English — Forum #350 (Page 127/163)

1. NE 24VDC - HCBBS Forum
2. The pneumatic valve actuator is malfunctioning; it is necessary to ensure that the valve remains at a certain opening degree. How to handle this? - HCBBS Forum
3. Giggle giggle, this differential pressure transmitter has a rather strange appearance. Is it disabled or an alien? - HCBBS Forum
4. Cabling method from the on-site cabinet room to the control room - HCBBS Forum
5. Selection of Pressure (Differential Pressure) Transmitters for Instruments - HCBBS Forum
6. How to measure the level of materials in a fluidized state - HCBBS Forum
7. Seeking advice from experts: Where to place the denitration UPS? - HCBBS Forum
8. CS3000 alarm issue! - HCBBS Forum
9. Question about surge protectors - HCBBS Forum
10. Regarding the flexible cable, a wire nose should be used - HCBBS Forum
11. Flow meter installation - HCBBS Forum
12. 【Control Version】One Question per Day 20180501 - HCBBS Forum
13. 【Control Version】One Question per Day 20180517 - HCBBS Forum
14. Topworx travel switch TVL-M20GNPM - HCBBS Forum
15. How to install the ITCC engineer station in a VM - HCBBS Forum
16. I would like to ask everyone: must galvanized water gas pipes be used for the conduit for instrument control cables in explosion-proof areas? - HCBBS Forum
17. Discussion on the problem of induced electricity - HCBBS Forum
18. I would like to ask everyone about using differential pressure transmitters to measure flow rate - HCBBS Forum
19. Instrument-related issues in the feasibility study report - HCBBS Forum
20. Bentley Prefixer - HCBBS Forum
21. What type of limit switch is suitable for hygroscopic and sticky powders? - HCBBS Forum
22. Looking for recommendations on the specifications and dimensions of instrument protection boxes - HCBBS Forum
23. What causes fluctuations in the control valve positioner? What’s the solution? - HCBBS Forum
24. Which standards and specifications require pressure gauges to indicate the upper and lower limit ranges? - HCBBS Forum
25. Due to a manufacturing error, there is a fixed resistance value in the resistor’s thermocouple wire; how can this fixed resistance value be eliminated? - HCBBS Forum
26. What is a primary meter and what is a secondary meter? - HCBBS Forum
27. Internal leakage in the shut-off valve - HCBBS Forum
28. How to calibrate a vortex flow meter - HCBBS Forum
29. What is the difference between INTOUCH and Triview, and why is there such a big price difference? - HCBBS Forum
30. Generally, what protocol and communication method is used for communication between the MCC backend and the DCS? - HCBBS Forum
31. What material should be used for a mass flow meter for chlorine? - HCBBS Forum
32. Thermometers installed at pipe elbows and the issue of diameter expansion - HCBBS Forum
33. Can intrinsically safe instruments be used independently in hazardous areas? - HCBBS Forum
34. Please recommend a frequency digital display with good quality - HCBBS Forum
35. Seeking expert advice on double-flange differential pressure density meters - HCBBS Forum
36. . The signal indicating that the electric valve involved in the interlock has been closed appears, but in reality it hasn’t been closed; this triggers the interlock. What could be the reason? - HCBBS Forum
37. Questions regarding the standards for explosion-proof plugs of pressure gauges - HCBBS Forum
38. Analysis of the reasons for the operation of the pressure controller and the activation of the safety valve - HCBBS Forum
39. What’s the difference! - HCBBS Forum
40. I’d like to ask everyone for advice on calibrating the zero point and range of differential pressure transmitters! ! - HCBBS Forum
41. Why is it best not to use bimetallic thermometers for measuring the temperature of fluids in open containers? - HCBBS Forum
42. 【Control Version】Daily Question 20180409 - HCBBS Forum
43. Interlock interface - HCBBS Forum
44. Selection of silicon powder medium valves - HCBBS Forum
45. Three reasons to choose a orifice plate flow meter - HCBBS Forum
46. Seeking help with Siemens 400PLC issues - HCBBS Forum
47. Regarding the issue of solenoid valves blowing fuses - HCBBS Forum
48. Which densimeter is suitable - HCBBS Forum
49. Requirements for valves associated with pressure gauges in pressure facilities - HCBBS Forum
50. Regarding the emergency cooling system of SIS - HCBBS Forum
51. Analyzing the structural principle of stainless steel differential pressure gauges - HCBBS Forum
52. Analysis of reasons for no flow display in turbine flowmeters - HCBBS Forum
53. Honeywell C300 virtual machine - HCBBS Forum
54. How to understand logical SR? - HCBBS Forum
55. Central control network failure - HCBBS Forum
56. Regarding 485 wiring - HCBBS Forum
57. Selection of the outer protective tube for thermal resistors - HCBBS Forum
58. Reasons for inaccurate readings on vortex flow meters - HCBBS Forum
59. 【Control Version】One Question per Day 20180417 - HCBBS Forum
60. Who has a site management procedure for plant safety instrumented systems? - HCBBS Forum
61. Signal attenuation issue due to excessive length of control cable - HCBBS Forum
62. Flow meter? - HCBBS Forum
63. Issue with liquid level display in the tank - HCBBS Forum
64. Central control DCS JX300 configuration - HCBBS Forum
65. Single-flange transmitter with negative migration - HCBBS Forum
66. He gave a thorough explanation of the three-wire thermal resistance temperature measurement circuit; his presentation was so moving that even textbooks seemed to cry and bow in admiration. Brother Pig said this while patting his fat belly - HCBBS Forum
67. Introduction to the characteristics of steam orifice plate flow meters - HCBBS Forum
68. Discussion on the effects of proportional and integral terms in PID control - HCBBS Forum
69. DCS Honeywell - HCBBS Forum
70. Pipe-type ultrasonic flow meter - HCBBS Forum
71. 【Control Version】Daily Question 20180514 - HCBBS Forum
72. Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries - HCBBS Forum
73. Mass flow meter - HCBBS Forum
74. How to deal with freezing issues on Siemens CP341? - HCBBS Forum
75. Separation of sewage sludge - HCBBS Forum
76. Modify range - HCBBS Forum
77. What are the differences between Yamaki AVP80 and AVP300? ? ? - HCBBS Forum
78. How to detect the electrodynamic vibration probes of the turbine unit? - HCBBS Forum
79. Questions about automated design - HCBBS Forum
80. There are several forms of DCS interlock logic diagrams - HCBBS Forum
81. The zero-point shift of differential pressure transmitters is divided into no shift, negative shift, and positive shift - HCBBS Forum
82. Source of values for setting alarm thresholds - HCBBS Forum
83. How can I find the wiring terminal for a specific point in a DCS system within the cabinet? Seeking help - HCBBS Forum
84. 【Control Version】Daily Question 20180404 - HCBBS Forum
85. Gauge calibration - HCBBS Forum
86. Points to note for daily maintenance of pneumatic control valves, common faults and their solutions - HCBBS Forum
87. In 2018, the growth rate of the instrumentation industry is set to reach 9% – these demands will surge - HCBBS Forum
88. How should we understand the requirement, per the specifications, to install explosion-proof flexible pipes and explosion-proof isolation seal boxes when cables are led out from field instruments? - HCBBS Forum
89. How to deal with blocked pressure tapping pipes in instruments - HCBBS Forum
90. How to use the mixed gas mixing cabinet correctly - HCBBS Forum
91. What does full stroke test for valves mean? How was it done? - HCBBS Forum
92. Yokogawa VP system OPC communication - HCBBS Forum
93. Essentials | The implementation and verification process of the Safety Instrumented Function SIF - HCBBS Forum
94. Are there any standards for DCS control panels? - HCBBS Forum
95. Is it normal to have oil stains on the pressure switch? Why do they exist? - HCBBS Forum
96. What is the difference between a pressure switch and pressure interlock control? - HCBBS Forum
97. Please help, siblings of the instrument - HCBBS Forum
98. For E+H electromagnetic flowmeters, if the power supply board fails continuously on the same unit, what could be the possible causes? - HCBBS Forum
99. 【Control Version】One Question per Day 20180527 - HCBBS Forum
100. ABB digivis trend curve lost... - HCBBS Forum