English — Forum #350 (Page 31/163)

1. The on-site pneumatic shut-off valve closes slowly - HCBBS Forum
2. Questions regarding fail-safety - HCBBS Forum
3. Legend of installation methods for various field instruments required in work - HCBBS Forum
4. Yellow phosphorus level measurement - HCBBS Forum
5. Questions regarding the instrument specification sheet - HCBBS Forum
6. Analysis and Handling of 10 Common Faults in Classic Level Gauges - HCBBS Forum
7. Is the central control room blast-resistant? - HCBBS Forum
8. The air flow passes through 2 heaters, and its volume decreases. Let’s analyze this in detail; are there any professionals available? - HCBBS Forum
9. Design issues of combustible toxic gas detectors - HCBBS Forum
10. Which FCS is the FCU AFV10D suitable for in the CS3000? - HCBBS Forum
11. What is the measurement accuracy of the surface-mounted weighing level sensors produced by the American company KM? Are they stable and reliable? - HCBBS Forum
12. How can the temperature of the secondary combustion chamber be controlled to the extreme? - HCBBS Forum
13. Problems with HollySys DCS - HCBBS Forum
14. Causes of static pressure error in Rosemount differential pressure transmitters and correction methods - HCBBS Forum
15. Seeking advice on selecting diaphragm pressure gauges - HCBBS Forum
16. Magnetostrictive level gauge - HCBBS Forum
17. Connection of stainless steel valves to carbon steel pressure tapping pipes - HCBBS Forum
18. MFT - HCBBS Forum
19. Over 70 books on learning Siemens PLCs - HCBBS Forum
20. Is the operating pressure at ATM gauge pressure? - HCBBS Forum
21. What kind of valve is this? - HCBBS Forum
22. Comparison of the evaluation between HollySys and Zhejiang University SUPCON DCS systems - HCBBS Forum
23. If one of the measurement tubes in a mass flow meter becomes blocked, does the indicated value change? - HCBBS Forum
24. Requirements for the number of conductors in the instrument power cable - HCBBS Forum
25. Conductivity meter for measuring sulfuric acid concentration - HCBBS Forum
26. How to allocate Yokogawa VP licenses - HCBBS Forum
27. There are multiple identical devices in the workshop; can the instrument numbers be the same? - HCBBS Forum
28. How long should the straight sections before and after the flow meter be? - HCBBS Forum
29. 【Emerson DeltaV Video Tutorials】Emerson DeltaV Video Tutorials - HCBBS Forum
30. Regarding double-flange differential pressure transmitters - HCBBS Forum
31. Chemical Instrument Maintenance Skills Certificate - HCBBS Forum
32. PID tuning - HCBBS Forum
33. What type of level gauge is best for a mud pit? - HCBBS Forum
34. Remote operation settings for the engineer station - HCBBS Forum
35. Damn fluctuations - HCBBS Forum
36. Dear friends in the Sichuan community, how do you achieve automation through layered processing? - HCBBS Forum
37. I have a gentle question: does anyone know anything about instruments from the Dowston brand? - HCBBS Forum
38. For the solenoid valve in the pneumatic circuit of a control valve, should it be a direct-acting type or a pilot-operated type? - HCBBS Forum
39. What does this symbol in the PID diagram mean? - HCBBS Forum
40. What product should be used for monitoring the liquid level of ultra-cold liquid nitrogen? - HCBBS Forum
41. Fully automatic melt index apparatus - HCBBS Forum
42. Precautions during the use of radar level gauges - HCBBS Forum
43. Application of guided-wave radar level meters in drum level measurement - HCBBS Forum
44. SFC sequential control - HCBBS Forum
45. American Sage thermal gas mass flow meter product sharing - HCBBS Forum
46. Should the automatic control design in design institutes be carried out entirely in accordance with the standards? - HCBBS Forum
47. Automatic alignment system for coke oven trolleys - HCBBS Forum
48. Is a UPS used for the factory’s TV surveillance system? - HCBBS Forum
49. Medium: saline water, salt-containing crystal particles - HCBBS Forum
50. Instrument grounding issue - HCBBS Forum
51. Looking to purchase a chlorine flow meter! ! ! ! 15865400663 - HCBBS Forum
52. Performance Considerations in Selecting a Mass Flow Meter - HCBBS Forum
53. Which is more advanced, the electrochemical or photoionization type of toxic gas detectors? - HCBBS Forum
54. Learn* it a bit - HCBBS Forum
55. Professional title - HCBBS Forum
56. Hydraulic valve control schematic diagram - HCBBS Forum
57. The pressure transmitter controls two control valves; when the pressure is too high, an interlock mechanism causes one of the control valves equipped with a solenoid valve to close； Another control valve is opened to a fixed small opening degree (this control valve is the cooling air control valve) - HCBBS Forum
58. How is the protection rating of a junction box determined? - HCBBS Forum
59. Rosemount temperature transmitters for measuring thermocouples - HCBBS Forum
60. How to resolve the 1-ton discrepancy between the cumulative readings of the high-accuracy mass flow meter and those of the weighbridge? - HCBBS Forum
61. Knowledge sharing on process packages - HCBBS Forum
62. Yokogawa vortex flowmeter calculation software, green and installation-free. - HCBBS Forum
63. What does this symbol mean? - HCBBS Forum
64. Collection | Dinghua Electronics 3D flip electronic product database - HCBBS Forum
65. The problem of self-regulated fluctuations in vinyltrichlorosilane measured by a mass flow meter - HCBBS Forum
66. Gas detector range - HCBBS Forum
67. Brands of flow meters for argon gas mixtures - HCBBS Forum
68. Regarding how to interpret the independence of safety instruments as mentioned in Order No. 40, - HCBBS Forum
69. Cable laying in the fire control room on the first floor - HCBBS Forum
70. Selection of control valves - HCBBS Forum
71. Issues regarding the flange of single-flange differential pressure transmitters - HCBBS Forum
72. Continuous or discontinuous instrument cable entry - HCBBS Forum
73. Summary of Electrical Instrument Standards [Standards and Specifications for Instrumentation, Automation, and Control] List (no attachments) - HCBBS Forum
74. (Dry contact) When the DI channel is open, voltage is detected between the two terminals; when it is closed, no voltage is detected. What is the principle behind this? - HCBBS Forum
75. The E+H guided wave radar level gauge has a large deviation - HCBBS Forum
76. The Coriolis steam flow meter always displays zero at full scale - HCBBS Forum
77. I would like to ask about the spacing of pipe supports on the pipe gallery? - HCBBS Forum
78. Regarding the installation location of the pressure transmitter. - HCBBS Forum
79. What does logical negation mean? - HCBBS Forum
80. How to identify the authenticity of Yokogawa EJA transmitters - HCBBS Forum
81. The existing unused tubular surge protectors need to be dealt with - HCBBS Forum
82. Two key aspects of DCS technical supervision - HCBBS Forum
83. How Rosemount transmitters achieve explosion protection and the principle behind it - HCBBS Forum
84. On-site water level gauge for the drum - HCBBS Forum
85. Are there any pressure requirements for the PTFE valve seat of soft-sealed ball valves? - HCBBS Forum
86. Should the SIS interlock be activated in case of a loss of instrument signal? - HCBBS Forum
87. How to measure the pH of an enamel kettle - HCBBS Forum
88. Application Analysis of Several Level Gauges for Liquid Ammonia Storage Tanks - HCBBS Forum
89. 【Useful Tips】How to calibrate the Fisher locator DVC6000 using a handheld controller? - HCBBS Forum
90. Is an intermediate professional title in instrumentation still useful these days? - HCBBS Forum
91. Regarding thread specifications - HCBBS Forum
92. How to use the five-valve assembly? Take a look and you’ll understand - HCBBS Forum
93. User Manual for Electronic Electric Actuator 381lsb-30 - HCBBS Forum
94. Common faults of mass flow meters and their analysis - HCBBS Forum
95. Oxygen level and combustible gas alarms - HCBBS Forum
96. Level switches come in built-in and external types; how are they distinguished? - HCBBS Forum
97. Regarding DCS communication - HCBBS Forum
98. What does “trim list” mean? - HCBBS Forum
99. Are there any design changes to the on-site pressure gauges for measuring water when the ambient temperature is below zero degrees? - HCBBS Forum
100. Temperature control issue in the droplet addition pipeline - HCBBS Forum