English — Forum #350 (Page 39/163)

1. I would like to ask why pressure transmitters have two different explosion-proof temperature groups indicated on them - HCBBS Forum
2. Brothers, is it necessary to take shock protection measures when installing pressure transmitters near pumps? - HCBBS Forum
3. How does the pump outlet pressure transmitter withstand vibration? - HCBBS Forum
4. Everyone, take a look at my DCS and SIS interlock logic diagram to see if there are any issues with it - HCBBS Forum
5. Seeking advice on selecting a flow meter for low flow rates - HCBBS Forum
6. Do large control valves all come with air tanks? - HCBBS Forum
7. How to deal with instrument corrosion? These 5 methods are worth keeping - HCBBS Forum
8. Orifice flow meter plus air blowing - HCBBS Forum
9. [Repost] Practice of Using Cage-Type Plug Valves for Slag-Acid Regulation Valves in Rotary Drum Compound Fertilizer Production Units - HCBBS Forum
10. Execution process of imported systems from abroad - HCBBS Forum
11. Which standard should be followed for determining the opening location of CEMS systems used for online chimney monitoring? - HCBBS Forum
12. I can never tell the difference between pressure transmitters and temperature transmitters. How can I quickly distinguish between them by their appearance? - HCBBS Forum
13. How to manually control a solenoid valve switch - HCBBS Forum
14. I have a question regarding the length of the nozzle - HCBBS Forum
15. Can the following letter I be used for the display of digital values? - HCBBS Forum
16. Let's see if there is any problem with this interlocking logic. - HCBBS Forum
17. Gas fire suppression installation in the cabinet room - HCBBS Forum
18. Seeking advice on the design of automatic control instruments - HCBBS Forum
19. DELTAV system process history trend issue - HCBBS Forum
20. Can the Fisher 6200 locator function properly without installing sensor elements? - HCBBS Forum
21. I’ll draw an interlock diagram for everyone to take a look at - HCBBS Forum
22. EJA transmitter - HCBBS Forum
23. Regarding SIL certification - HCBBS Forum
24. Selection calculation for instrument air compressors - HCBBS Forum
25. Issues with the setting of alarm values for toxic gases - HCBBS Forum
26. P+F safety barrier circuit voltage issue - HCBBS Forum
27. I would like to know what the principle behind pipeline static electricity bonding wires is If it is the drainage of the acetylene main pipe and no jumper wire is connected, will static electricity then react with acetylene? - HCBBS Forum
28. Please ask the teacher to analyze the reasons for the malfunction of the safety barrier cabinet - HCBBS Forum
29. Security certification qualifications - HCBBS Forum
30. What is the distance between the acidic wastewater tank and the cabinet room? - HCBBS Forum
31. Dear teachers, I would like to ask for your advice on selecting pressure gauges for operational conditions! - HCBBS Forum
32. Requirements for the straight pipe section of flowmeters are specified - HCBBS Forum
33. Ten methods for diagnosing faults in chemical process instruments - HCBBS Forum
34. Are fire hydrants installed in the control room and cabinet room? - HCBBS Forum
35. In the hall where the DCS operation computers are located in the control room, must the floor be made of anti-static flooring? - HCBBS Forum
36. Must the characteristics of the control valve body and the positioner in the data sheet be identical? - HCBBS Forum
37. Can communication cables (485 or Ethernet cables) be run together with AI, AO, DI, and DO signal cables? - HCBBS Forum
38. In HG 21581-2010, why are the connection methods for PN63 and PN160 different in the diagrams showing the gas pressure pipeline connections (is a top exhaust valve required for high pressure)? - HCBBS Forum
39. Issues with pressure transmitters in the tank area - HCBBS Forum
40. Ministry of Emergency Management: Remote level gauges for liquid chlorine storage tanks must be external type level gauges that measure the level from outside the tank! - HCBBS Forum
41. The loading station does not match the EMERSON mass flow meter - HCBBS Forum
42. The pressure transmitter is displayed on the touch screen###### - HCBBS Forum
43. Can the probe of a toxic gas alarm be replaced with one from another manufacturer? - HCBBS Forum
44. Detailed guidelines for using radar level gauges and methods for installation inspection - HCBBS Forum
45. I’m curious about what side jobs instrument engineers can take on - HCBBS Forum
46. Are there any special requirements regarding control valve packing? - HCBBS Forum
47. Dinghua Electronics debuted in Huizhou to help transform the safety instrument systems of chemical (hazardous chemical) enterprises in South China! - HCBBS Forum
48. How are the flat diaphragm and convex diaphragm chosen for differential pressure level gauges? - HCBBS Forum
49. Numbers on the flow chart - HCBBS Forum
50. Let’s take a look at this interlock logic diagram and discuss it - HCBBS Forum
51. Wiring - HCBBS Forum
52. Regarding temperature and pressure compensation - HCBBS Forum
53. Comprehensive Management System for Safety Instrumented Interlock Protection Systems - HCBBS Forum
54. Do pressure gauges on pressure vessels fall under the equipment specialty or the instrumentation specialty? - HCBBS Forum
55. Accuracy issues with turbine flowmeters and vortex flowmeters - HCBBS Forum
56. E+H Pressure Transmitter Selection Manual - HCBBS Forum
57. Is it necessary to shut off the power for on-site operations of chemical instrumentation? - HCBBS Forum
58. Installation requirements for vortex flowmeters during use - HCBBS Forum
59. Setting of the toxic gas alarm threshold for bromine gas - HCBBS Forum
60. Seeking help with data conversion for Emerson vortex flowmeters - HCBBS Forum
61. Reasons for fluctuations in the output of electromagnetic flowmeters and solutions - HCBBS Forum
62. Saw a good article, sharing it - HCBBS Forum
63. Newbie’s question regarding the structure of control valves - HCBBS Forum
64. Installation and principle of the air-bleed type level gauge - HCBBS Forum
65. Questions about the compensation principle of the Rosemount temperature variable ambient temperature bridge? - HCBBS Forum
66. Do you produce refined oil? - HCBBS Forum
67. Quality of instrument air supply - HCBBS Forum
68. Issues with loading flow meters - HCBBS Forum
69. It’s a boiler differential pressure transmitter; however, the display shows nothing. The inter-terminal voltage measures 22.8V. What could be the cause of this? - HCBBS Forum
70. IDS-4 series intelligent viscosity meters - HCBBS Forum
71. Air separation gas dew point meter - HCBBS Forum
72. Common problems encountered when using overpressure transmitters and their solutions - HCBBS Forum
73. I’d like to ask how to draw the legend for the pressure switch in PID - HCBBS Forum
74. What are the current configurations for DCS, mainstream DCS operation stations, and engineer stations? - HCBBS Forum
75. Nanjing Keyuan DCS NT6000 installation package - HCBBS Forum
76. Is a vacuum gauge the same as a negative pressure gauge? - HCBBS Forum
77. \"Instrument Repair Technician\" published by Sinopec Press - HCBBS Forum
78. Does Zhejiang University Zhongkong have pressure transmitters? - HCBBS Forum
79. Can there be an IO cabinet on-site for two key points and one major location? - HCBBS Forum
80. Reactions in chlorination reactors for fine chemicals - HCBBS Forum
81. A brief analysis of the application of radar level gauges in the chemical industry - HCBBS Forum
82. Draft guidelines for factory inspection of 3–35KV high-voltage switchgear - HCBBS Forum
83. Hydrogen embrittlement of stainless steel materials - HCBBS Forum
84. Zero drift of the toxic aniline probe - HCBBS Forum
85. Do gas stations need to install combustible gas detectors? - HCBBS Forum
86. Items to be checked for instruments prior to trial production - HCBBS Forum
87. What do the following characters represent respectively? - HCBBS Forum
88. I need the activation code for VM 16; please help me out, guys - HCBBS Forum
89. Who provides the control logic for new chemical plants? - HCBBS Forum
90. Question regarding the pressure measurement location for gases - HCBBS Forum
91. HollySys: How can trend data copies be retrieved and viewed on a computer? - HCBBS Forum
92. Selection of specifications for pressure measurement condensation containers - HCBBS Forum
93. Issues with instrument reserves and density. - HCBBS Forum
94. Can the valve cages of electric/pneumatic control valves be interchanged? Can the valve cages from different manufacturers be interchanged? - HCBBS Forum
95. Regarding the issue of thermocouple compensation wires - HCBBS Forum
96. GDS for fine chemicals - HCBBS Forum
97. Precautions for installing external level switches and issues related to instrument calibration - HCBBS Forum
98. Please； New employee DCS usage training materials - HCBBS Forum
99. Seeking help with issues regarding bellows-sealed control valves - HCBBS Forum
100. Selection of diaphragm material for diaphragm pressure gauges - HCBBS Forum