 grade. . . . . 0.075? That’s pseudo-precision; it’s nothing but poorly accurate. :Come and take a look at the items with 0.01-level precision. . . As early as 17 years ago, we already created the 0.01 grade. . . .
Why do you need such high precision? Grade 0.2 is generally sufficient. The focus is on reliability and drift amount
Do you have any experience in measuring low-concentration ammonia solutions, and what is the measurement range?
Above is a series-type density and concentration measuring instrument that I modified out of inspiration in 2006 or 2007 – I can’t remember exactly which year; 4 sets were sold back then. Later, I changed the concept of measuring density and concentration simultaneously to a parallel configuration – the advantage of this approach is that the density and concentration can be output simultaneously. Below is the schematic diagram, as well as a picture of the device in its parallel configuration; it measures the density and concentration of the slurry. The conversion table for density and concentration was provided by the ordering party, and we have programmed it into the system. . When they ask me about our performance, it’s actually quite difficult for me to give a clear answer – many of the instruments were sold, and we don’t know which organizations or locations the Automation Company used them in. Our factory doesn’t engage in business development or customer outreach; everyone stays in this small factory, working from sunrise to sunset, with plenty of work to do and no time to relax.
I also think that a precision of over 0.075 is nonsense; in chemical production I’ve encountered, such high requirements aren’t necessary – 0.1 is more than sufficient. The emergence of these high-precision transmitters made even our 0.1 standard meters want to cry.
1. The vast majority of industrial applications do not require ultra-high precision. 2. But for those who manufacture instruments, if it’s not possible to create high-precision instruments, then the question arises: how can the level of drift be reduced further? How can reliability be improved, and improved further? 3. In the pitch-black darkness, it’s impossible to discuss reliability in such conditions — trying to move around without hitting any walls may work by luck, but luck cannot be considered a real skill. 4. The reliability of measuring instruments is determined by a number of technical specifications – the ability to produce instruments with a precision of 0.01 level means that all the technical means necessary to achieve high reliability are under control. When we transplant those highly reliable technical methods to create instruments with lower precision – it can be said that the more reliable we try to make the instruments, the more reliable they will be. Do as you please – that makes things more interesting.
It’s like a revelation, as if bathed in the warmth of spring breeze: handshake