English — Forum #350 (Page 30/163)

1. Regarding instrument communication issues - HCBBS Forum
2. Selection of level gauge for triple-effect ammonium chloride solution - HCBBS Forum
3. Regarding instrument safety certification issues - HCBBS Forum
4. Questions regarding liquid level calculation - HCBBS Forum
5. Seek the complete version of the instruction manual for Chuanyi electromagnetic flowmeters - HCBBS Forum
6. Excuse me, is the thermometer installed on the jacket as shown in the diagram? - HCBBS Forum
7. Seeking help; by the way, let’s discuss the material selection for valve spools and valve seats - HCBBS Forum
8. PEEK, who can talk about its disadvantages? - HCBBS Forum
9. Those who have used the Nanjing Keyuan NT6000 system, please share the advantages and disadvantages of this product - HCBBS Forum
10. How can it be determined in advance during SIL classification whether the SIF can be achieved? Share practical and simplified SIL preliminary calculation methods - HCBBS Forum
11. Analysis of the application of radar level gauges in gas holders - HCBBS Forum
12. Summing Allen-Bradley DCS configuration software installation package - HCBBS Forum
13. How should this type of flow meter from Emerson be handled? - HCBBS Forum
14. DCS - HCBBS Forum
15. Signal line - HCBBS Forum
16. DCS interlock - HCBBS Forum
17. Maximum process pressure of vortex flow meter - HCBBS Forum
18. I have questions regarding control and connectivity; could some expert please explain? - HCBBS Forum
19. Strange. The Honeywell ST700 differential pressure transmitter does not show a corresponding relationship between current and differential pressure once it is connected to a three-valve manifold with an orifice plate - HCBBS Forum
20. I’d like to ask the experts about the meaning of the letters in a PID diagram. - HCBBS Forum
21. Highwell® Model 1700 Transmitter - HCBBS Forum
22. Issues related to flammable and toxic gas detectors - HCBBS Forum
23. Does steam react with ethylene glycol? Reasons for coking in steam measurements - HCBBS Forum
24. Requirements for equipotential bonding at flange connections of metal pipes in different standards - HCBBS Forum
25. What is the red element on top of the pneumatic control valve for? - HCBBS Forum
26. I would like to ask what the hole in this control valve is for? - HCBBS Forum
27. Unable to connect after adding a DTM file in Pactware - HCBBS Forum
28. Solution Dispenser — Hangzhou Zhenyue Technology - HCBBS Forum
29. Central control DCS card - HCBBS Forum
30. Can G threads be used in conjunction with Class II pipes? - HCBBS Forum
31. Issues regarding the installation height of differential pressure level gauge transmitters: national standards + American standards - HCBBS Forum
32. Selection issues for micro-pressure gauges - HCBBS Forum
33. Knowledge sharing on stop valves - HCBBS Forum
34. How to configure the Rosemount 644 temperature transmitter using a 475 handheld programmer - HCBBS Forum
35. Application of Samson 3730 series locators in AMS - HCBBS Forum
36. Control cable or computer cable, hard wire or flexible wire, 1.0 or 1.5 - HCBBS Forum
37. I would like to ask whether it is compliant to use yellow-green wire for connecting the grounding of the cable shielding layer in a DCS system - HCBBS Forum
38. Pneumatic circuit diagram - HCBBS Forum
39. Specifications for conical drilling sleeves for thermal resistor flange installation - HCBBS Forum
40. Water reducer unit mass flow meter - HCBBS Forum
41. For the control valve of an FC, if the air supply is cut off and then restored suddenly, could this cause the opening degree to become suddenly higher than the normal value? - HCBBS Forum
42. How many square meters of cable are used for the on-site solenoid valve? - HCBBS Forum
43. What should be used as the heat transfer medium for the thermometer sleeve? - HCBBS Forum
44. VFExplorer cannot be opened properly - HCBBS Forum
45. Find the meaning of PID diagram symbols - HCBBS Forum
46. On DCS and PLC system design - HCBBS Forum
47. What is the throttling expansion coefficient (Joule-Thomson coefficient) of hydrogen? - HCBBS Forum
48. Double-flange compression problem - HCBBS Forum
49. Are thermoresistors affected by viscosity, crystallization, and solidification? - HCBBS Forum
50. What type of flow meter is suitable for measuring boiler air volume? - HCBBS Forum
51. After the plant power supply is restored, the motor current in the DCS system is low - HCBBS Forum
52. It’s first snowing. The Dinghua people look like they’ve turned gray. It’s so cool! - HCBBS Forum
53. Looking for materials for the 2021 Forum on Automation and Safety Emergency Management in Fine Chemicals - HCBBS Forum
54. Silo level measurement - HCBBS Forum
55. Several questions regarding the power cables for control cabinets and instruments - HCBBS Forum
56. PID parameters in DCS control systems - HCBBS Forum
57. Sensor Information Collection 21.1 [Sensor] List No Attachments - HCBBS Forum
58. Online detection of caustic soda concentration - HCBBS Forum
59. Seeking advice on selecting the range for local pressure gauges - HCBBS Forum
60. Question: For the DI and DO signal cables in the PLC cabinet, is it necessary to ground the cable shielding layer? - HCBBS Forum
61. How to read the SIS\DCS cause-and-effect table? What do S and X represent in it? - HCBBS Forum
62. Motors with what power rating or higher require the installation of temperature-sensing platinum resistors? - HCBBS Forum
63. Urgently seeking partners for pneumatic diaphragm valve manufacturers - HCBBS Forum
64. What type of flow meter is suitable for measuring wastewater _ Electromagnetic flow meter for wastewater - HCBBS Forum
65. Can two single-loop controls be used to replace split-range control? - HCBBS Forum
66. Example diagram of pneumatic or electric emergency shut-off valve - HCBBS Forum
67. Hydrogen-related definition criteria: Does using FID hydrogen as an oxidizer count as a hydrogen-related process? - HCBBS Forum
68. DCS and SIS share one isolation valve; how is it usually wired? - HCBBS Forum
69. How to measure the flow rate of gas and coal gas with large pipe diameters - HCBBS Forum
70. In instrument design, what is the difference between two-of-three selection and median selection, and where are they used respectively? - HCBBS Forum
71. When developing the transmitter circuit for a magnetic flip-level gauge, should a Hall element or a reed switch be used? - HCBBS Forum
72. Help with resistance reading - HCBBS Forum
73. Control valve - HCBBS Forum
74. Why can’t I view certain sections? - HCBBS Forum
75. Steel balls in the instrument air pressure regulator - HCBBS Forum
76. What type of on/off valve is suitable for media that tend to self-agglomerate? - HCBBS Forum
77. How does a single-acting shut-off valve achieve fail-safe operation? - HCBBS Forum
78. Can a positively ventilated explosion-proof cabinet determine the explosion-proof rating of the control cabinet? - HCBBS Forum
79. What factors should be considered when selecting electric valve actuators? - HCBBS Forum
80. Issues with the installation of instrument cables - HCBBS Forum
81. WIKA diaphragm pressure gauge - HCBBS Forum
82. Experience sharing on on-site instrument failures - HCBBS Forum
83. Fault issues of abnormal output signals from Rosemount transmitters and solutions - HCBBS Forum
84. Oxygen analyzer consultation - HCBBS Forum
85. Are you familiar with these gauge legend symbols? - HCBBS Forum
86. I need help – what is the name of the pneumatic mechanism used for quick installation and removal of flow meters? As shown in the figure, behind the flow meter. - HCBBS Forum
87. How to effectively manage preventive maintenance of instruments - HCBBS Forum
88. Is it correct to draw the interlock logic diagram this way? - HCBBS Forum
89. Selection between Hollyland’s MACS-K system and Zhejiang Zhongkong’s ECS-700 system - HCBBS Forum
90. Discussion on reactor surface temperature measurement - HCBBS Forum
91. Zhejiang Zhongkong DCS JX300 network settings - HCBBS Forum
92. Who understands the ABB chromatography PgGC5000? - HCBBS Forum
93. How to store interlock logs and interlock debugging records - HCBBS Forum
94. Problems with double-flange level transmitters - HCBBS Forum
95. A brief discussion on the principles, installation, and maintenance of radar level gauges - HCBBS Forum
96. Comparison of the Performance and Applications of Laminar Flow Principle and Thermal Principle Gas Mass Flow Meters/Controllers (III) - HCBBS Forum
97. Regarding the selection of range for pressure measuring instruments - HCBBS Forum
98. Do instrument technicians need to obtain any certificates? - HCBBS Forum
99. Hydrogen peroxide: gas probe setup? - HCBBS Forum
100. Are there any manufacturers that produce PH stents that can be inserted and removed online? - HCBBS Forum