English — Forum #350 (Page 151/163)

1. CEMS Flue Gas System Maintenance Protocol - HCBBS Forum
2. Interlock control for hazardous processes, - HCBBS Forum
3. (Information Sharing) Design Guide for Elbow-Connected Pressure Tap Orifice Flow Meters - HCBBS Forum
4. PID control principle and methods for chemical process control valves - HCBBS Forum
5. Is there a significant difference in quality between the XP300 and 700 models from Zhongkong? - HCBBS Forum
6. To do instrument design, to what extent is one needed to be familiar with the manufacturing processes? - HCBBS Forum
7. Specifications for dual-color water level gauges and electrical contact switches - HCBBS Forum
8. MODBUS communication issues between ITCC and DCS - HCBBS Forum
9. Honey PKS Alarm Event Fields - HCBBS Forum
10. I’m asking for help from all my friends - HCBBS Forum
11. I have one workshop here, with a total of around 4,000 units, of which 1,300 are AI, 130 are AO, 1,600 are DI, and so on. - HCBBS Forum
12. Notice on Policies Concerning the Rationalization and Standardization of a Range of Administrative and Institutional Fees (Metering Fees) - HCBBS Forum
13. Can an electric control valve be installed on a gravity-fed pipeline? - HCBBS Forum
14. Questions about electromagnetic flowmeters - HCBBS Forum
15. Discussion on the selection of feed water valves for steam drums - HCBBS Forum
16. Alternative imported brands to NaiGe ultrasonic flow switches - HCBBS Forum
17. Is there a page charge for publishing papers in journals on chemical process automation and instrumentation? - HCBBS Forum
18. 2015 Top 50 Sales Ranking of Control Valve Manufacturers in China - HCBBS Forum
19. Problems with PSA programmable valve manufacturers - HCBBS Forum
20. Manufacturers of dust detectors? - HCBBS Forum
21. Issues related to PID tuning of the Hilscher MACSV system - HCBBS Forum
22. HG∕T 20699-2014 Common Terms in Automatic Control Design - HCBBS Forum
23. What valve does the instrument tag MOV represent? - HCBBS Forum
24. Schematic diagram of the principle of intelligent locator - HCBBS Forum
25. What is the principle of a speed control switch? How do I adjust the motor speed? - HCBBS Forum
26. Automatic calibration of the instrument - HCBBS Forum
27. Why are TUBE reactors used for high-pressure hydrogenation? - HCBBS Forum
28. Why are imported instrument piping fittings several times more expensive than domestic ones? - HCBBS Forum
29. Reciprocating compressor-----Installation of downward displacement probe - HCBBS Forum
30. Introduction to the CS3000 function block - HCBBS Forum
31. Issues with connecting the Siemens S7-300 to a computer - HCBBS Forum
32. Issue with automatic temperature control in the reaction kettle; seeking help from everyone - HCBBS Forum
33. Why are normally open, normally closed switches related to high-level and low-level alarms? - HCBBS Forum
34. How should one choose between flow-on and flow-off operation for valves? - HCBBS Forum
35. The Honeywell console station is entering an intermittent bypass mode; seeking expert assistance - HCBBS Forum
36. Powder flow meter - HCBBS Forum
37. What type of level gauge is suitable for measuring the level in underground liquefied natural gas storage tanks? - HCBBS Forum
38. Yokogawa DCS Training Tutorial - HCBBS Forum
39. Seeking advice on issues related to the control of electric cut-off ball valves - HCBBS Forum
40. Export Yokogawa system long-term trend files to EXCEL - HCBBS Forum
41. Can a vortex flow meter measure temperatures above 400 degrees? - HCBBS Forum
42. Do online detectors on gas pipelines need to be explosion-proof? - HCBBS Forum
43. Maximum operating pressure of the pressure transmitter - HCBBS Forum
44. Gurus! Seek acceptance criteria for control cables - HCBBS Forum
45. Seeking help with Yokogawa CENTUM VP issues - HCBBS Forum
46. This sensor weighs 80 grams and costs 28,300. Can you guess what parameter it measures? - HCBBS Forum
47. Signal two bus - HCBBS Forum
48. The natural gas industry, primarily focused on urban pipeline gas supply - HCBBS Forum
49. Looking for a professional team to service and adjust control valves? - HCBBS Forum
50. Regarding venturi tubes with differential pressure transmitters - HCBBS Forum
51. Uniform regulations for instrument design - HCBBS Forum
52. Representation of instrument air supply distributors on the instrument layout diagram - HCBBS Forum
53. How to select a valve actuator - HCBBS Forum
54. Daily inspection and maintenance of flammable and toxic gas detectors. - HCBBS Forum
55. Another perspective on PID in control systems - HCBBS Forum
56. Regarding superheated steam and saturated steam - HCBBS Forum
57. For water treatment processes such as ultrafiltration UF and reverse osmosis RO, which are similar to sequential control devices, what is the power supply type for the pneumatic butterfly valves and solenoid valves used on site? - HCBBS Forum
58. Understanding PID - HCBBS Forum
59. The tank level is below 20% - HCBBS Forum
60. Discussion on process control - HCBBS Forum
61. I have a question about pressure transmitters for everyone - HCBBS Forum
62. Seeking help regarding the use of ultraviolet instruments - HCBBS Forum
63. Issues regarding the weighing of calcium carbide in the acetylene generation process - HCBBS Forum
64. How to set up the flowchart for button binding in the Yokogawa CS3000? - HCBBS Forum
65. Online analyzer - HCBBS Forum
66. Could you please help explain the meaning of each symbol on this gauge in the diagram? - HCBBS Forum
67. Issues with the actuator support of the control valve - HCBBS Forum
68. Questions about wiring - HCBBS Forum
69. Seeking help with OPC communication for Yokogawa CENTUM VP system - HCBBS Forum
70. Advantages of Aoniuba flow meters - HCBBS Forum
71. PMV D20 locator - HCBBS Forum
72. Can the 8200D vortex flow meter reset its sensor? - HCBBS Forum
73. (Information Sharing) S7-200_300_400 PLC Application Technology – General Overview - HCBBS Forum
74. Control valve - HCBBS Forum
75. Is a pressure gauge for leak detection necessary for a bellows-sealed control valve? - HCBBS Forum
76. Request internal structure diagrams for three-valve assemblies and five-valve assemblies - HCBBS Forum
77. What are the considerations regarding the diameter and flow range of vortex flowmeters, their measurement accuracy, as well as the choices for installation? - HCBBS Forum
78. I would like to ask how to read the legends for foreign solenoid valves - HCBBS Forum
79. Step control technology - HCBBS Forum
80. Comparison of electromagnetic interference mitigation schemes in signal transmission - HCBBS Forum
81. HGT 20512-2014 Code for Design of Instrument Piping and Wiring - HCBBS Forum
82. How to install a pipeline pressure gauge for DN25 - HCBBS Forum
83. Direct and reverse action of control valves - HCBBS Forum
84. What type of flow meters are generally used for flow measurement in the UF ultrafiltration and RO reverse osmosis pipelines for water treatment? - HCBBS Forum
85. The internal components of steam control valves are generally clad with Stellite; is it necessary to use Stellite for cladding cut-off valves as well? - HCBBS Forum
86. Issues regarding the contacts of the Allen-Bradley FM161D module - HCBBS Forum
87. Does the Obal mass flow meter support the HART protocol? - HCBBS Forum
88. Help needed - HCBBS Forum
89. (Information Sharing) Guidelines for the Study of Principles of Automatic Control* and Detailed Explanations of Selected Problem Types - HCBBS Forum
90. Watson mass flow meter - HCBBS Forum
91. No voltage at the terminals of the Siemens PLC S7-400 F-AI card - HCBBS Forum
92. Come in and chat - HCBBS Forum
93. Some views and measures on control room management - HCBBS Forum
94. Relief valve and control valve - HCBBS Forum
95. Magnetic flap glue detector - HCBBS Forum
96. Electric three-way distribution valve used in compound fertilizer equipment - HCBBS Forum
97. What instruments can be used to measure the foam level during chemical reactions? - HCBBS Forum
98. Flow meters in Cologne - HCBBS Forum
99. Ten key points to note when maintaining instruments and meters - HCBBS Forum
100. Which brand is good for rotary vortex flowmeters? - HCBBS Forum