English — Forum #350 (Page 32/163)

1. I have a tower kettle pump with a control valve at its outlet; when the flow rate is high, the control valve vibrates. This vibration stops when a bypass is used. What is causing this? - HCBBS Forum
2. Which teacher can provide templates for interlock and process changes - HCBBS Forum
3. Looking for a solenoid valve connection diagram and explanation. - HCBBS Forum
4. Differential pressure switch brands - HCBBS Forum
5. Look for the contact information of qualified agencies in Gansu that can verify instruments and equipment - HCBBS Forum
6. Seeking help regarding nitrogen flow rate and flow meter - HCBBS Forum
7. What does the instrument logic in the dashed box in the diagram mean? - HCBBS Forum
8. Revealed! What ‘cutting-edge technologies’ do central control systems rely on to power the key components of gasification furnaces? - HCBBS Forum
9. Analysis Shack - HCBBS Forum
10. Liquid flow meter with a minimum flow rate of 0.3 L per hour - HCBBS Forum
11. Selection of valve body material - HCBBS Forum
12. Replies and discussions - HCBBS Forum
13. Application of external level gauges in hazardous tank areas - HCBBS Forum
14. Blowout valve pressure gauge - HCBBS Forum
15. Questions about thermal resistors - HCBBS Forum
16. Hollyland hardware - HCBBS Forum
17. Selection of concentration monitoring instruments - HCBBS Forum
18. Brief description of external-mounted level gauges - HCBBS Forum
19. Instrument training books - HCBBS Forum
20. Regarding the stages of nitrogen sealing - HCBBS Forum
21. Division of labor between automation engineering and other majors - HCBBS Forum
22. Sealing issues with the pressure gauge on the heat transfer fluid pipeline - HCBBS Forum
23. Is it possible to modify the variable range of Chint Zhongzi DCS? - HCBBS Forum
24. What signals does the GDS need to transmit to the fire alarm system? - HCBBS Forum
25. Questions about combustible gas detectors - HCBBS Forum
26. Is it necessary to install surveillance in the operation room, cabinet room, and fire control room? - HCBBS Forum
27. Stepless adjustment of reciprocating machine - HCBBS Forum
28. The remote signal from the magnetic flap level gauge fluctuates, and an alarm is triggered suddenly at full scale – what could be the cause? - HCBBS Forum
29. Work contents for the maintenance of instruments in generator turbine units - HCBBS Forum
30. Is it necessary to consult the design institute for any changes to the interlocks in a DCS system? - HCBBS Forum
31. Dinghua Tuning Fork Lecture Hall | Common Faults and Solutions for Tuning Fork Level Switches - HCBBS Forum
32. What are the job responsibilities that instrument technicians must be aware of? - HCBBS Forum
33. Fault symptoms and troubleshooting methods of the Rosemount 475 handheld transmitter - HCBBS Forum
34. Request for GB/T41261 download - HCBBS Forum
35. The Hilsch M6 simulation mode cannot be downloaded - HCBBS Forum
36. Is there a concept of leakage rating for shut-off valves? - HCBBS Forum
37. Sharing the Table of Contents for I&C Design Specifications (Part 1): System Design - HCBBS Forum
38. Electromagnetic flowmeter loss of excitation alarm - HCBBS Forum
39. Please tell me what this logic diagram means - HCBBS Forum
40. The Siemens positioner displays FL127.9 - HCBBS Forum
41. Seeking help with fluctuations in differential pressure level gauges - HCBBS Forum
42. Is it necessary to install a blind flange on the drain valve located below the magnetic flap level gauge? - HCBBS Forum
43. The pneumatic control valve is equipped with a handwheel and cannot open or close automatically - HCBBS Forum
44. What type is used for pneumatic isolation valves in large-diameter hydrogen pipelines? - HCBBS Forum
45. DCS point allocation - HCBBS Forum
46. General principles of instrument design - HCBBS Forum
47. Seeking advice on flow meter selection - HCBBS Forum
48. Step-by-step guide to performing SIL calculations - HCBBS Forum
49. For the material toluene, should a combustible gas detector or a toxic gas detector be installed? - HCBBS Forum
50. Ask a question post - HCBBS Forum
51. Yokogawa DCS cascade automatically switches to manual mode - HCBBS Forum
52. Brothers, why can flow meters be measured through a bypass pipe? - HCBBS Forum
53. Application and Solutions of Ultrasonic External Level Switch in Tank Farm Renovation - HCBBS Forum
54. Electric valve control circuit - HCBBS Forum
55. Common LNG instruments - HCBBS Forum
56. Questions about explosion-proof junction boxes - HCBBS Forum
57. Safety barrier issue - HCBBS Forum
58. Isolation valve - HCBBS Forum
59. Working principle of optical oxygen sensors - HCBBS Forum
60. Have you used a safety relay? - HCBBS Forum
61. Precautions for installing radar level gauges - HCBBS Forum
62. Questions about the solenoid valve when the regulating valve is shut off with interlock - HCBBS Forum
63. Selection of level gauges - HCBBS Forum
64. JK8404 Visual Online Microwave Moisture Meter - HCBBS Forum
65. Control valve - HCBBS Forum
66. Regarding cable laying and local cabinet grounding issues - HCBBS Forum
67. Non-contact level measuring instrument – ELL external level gauge - HCBBS Forum
68. Something on the instrument air pipeline - HCBBS Forum
69. Pressure transmitter - HCBBS Forum
70. Causes of failures in instrumentation and control systems - HCBBS Forum
71. Why are stop valves used in acetic acid plants as plug valves instead of ball valves? - HCBBS Forum
72. Metso systems - HCBBS Forum
73. Application of the flow current meter SCD Jepp Instrument Flumsys 10SC in coagulant dosing - HCBBS Forum
74. Talk about multiple thermocouples and thermal resistors - HCBBS Forum
75. Yamaki positioner tuning - HCBBS Forum
76. Is a pressure tap required for pressure measurement? - HCBBS Forum
77. Which type is generally chosen for on-site gauges used to measure minor pressures? - HCBBS Forum
78. Online chromatograph - HCBBS Forum
79. Causes of errors in radar level gauges and solutions - HCBBS Forum
80. Describe the picture in words - HCBBS Forum
81. Configuration Instructions for the Profibus_DP Module in the PKS System - HCBBS Forum
82. Selection of instrument air source - HCBBS Forum
83. Wiring issues for instruments in explosion-proof areas - HCBBS Forum
84. What is the concept of the permanent pressure loss of a control valve? - HCBBS Forum
85. What instrument is used to measure liquid carbon dioxide? - HCBBS Forum
86. Regarding the power supply for combustible and toxic gas detection probes - HCBBS Forum
87. What is this thing below the pressure gauge for? - HCBBS Forum
88. I’d like to ask gently about the model of the pressure gauge - HCBBS Forum
89. Which domestic manufacturer produces metal float flowmeters with good quality and high precision? - HCBBS Forum
90. Knowledge sharing on double-flange measurement - HCBBS Forum
91. High-temperature molten salt flow detection - HCBBS Forum
92. Self-acting pressure control valve - HCBBS Forum
93. Alternative to American Rosemount - HCBBS Forum
94. How should instruments be insulated and protected from freezing in winter? - HCBBS Forum
95. Can the HANRT cat be connected to debugging software from other companies? - HCBBS Forum
96. What is the purpose of the indicator lights on the Yokogawa DI terminal block? - HCBBS Forum
97. New employee here seeking help regarding flow meters. I just started working, and the experienced employee who used to guide me has left; now there’s no one to assist me - HCBBS Forum
98. When there is a coil heater inside the storage tank, where is the appropriate location to install the radar? - HCBBS Forum
99. Seek a high-temperature and high-pressure control valve - HCBBS Forum
100. Analysis of the application of contactless radar level gauges in oil tanks - HCBBS Forum