Boiler electric contact diaphragm pressure gauge
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RT would like to discuss with everyone: are there any good manufacturers that produce electric contact diaphragm pressure gauges for use in such boilers to control the furnace pressure? We are currently using model YEJ-121 from Shanghai Instrument Factory, the Baiyun brand. The quality seems to be rather unstable, and the manufacturing precision is not that high. And it has a high failure rate. The range we need is +/− 200 Pa, with an electrical contact whose position can be adjusted to define the operating range for negative pressure. Manufacturers both domestically and abroad can be recommended; this instrument is crucial for our system. I would appreciate your advice.
1. How many alarm contacts does the diaphragm gauge you are using have? 2. A differential pressure transmitter + display alarm unit, or a differential pressure alarm controller, can all provide relay-based alarm signals. 3. The pressure level is extremely low, and zero drift is the main source of error in pressure gauges; it is crucial to determine whether accurate measurements can be obtained over time. 4. For a range of ±200Pa, if you want high-quality products – products that can defy those Japanese and Nazi scum – come to me, Brother Pig. {:3_51:} I want to post some materials, but today the function for uploading pictures and files on the forum isn’t working
In this post, there are pictures and materials shared by a brother: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1935992&extra=page%3D1&page=1
Bro, we need electrical contacts. We also provide differential pressure transmitters, Yokogawa EJX110
It is recommended to use Beijing Brady in China, and Wika in Germany abroad. Romon also offers a model with wireless remote transmission; it has a high voltage tolerance level as well
I asked at Beijing Brady, and it seems like there isn’t any. WIKA doesn’t seem to have models with such a small range either. It’s from Romon; let me take another look. Thank you
1. The “electrical contacts” used in those diaphragm gauge tables are nothing but contacts of 220V/3A, right? —— This is the same as the capacity of the output relay in conventional commercially available secondary meters. Additionally, a relay is also a type of electrical contact. 3. The dial of the diaphragm gauge is unstable; then, is that Japanese junk stable? If it’s stable, use 2 Japanese dogs for digging; one dog goes into the DCS, and the other dog has a gauge attached to it – it’s basically a \"electrical contact\". 4. Drift at zero pressure is a serious problem for micro-pressure gauges. . . Diaphragm gauge, a worthless piece of junk with unstable readings; no matter whose it is, it’s all the same shitty quality – that’s just its nature :lol
Traditional electrical contacts can be a bit dirty :lol Let’s give everyone a chance to take a look at the two types of \"electrical contact\" tables that use relay-based output. . . . Post more information again
If it’s important to you, I recommend: 1) choosing a pressure transmitter with an alarm output device, and 2) using a redundant configuration. I currently believe that this type of gauge is a pressure gauge that is not yet as reliable as those available in the world.