English — Forum #350 (Page 40/163)

1. Recommendations for oxygen analyzers - HCBBS Forum
2. The purpose of adding weighing and level measurement to the high-level tank - HCBBS Forum
3. Plan view of cable tray layout in the control room - HCBBS Forum
4. Zero drift issue in differential pressure flow meters - HCBBS Forum
5. How to design a simple interlock for the Zhejiang University Zhongkong JX300X as shown in the figure below? - HCBBS Forum
6. Regarding the explosion protection of Rosemount transmitters - HCBBS Forum
7. Features and installation of external level gauges - HCBBS Forum
8. The vibration of the centrifugal compressor suddenly rose to the trip level; experts, please help analyze the cause - HCBBS Forum
9. (Seeking help) I’m asking experts: can two single-loop controls be used as a substitute for proportional control? - HCBBS Forum
10. Help: Thermocouple measurement has nothing to do with the dial gauge - HCBBS Forum
11. Aoniuba Flow Meter Discussion Thread - HCBBS Forum
12. Can an elliptical gear flow meter measure water? - HCBBS Forum
13. What is the installation height for hydrogen fluoride gas detectors in general? - HCBBS Forum
14. Is it compliant to install the air filter of a pneumatic valve horizontally? - HCBBS Forum
15. Vortex flow meter, split-type - HCBBS Forum
16. Flow meter selection - HCBBS Forum
17. Instrument interlock - HCBBS Forum
18. In a causal logic diagram, should the internal sequences within a single machine be represented? - HCBBS Forum
19. E+H tuning fork densitometer and density calculator FML621 - HCBBS Forum
20. The output of the pressure transmitter cannot be zeroed - HCBBS Forum
21. Control valve accuracy - HCBBS Forum
22. What are the main classifications of common valve positioners? - HCBBS Forum
23. Safety lifecycle of safety instrumented systems - HCBBS Forum
24. General principles and methodological principles for PID tuning - HCBBS Forum
25. Safety accessories on pressure vessels - HCBBS Forum
26. GDS system - HCBBS Forum
27. Analysis of the principle and installation key points of DHE-RD guided-wave radar level gauge - HCBBS Forum
28. Distributed IO compliance - HCBBS Forum
29. Do combustible and toxic gas detectors require isolation barriers? - HCBBS Forum
30. A Brief Discussion on the Automated Design of Tank Areas and Instrument Selection - HCBBS Forum
31. Dew point meters are widely used; what are their different types? - HCBBS Forum
32. Air separation plant shutdown plan - HCBBS Forum
33. Seeking experts’ help regarding Yokogawa zirconia issues - HCBBS Forum
34. Questions about control valves - HCBBS Forum
35. Is temperature or pressure compensation required when using an orifice plate with a differential pressure transmitter to measure steam flow? - HCBBS Forum
36. Standard Specifications for Industrial Control Design in the Field of Automatic Control (Carefully compiled by Shutong to offer the most comprehensive and up-to-date collection available) - HCBBS Forum
37. Ten methods for checking instrument faults - HCBBS Forum
38. For the DCS of the Zhongkong JX300, can configuration be done in single-machine mode? And can it be deployed in single-machine mode after successful compilation? - HCBBS Forum
39. Can a DN25 pressure gauge be installed on a DN25 pipe? - HCBBS Forum
40. The situation of motor shutdown in sis - HCBBS Forum
41. The SIS stops the pump; the relay remains powered, using its normally closed contacts, and power is cut off during pulses - HCBBS Forum
42. Can the fermentation broth be measured using an electromagnetic flowmeter? - HCBBS Forum
43. How are instrument function symbols represented in a PID diagram? - HCBBS Forum
44. Certification of explosion-proof electrical equipment - HCBBS Forum
45. Issues regarding the classification of explosion-proof zones around flanges and valves in hydrogen pipelines - HCBBS Forum
46. What kind of flow meter is this? - HCBBS Forum
47. Pipelines are prone to carbon buildup and slag formation, which can cause pressure gauge failures - HCBBS Forum
48. RJ2S-CL-D24 cannot be used at 220V - HCBBS Forum
49. How to install a mass flow meter and what aspects should be considered during installation? - HCBBS Forum
50. Who can recommend some OTS manufacturers to me? - HCBBS Forum
51. Use of Samson solenoid valves - HCBBS Forum
52. Please help me check the parameters of the thermometer sleeve - HCBBS Forum
53. Distributed control system - HCBBS Forum
54. Does anyone know if self-acting control valves come in FO and FC versions? - HCBBS Forum
55. Electrical and instrumentation completion acceptance assessment - HCBBS Forum
56. The advantages and disadvantages of the current mainstream control systems, as well as those of the LSIT and Zhejiang Zhongkong systems; what are the strengths of each when compared to the others? - HCBBS Forum
57. Problems with magnetic flap level gauges - HCBBS Forum
58. Thinning problem of control valves - HCBBS Forum
59. What is the difference between the grounding terminal inside the pressure transmitter junction box and the grounding terminal on the enclosure? - HCBBS Forum
60. With the Co-60 radiation source level gauge, the level drops by more than 10 units during heavy rain. Is this because rainy weather affects the distribution of radioactive elements? - HCBBS Forum
61. Which teacher has the latest selection samples for ASCO solenoid valves? - HCBBS Forum
62. Analysis of the application of radar level gauges in chemical plants - HCBBS Forum
63. Questions about thermometer sleeves - HCBBS Forum
64. Let’s see if my understanding is correct; I’m not entirely sure about what the ISL symbol means - HCBBS Forum
65. Let’s discuss the issue of selecting the pressure difference for control valves - HCBBS Forum
66. IDS-6 series intelligent viscosity meters - HCBBS Forum
67. DCS System Technical Evaluation Form - HCBBS Forum
68. Selection of chemical process instruments - HCBBS Forum
69. Problems with double-flange level gauges; seeking expert assistance - HCBBS Forum
70. Microwave level switch - HCBBS Forum
71. Problem with damaged pressure gauge dials - HCBBS Forum
72. Should hydrogen combustible gas detection points be arranged in a grid pattern on the floor plan? - HCBBS Forum
73. The entry of Zhejiang University Zhongkong - HCBBS Forum
74. What is the difference between Honeywell Series C and Series C Mark II? - HCBBS Forum
75. Questions regarding grounding on the pipe rack - HCBBS Forum
76. Abnormalities in the measurement of steam by vortex flowmeters and their analysis - HCBBS Forum
77. Definition of diaphragm pressure transducer - HCBBS Forum
78. Regarding the selection of radar level gauges - HCBBS Forum
79. Temperature transmitter sleeve and insertion depth - HCBBS Forum
80. Is it also necessary to have steel plates embedded in the structure for wall-mounted small-sized instrument cable trays? - HCBBS Forum
81. Ball valve seasonal leakage problem - HCBBS Forum
82. Solenoid valve recommendations - HCBBS Forum
83. Today, the interviewer asked a question that left me a bit confused - HCBBS Forum
84. Cable laying distance - HCBBS Forum
85. Seeking help with Hollyland DCS - HCBBS Forum
86. Where in the IEC standards is it specified that adjustment and shutdown cannot be shared? - HCBBS Forum
87. I would like to ask the experts from various design institutes - HCBBS Forum
88. Precautions for installation of radar level meter - HCBBS Forum
89. Disadvantages of the PID control algorithm - HCBBS Forum
90. Power supply for combustible and toxic gas detection probes - HCBBS Forum
91. Quotas for chemical process instrumentation cables - HCBBS Forum
92. Dinghua Electronic external liquid level meter probe installation conditions and installation location analysis - HCBBS Forum
93. Blockage of the pressure lead pipe caused failure of both the on-site and remote level gauges - HCBBS Forum
94. Looking for brands of portable ultrasonic flowmeters and magnetostrictive level gauges - HCBBS Forum
95. Seeking help regarding issues with the instrument’s electrical interface - HCBBS Forum
96. Problem with the DIP switch S3 of the P+F safety barrier KCD2-SR-Ex1.LB - HCBBS Forum
97. Siemens positioner - HCBBS Forum
98. Grounding – Interpret the diagram! - HCBBS Forum
99. Why did it go from three years in junior high to six years in elementary school? - HCBBS Forum
100. What type of packing is used for pneumatic on-off ball valves in heat transfer oil pipelines operating at 200-300 degrees? - HCBBS Forum