English — Forum #350 (Page 22/163)

1. Thermal resistance issue - HCBBS Forum
2. Cable shield grounding - HCBBS Forum
3. "Level and flow instruments: Design and manufacturing applications》 - HCBBS Forum
4. Excel sheets are commonly used for calculations in personal instruments - HCBBS Forum
5. Are the data obtained from the orifice plate flowmeter data sheet at standard conditions or under actual operating conditions? - HCBBS Forum
6. Do electrical appliances with increased safety grade EXE need to indicate the zone and group? - HCBBS Forum
7. INTOUCH tutorial sharing for those who need it - HCBBS Forum
8. How should the air supply pipes for the valves connected to units with high vibration levels be arranged? - HCBBS Forum
9. PLC system issues - HCBBS Forum
10. Difference between SILA and SIL0 in SIL classification - HCBBS Forum
11. 【Design Institute】The parameters of the gas flow meters supplied for process control instruments are all in standard cubic feet; how do the flow meter manufacturers select the appropriate models? - HCBBS Forum
12. How are two differential pressure transmitters switched for measurement in a DCS system? - HCBBS Forum
13. Is it necessary to keep a record of pressure gauges? - HCBBS Forum
14. Is protective grounding required for the metal enclosures of field instruments? - HCBBS Forum
15. Pressure transmitter with a common gauge pressure of 5 Paa - HCBBS Forum
16. Please ask for electric valve wiring diagram. . - HCBBS Forum
17. Are SIS (Safety Instrumented Systems) installed in ultra-supercritical circulating fluidized bed boiler power generation units? - HCBBS Forum
18. Signal alarm interlock issues - HCBBS Forum
19. Flammable and toxic gas detectors - HCBBS Forum
20. Can strong and weak current cable trays be installed on the exterior walls of Class A warehouses that constitute major hazard sources? - HCBBS Forum
21. Video tutorial on using Siemens S7-1200 series PLCs for Modbus TCP\RTU\ASCII\Socket communication - HCBBS Forum
22. How to determine the pressure before the gravity-driven self-acting control valve - HCBBS Forum
23. Can control cables be used as power cables for control cabinets? - HCBBS Forum
24. Wiring method for 220VAC power cables in Class A workshops - HCBBS Forum
25. Compressor model issue - HCBBS Forum
26. What are some excellent domestic solenoid valves and positioners? - HCBBS Forum
27. Series of articles on automatic control engineering design: Engineering design procedures - HCBBS Forum
28. Bentley - HCBBS Forum
29. Dinghua Radar Knowledge Lecture: Advantages of 26G High-Frequency Radar Level Meters - HCBBS Forum
30. Recommended pressure gauge brands - HCBBS Forum
31. Are 1/2’’ and DN15 pipes the same type of pipe? - HCBBS Forum
32. For UPS systems, experts require third-party test records of UPS charging and discharging operations. - HCBBS Forum
33. Are there any materials on SIS that experts have shared? - HCBBS Forum
34. In the common ball valve demonstration animations found online, there are often scenes showing fluid entering the interior of the valve – does this refer to floating ball valves? - HCBBS Forum
35. Switch configuration issue - HCBBS Forum
36. Gas dilution device - HCBBS Forum
37. Toxic gas setpoint - HCBBS Forum
38. How to choose the depth of insertion for the thermometer on this device - HCBBS Forum
39. Cable outer diameter - HCBBS Forum
40. **Occupational Standard for Chemical Instrument Maintenance Technicians (2005 Edition)** - HCBBS Forum
41. Does a mass flow meter have a throttling effect? - HCBBS Forum
42. For flow control in chemical plant design, is it better to use variable-frequency pumps or instrument control? - HCBBS Forum
43. Dinghua Radar Knowledge Lecture: An Overview of the Applications of Radar Level Gauges in the Industrial Sector - HCBBS Forum
44. What type should be chosen for HF flow meters? - HCBBS Forum
45. Tank area isolation valve - HCBBS Forum
46. Symbols of communication signals - HCBBS Forum
47. Using safety barriers, intrinsically safe cables, and explosion-proof instruments are all aspects of intrinsic safety - HCBBS Forum
48. PCS7 - HCBBS Forum
49. I have a small question regarding the Modbus protocol - HCBBS Forum
50. Personal Excel calculation tool for private use – packaged for download - HCBBS Forum
51. Unfazed by 27.6 Mpa pressure in gas-liquid separation, it offers reliable external sensing – Dinghua’s external level switch has been successfully applied in high-pressure gas-liquid separators! - HCBBS Forum
52. Coriolis mass flow meter - HCBBS Forum
53. The operation status of the three-way valve when there is no air flow is marked as FOAB; how should this be understood? - HCBBS Forum
54. Issues related to the outdoor installation of cables in the Northeast region - HCBBS Forum
55. The three most basic types of Rosemount 3051 transmitters are gauge pressure, absolute pressure, and differential pressure - HCBBS Forum
56. Calculation software - HCBBS Forum
57. User manual for FW243X in English - HCBBS Forum
58. Does the junction box need to have flange fittings? - HCBBS Forum
59. Principle of external level gauges - HCBBS Forum
60. The pH meter readings keep fluctuating frequently; I’m seeking help from everyone here - HCBBS Forum
61. Select interlock signal: off, on, 0, 1 - HCBBS Forum
62. What is the name of the transparent communicating vessel installed on the side of the device? - HCBBS Forum
63. I have two questions for the experts here - HCBBS Forum
64. Plant-wide power outage for maintenance - HCBBS Forum
65. Discussion on SIS interlock design (the content of the previous post was incorrect; revised) - HCBBS Forum
66. About the operation of ADMS electro-hydraulic valve - HCBBS Forum
67. Regular calibration of pressure gauges is truly time-consuming and costly, and it only brings disadvantages! - HCBBS Forum
68. Dinghua Radar Knowledge Lecture: What exactly does the antenna of a radar level gauge do? - HCBBS Forum
69. When there is interference between electrical instruments - HCBBS Forum
70. Discussion on the specifications for combustible gas detectors - HCBBS Forum
71. The E+H ultrasonic level gauge FMU42 features only a loose-flange design – can it be connected properly using a regular flange? - HCBBS Forum
72. Ultrasonic level gauge and radar level gauge - HCBBS Forum
73. Cologne mass flow meter - HCBBS Forum
74. PKS simulation - HCBBS Forum
75. The difference between FRC and FIQ - HCBBS Forum
76. Should an emergency shut-off valve for the material inlet and outlet pipelines at the bottom of a liquid hydrocarbon storage tank be equipped with a handwheel? - HCBBS Forum
77. Help: Can a high-frequency radar level gauge penetrate 20 meters of oil? - HCBBS Forum
78. Is it necessary for the wall thickness of the pneumatic valve air supply pipeline to be greater than 1 mm? - HCBBS Forum
79. 【Ten Years of Great Progress in Chemical Technology】247-2023: China Petrochemical’s first intelligent oil depot management system was fully launched - HCBBS Forum
80. Questions regarding UPS power supply specifications - HCBBS Forum
81. Issues with the scale readings - HCBBS Forum
82. Problem of using differential pressure to measure liquid level - HCBBS Forum
83. Vortex flow meters for measuring steam and gases - HCBBS Forum
84. Application of ELL-FI external level gauge in liquid chlorine storage tanks - HCBBS Forum
85. A parameter issue regarding pneumatic switch butterfly valves - HCBBS Forum
86. Thank you - HCBBS Forum
87. How is the diaphragm inserted into a diaphragm pressure gauge? - HCBBS Forum
88. Are gas probes installed on the grid platform? - HCBBS Forum
89. Regarding dust explosion prevention - HCBBS Forum
90. Location of the thermometer port on the container - HCBBS Forum
91. On the working principle of gas path amplifiers - HCBBS Forum
92. I would like to ask how to add new variables to the historical alarm window in KingView - HCBBS Forum
93. Operating conditions for selecting double-flange differential pressure transmitters - HCBBS Forum
94. What are the main regulations for instrument inspections? - HCBBS Forum
95. The ELL sonar-type external level gauge solves the problem of measuring liquid levels in nitric acid tanks! - HCBBS Forum
96. Can anyone share the pdf of instrumentation and operation management manual for petroleum and chemical enterprises? - HCBBS Forum
97. Maximum number of heating points per steam tracing branch - HCBBS Forum
98. 【Haichuan – Insights from Others】One-click switching of device alarm settings based on operating conditions - HCBBS Forum
99. Purchase of control valves - HCBBS Forum
100. Selection information (Japanese Kaneko solenoid valves) - HCBBS Forum