English — Forum #350 (Page 106/163)

1. For two-phase media, water is added and stirred through sedimentation followed by repeated cleaning; what type of level gauge would be suitable? - HCBBS Forum
2. Dew point meter for measuring high-purity oxygen - HCBBS Forum
3. Detailed explanation of MOSFET parameters - HCBBS Forum
4. Automatic control of liquid level and control valves - HCBBS Forum
5. Samson 3730-3: After the intelligent locator is initialized, the valve oscillates – how to adjust the parameters? - HCBBS Forum
6. “The trademark battle between \"North and South Daoxiangcun\" remains unresolved; instrument manufacturers should also be cautious - HCBBS Forum
7. How to calculate the failure rate of solenoid valves - HCBBS Forum
8. Cable design and selection - HCBBS Forum
9. Symbols for centrifugal exhaust fans and blowers in P&ID diagrams - HCBBS Forum
10. Electromagnetic flowmeter parameter setting - HCBBS Forum
11. New models for liquefied natural gas transportation are now in use, and level measurement instruments will play a crucial role in this process - HCBBS Forum
12. Lessons from Xiaomi’s Development: What Instrument and Meter Companies Should Pay Attention To (Part 2) - HCBBS Forum
13. Instrument automation control - HCBBS Forum
14. 【Control Version】One Question per Day 20180612 - HCBBS Forum
15. What kind of flow meters are generally suitable for boiler feed water with small pipe diameters (below DN50)? - HCBBS Forum
16. The 9th Safety Instrumentation Training Course organized by the China Chemical Safety Association - HCBBS Forum
17. Issues related to the selection and maintenance of instruments for oxalic acid systems - HCBBS Forum
18. Emerson 475 handheld controller - HCBBS Forum
19. Environmental protection tasks related to the instrumentation position - HCBBS Forum
20. Issues regarding the integration of SIS systems and DCS systems - HCBBS Forum
21. Why is there water in the main pipe, with an instrument air dew point of -36.6 and a pressure of 0.7 MPa? - HCBBS Forum
22. Reasons for pressure fluctuations in methanol cracking hydrogen production reactors - HCBBS Forum
23. Instrument completion documents - HCBBS Forum
24. 34 tables of installation and commissioning standards for Petrochemical 3453 instruments - HCBBS Forum
25. Domestic brand transmitters - HCBBS Forum
26. Can cable trenches be used together with direct burial? - HCBBS Forum
27. I’m new and planning to enter the PLC industry. - HCBBS Forum
28. Implementation of three impulse control systems in DCS - HCBBS Forum
29. Thank you all. I’ll rephrase the question: when the control valve for shutdown fails, the valve closes to 30% – how can this be achieved? - HCBBS Forum
30. The meaning of the actuator legend - HCBBS Forum
31. 【Control Version】One Question per Day 20180608 - HCBBS Forum
32. Installation of the weighing module on the kettle - HCBBS Forum
33. In the PKS configuration, there’s nothing in front of that symbol; what’s the situation? - HCBBS Forum
34. Liquid level measurement in vertical LNG storage tanks - HCBBS Forum
35. Why is instrument automation listed under the process category? - HCBBS Forum
36. Plant Flow Measurement and Control Handbook - HCBBS Forum
37. Alibaba establishes “Pingtouge” company – What can the instrumentation industry learn from this? - HCBBS Forum
38. Power distribution for solenoids of pneumatic valves - HCBBS Forum
39. Screw compressor trips due to unplanned interlock shutdown - HCBBS Forum
40. Four key features of relay selection - HCBBS Forum
41. Fault repair of control valves, fault diagnosis of conventional instruments - HCBBS Forum
42. Issues regarding the management of meter calibration - HCBBS Forum
43. When 9 standard resistors of 0.2 grade and 1000Ω are connected in series, the error in the total resistance of the series connection is (　　)Ω. - HCBBS Forum
44. Pneumatic circuit diagram of the control valve, please explain - HCBBS Forum
45. Does anyone have any learning materials for the ICS TRUSTED TOOLSET configuration software? - HCBBS Forum
46. What should the pressure reading be when a swirl vortex flow meter is not installed? - HCBBS Forum
47. Dry contact (limit switch) - HCBBS Forum
48. Regarding the issue of SIL3 system degradation - HCBBS Forum
49. S7-200 series CAD drawings - HCBBS Forum
50. A brief discussion on the negative pressure issue in pressure sensors - HCBBS Forum
51. Transmitter - HCBBS Forum
52. How do I read this pressure gauge? - HCBBS Forum
53. Characteristics of the standard gauge method for vortex flowmeters - HCBBS Forum
54. In American standard flanges, what does this code mean? - HCBBS Forum
55. Urgent: We have installed several plug-in vortex flowmeters on-site; do we need the calculation formulas for temperature and pressure compensation? ? - HCBBS Forum
56. DO point plus relay - HCBBS Forum
57. Difference between fiber-optic composite overhead phase conductors OPPC and OPOC - HCBBS Forum
58. Seeking help with controller FS850S - HCBBS Forum
59. 【Control Version】One Question per Day 20180604 - HCBBS Forum
60. The difference between a steam trap and a desuperheater! - HCBBS Forum
61. Issues related to the application of explosion-proof product certification - HCBBS Forum
62. Dear seniors, could you please recommend some gas turbine flowmeters from joint-venture brands? - HCBBS Forum
63. Valve positioner, Siemens 6dr5020-0en01-0A0A - HCBBS Forum
64. Understanding of the process for measuring and displaying process parameters - HCBBS Forum
65. Why can’t the PLC’s Ethernet port communicate in a protocol-free manner like the serial port? - HCBBS Forum
66. Regarding the automatic and manual switching of the self-protection valve - HCBBS Forum
67. I’d like to ask the experts: I want to learn Roswell PLC on my own - HCBBS Forum
68. How to protect the solenoid valve of a pneumatic butterfly valve outdoors? - HCBBS Forum
69. Valve SIL certification - HCBBS Forum
70. Inquiry about Modbus communication cable models - HCBBS Forum
71. What does \"double branches for thermistor insertion depth\" mean? - HCBBS Forum
72. Can the MCC and DCS cabinets be placed in the same building? - HCBBS Forum
73. Piping diagram chemical instrumentation symbols - HCBBS Forum
74. Seeking advice on instrument ports for glass-lined equipment - HCBBS Forum
75. Siemens Positioner Manual 1 - HCBBS Forum
76. Automated Instrumentation Test Questions - HCBBS Forum
77. Regarding the selection of instrument tubing - HCBBS Forum
78. Alarm from ALR121 communication card for communication with SIS via CS3000 - HCBBS Forum
79. What is “secondary calibration of combustible gas detectors”? - HCBBS Forum
80. Which instruments need to be removed during pipeline pressure testing and purging? - HCBBS Forum
81. Can the self-acting regulating valve for nitrogen sealing in storage tanks adjust the pressure from 0.4 MPa to 2 KPa in one step? - HCBBS Forum
82. What should multi-point pressure extraction using standard orifice plates be called? - HCBBS Forum
83. Seeking expert advice on flow meter selection - HCBBS Forum
84. Under what circumstances do the signals indicating that the valve is in the open or closed position exist simultaneously? - HCBBS Forum
85. What is illegal electricity use? - HCBBS Forum
86. Electric actuator for electric valves with SIL certification - HCBBS Forum
87. The flow rate of the hydrogen chloride synthesis furnace is dropping - HCBBS Forum
88. Problems with double-flange level gauges - HCBBS Forum
89. Seeking help regarding PID chart control - HCBBS Forum
90. Symbols in the drawing - HCBBS Forum
91. How to replace the battery in a Tricon - HCBBS Forum
92. Questions about the classification of thermal resistors - HCBBS Forum
93. The lead wires of the temperature sensing element in the high-voltage motor are charged, with a voltage of 20–50 volts. What’s going on? - HCBBS Forum
94. For tank areas classified as major hazard sources of level 1 or 2, what are the functions, aspects, and facilities related to emergency shutdown? - HCBBS Forum
95. How to operate a pneumatic butterfly valve manually and automatically - HCBBS Forum
96. Raman spectrometer - HCBBS Forum
97. Does ESD fall under SIS? I couldn’t understand that sentence. - HCBBS Forum
98. Interlocking problem - HCBBS Forum
99. Why are butterfly valves chosen over ball valves for industrial remote water meters? - HCBBS Forum
100. thermocouple - HCBBS Forum