English — Forum #350 (Page 120/163)

1. If the positive and negative chambers of a Rosemount differential pressure transmitter are open to the atmosphere, what should the indicated differential pressure be? - HCBBS Forum
2. Safety Instrumented System (SIS) - HCBBS Forum
3. Operation of Chemical Process Automation Control Instruments - HCBBS Forum
4. Question: Does anyone know about the PW031 for the central control unit, or can someone provide information on it? - HCBBS Forum
5. Seeking help with issues regarding combustible gas detectors - HCBBS Forum
6. Sammson control valve - HCBBS Forum
7. Seeking help with pump and pneumatic control valve setup issues - HCBBS Forum
8. The electromagnetic flowmeter shows 0 - HCBBS Forum
9. Problems with the eja differential pressure transmitter - HCBBS Forum
10. Why can’t the zero point of an immersion-type level transmitter be adjusted lower? - HCBBS Forum
11. Measurement with solid particles - HCBBS Forum
12. Seeking advice on flow meter issues; thank you very much - HCBBS Forum
13. I need to check a parameter that was set back in 2016; I found the backup file, but I don’t know how to open it - HCBBS Forum
14. Seeking expert advice on graphic programming for central control configuration - HCBBS Forum
15. Which domestic valve brand is the best? - HCBBS Forum
16. GE PLC 9070: There are constant problems with redundant switching - HCBBS Forum
17. The output of the Siemens radar level gauge does not match the display. - HCBBS Forum
18. CS3000 system issues - HCBBS Forum
19. Issues with measuring gravitational pressure drop using differential pressure gauges - HCBBS Forum
20. System inspection - HCBBS Forum
21. fisher 3610J and 3620J - HCBBS Forum
22. Can flow meters of different types in the two groups be used to achieve ratio control? - HCBBS Forum
23. Explain why two valves are used - HCBBS Forum
24. What type of records are kept by the instrumentation and control team? - HCBBS Forum
25. How does a differential pressure orifice flow meter measure flow? - HCBBS Forum
26. Inspection standards for cables - HCBBS Forum
27. How to add a DCS control to a cylinder valve of the type controlled by two solenoids? - HCBBS Forum
28. Advantages of vortex flowmeters as gas flow measurement devices - HCBBS Forum
29. Solve - HCBBS Forum
30. DeltaV 10.3.1 installation issues - HCBBS Forum
31. Are there any good examples of instrument-based driving approaches that I can refer to? - HCBBS Forum
32. 【Control Version】One Question per Day 20180407 - HCBBS Forum
33. What changes were made to 3503-2017 compared to 3503-2007? - HCBBS Forum
34. How does the Yokogawa 3000 system’s 121 card communicate with the Conixion SIS? We are using a two-wire connection; what settings need to be made on the 121 card side of the Yokogawa 3000 system? Urgent! - HCBBS Forum
35. What are the functions of an online gas chromatograph? - HCBBS Forum
36. Discussion on the spontaneous opening phenomenon of the small flare valve at the inlet of the catalytic air compressor - HCBBS Forum
37. 【Control Version】One Question per Day 20180428 - HCBBS Forum
38. Instrument cable 3×1.5 Resistance value - HCBBS Forum
39. Boiler oxygen meter - HCBBS Forum
40. 【Control Version】One Question per Day 20180403 - HCBBS Forum
41. Which manufacturers of toxic gas detectors have 3C certification? - HCBBS Forum
42. A problem with Zhejiang University Zhongkong - HCBBS Forum
43. This is the radar level gauge from that domestic brand - HCBBS Forum
44. Seek advice on the selection of a differential pressure level gauge for on-site use - HCBBS Forum
45. Look at the picture - HCBBS Forum
46. Introduction to DeltaV PID Tuning Software - HCBBS Forum
47. What are the reasons for unstable operation of electromagnetic flowmeters? - HCBBS Forum
48. What is the difference between closing permitted by the process and tripping due to process interlocks? - HCBBS Forum
49. What is the difference between zero adjustment for ordinary differential pressure flowmeters and negative drift for double-flange level gauges? Why doesn’t direct zeroing with double flanges work? - HCBBS Forum
50. The entire plant was shut down due to a leak in the pressure tap pipes; how should an integrated orifice plate flow meter be arranged to fix these pressure tap pipes? - HCBBS Forum
51. Seeking help with CS3000 historical trends - HCBBS Forum
52. Is it necessary to specify the protection rating for explosion-proof instruments? - HCBBS Forum
53. Seeking help regarding the meaning of PLC ladder diagrams - HCBBS Forum
54. How does ADAM-4017+ communicate? - HCBBS Forum
55. Flammable toxic gas alarm - HCBBS Forum
56. The flow characteristics are described in detail, and the method for selecting control valves along with the issues that need attention are provided - HCBBS Forum
57. The installation method of PH and ensures ease of inspection and maintenance - HCBBS Forum
58. 【Control Version】One Question per Day 20180507 - HCBBS Forum
59. Regarding the resistance value of the thermal resistor and the display issue in the DCS - HCBBS Forum
60. Who has any information on pressure thermometers? Please share it - HCBBS Forum
61. What type of valve does the HV24003 valve in the diagram represent? - HCBBS Forum
62. There are 7 methods for maintaining pneumatic butterfly valves - HCBBS Forum
63. Beginner - HCBBS Forum
64. Seek calculation software for throttle devices and flow restrictor orifices - HCBBS Forum
65. Vortex flowmeters exhibit large fluctuations - HCBBS Forum
66. Instrument code issue - HCBBS Forum
67. For AB’s PLC, how to write programs to a memory card - HCBBS Forum
68. S7-300 diagnosis contents - HCBBS Forum
69. How is the interlock for the positive pressure chamber implemented? - HCBBS Forum
70. What causes fluctuations in the temperature gauge of the reactor? - HCBBS Forum
71. I am looking for information regarding the configuration of the Central Control ECS700 - HCBBS Forum
72. How to solve the metering problems of natural gas orifice plate flowmeters - HCBBS Forum
73. Regarding RS232 wiring - HCBBS Forum
74. How to get started in self-learning the repair of automated valves and instruments in factories - HCBBS Forum
75. When does this logic output 0? - HCBBS Forum
76. Main problems of vortex flowmeters and their solutions - HCBBS Forum
77. When testing high-pressure pipelines, can instruments and valves be tested together? - HCBBS Forum
78. In which industries are mass flow meters used? - HCBBS Forum
79. Automatic analyzer - HCBBS Forum
80. 【Control Version】One Question per Day 20180526 - HCBBS Forum
81. Remote pressure transmitters, pressure lead pipes, and root valves often get clogged - HCBBS Forum
82. Solving Problems with Yokogawa Mass Flow Meters - HCBBS Forum
83. A Brief Analysis of SOE Configuration Strategies in SIS Systems - HCBBS Forum
84. Explosion protection issues for control boxes - HCBBS Forum
85. Great master, please help revise which parts of the paper - HCBBS Forum
86. Problems with the installation of negative pressure transmitters - HCBBS Forum
87. After the electric valve is opened to its full position and closed to its full position - HCBBS Forum
88. The company needs to purchase a batch of pneumatic valves, and due to budget constraints, domestic brands have to be chosen. Does anyone have any recommendations for reliable brands that have been used before? Thank you! ! ! - HCBBS Forum
89. Where is the KB software in Honeywell PKS410 software? - HCBBS Forum
90. Contactless handheld flow meter - HCBBS Forum
91. 【Control Version】One Question per Day 20180531 - HCBBS Forum
92. 【Control Version】One Question per Day 20180522 - HCBBS Forum
93. The issue of cold junction compensation in thermocouple temperature measurement - HCBBS Forum
94. Tuning fork level switch - HCBBS Forum
95. No matter how it’s cleaned, it still can’t be used…… - HCBBS Forum
96. Pressure transmitters are mainly used in the following fields - HCBBS Forum
97. About SIS system manufacturers - HCBBS Forum
98. Technical parameters and usage instructions of the Thermal Engineering Handbook - HCBBS Forum
99. Issues regarding SOE and coercion in the ICS Trusted system - HCBBS Forum
100. Installation location and selection of level gauges for negative pressure systems - HCBBS Forum