English — Forum #350 (Page 46/163)

1. Distributor - HCBBS Forum
2. The nameplate of the pneumatic diaphragm control valve only has the BENT mark - HCBBS Forum
3. Could the experts please explain what function these two power modules serve? ? ? ? ? - HCBBS Forum
4. Is methylamine toxic or flammable? - HCBBS Forum
5. Flow meter consultation - HCBBS Forum
6. Professional materials that top-tier design institutes do not disclose to the outside! Quickly save it - HCBBS Forum
7. System commissioning failure caused by a mistake in volume units when selecting flow control valves together - HCBBS Forum
8. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-30 - HCBBS Forum
9. Solenoid valve - HCBBS Forum
10. In what special operating conditions are isolating fluids required for instruments? - HCBBS Forum
11. Verification of the CV value of the valve - HCBBS Forum
12. What are DCS, DEH, TSI, and ETS, and what is their relationship? - HCBBS Forum
13. The issue of the timing for interlocked resection - HCBBS Forum
14. Instrument issue - HCBBS Forum
15. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-05 - HCBBS Forum
16. Can a electric valve be controlled by both the SIS and DCS systems? - HCBBS Forum
17. Does the flow direction of the fluid affect the elbow flow meter? - HCBBS Forum
18. Orifice plate calculation tool - HCBBS Forum
19. Central control system - HCBBS Forum
20. “Section 7.3.4 of version 3521-2013 describes the redundancy testing for the DCS CPU; this can be carried out through the status indicator lights on the cards, as well as... - HCBBS Forum
21. Does calculating temperature for two channels not count as two sensors? - HCBBS Forum
22. Is there an error in the typical diagram of the XV valve SIS interlock shutdown? - HCBBS Forum
23. The for loop in the Yokogawa DCS SFC block runs once per second; how can efficiency be improved? I’ve just started learning*; I hope the seniors here can help me figure things out - HCBBS Forum
24. In the installation of flow meters, what diameters are being compared when it comes to the diameter ratio? - HCBBS Forum
25. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-30 - HCBBS Forum
26. The electromagnetic flowmeter’s tube is empty; the gauge shows flow, but it is unstable. - HCBBS Forum
27. Control valve selection calculation software, XP system - HCBBS Forum
28. What kind of valve is this? - HCBBS Forum
29. Application of sonar-type external level gauges in petrochemical plants - HCBBS Forum
30. Gas path solution - HCBBS Forum
31. A+QMC balanced flowmeter anti-salt spray treatment - HCBBS Forum
32. Can a radar level gauge measure the level of pure water? - HCBBS Forum
33. Seeking help with the central control DCS program - HCBBS Forum
34. What does this symbol mean in the logic diagram? - HCBBS Forum
35. Safety Equipment Reliability Handbook - HCBBS Forum
36. Can a vortex flow meter with built-in temperature and pressure compensation introduce temperature and pressure data into the DCS? - HCBBS Forum
37. Introduction to the control of anti-surge control in centrifugal compressors - HCBBS Forum
38. Which standard should be followed for the distance between the epoxy spherical tank and the cofferdam? - HCBBS Forum
39. Is the flexible tube between the instrument and the wire conduit required to be explosion-proof? - HCBBS Forum
40. Installation method of pressure guiding tubes in differential pressure flowmeters - HCBBS Forum
41. Can vortex flow meters really measure high-pressure gases? - HCBBS Forum
42. Storage tank interlock level value - HCBBS Forum
43. Issues regarding the new interlocking logic - HCBBS Forum
44. S7-1200 Modbus RTU Communication (2) – Writing the Slave Program - HCBBS Forum
45. 11 - HCBBS Forum
46. Linseis LFA1000 laser thermal conductivity tester - HCBBS Forum
47. Italian FLS flow probe - HCBBS Forum
48. Testing standards for insulation panels – Online measuring instruments during production - HCBBS Forum
49. How is a seamless manual-to-automatic switch achieved? - HCBBS Forum
50. Experts who understand electrical diagrams, what does this mean? - HCBBS Forum
51. What are the consequences of a large pressure difference before and after the control valve? - HCBBS Forum
52. The issue of pressure drop in control valves - HCBBS Forum
53. Can the frequency conversion control circuit be designed without an on-site operation panel? - HCBBS Forum
54. Where should the instrument ground be connected? - HCBBS Forum
55. Abnormal output from the EJA transmitter - HCBBS Forum
56. What are the specifications for the field wiring boxes used with common instruments? - HCBBS Forum
57. Article 36 of the new law: Use of gas in industries such as catering and the installation of combustible gas alarm devices - HCBBS Forum
58. What does 0.2Mpa mean for a float flow meter? - HCBBS Forum
59. Can K-type thermocouple compensation wires be used as instrument cables? - HCBBS Forum
60. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-02-01 - HCBBS Forum
61. Device instrument calibration - HCBBS Forum
62. How to perform inter-station communication for 8-byte cumulative quantities in the Zhongkong DCS JX-300 series? - HCBBS Forum
63. Which company offers high-quality standard nozzle steam flow meters? - HCBBS Forum
64. Why cannot compensation wires be connected by welding, and must they be connected only by crimping? - HCBBS Forum
65. Could you please tell me about the structure of the transmitter in the image below? ? ? ? - HCBBS Forum
66. What does the centrifugal pump switch mean? - HCBBS Forum
67. Under what flow rate are the pressure before the valve and the pressure after the valve specified by default in the control valve specification sheet? - HCBBS Forum
68. It might be a photoelectric switch - HCBBS Forum
69. I need a storage tank at atmospheric pressure that can withstand alkalis, operating at around 60 degrees Celsius; the tank’s height is 4 meters. What type of level gauge would be cost-effective and suitable for use in this scenario? - HCBBS Forum
70. What brand of PLC do you use now? - HCBBS Forum
71. I have a question regarding an emergency shut-off valve - HCBBS Forum
72. Selection of pressure transmitters for nitrogen-sealed tank tops - HCBBS Forum
73. May I ask, can carbon steel be used for 10% sodium chloride solutions at room temperature? If that won’t work, what kind of steel is good? - HCBBS Forum
74. The frequency of the inverter fluctuates from time to time - HCBBS Forum
75. What does it mean to invert in a central control DCS? - HCBBS Forum
76. Calibration of chemical process control instruments - HCBBS Forum
77. The SIS system reports a fault: clock synchronization server malfunction - HCBBS Forum
78. Seeking help in selecting a level gauge - HCBBS Forum
79. Insulation issues with cabinets and cable trays - HCBBS Forum
80. S7-1200 Profibus-DP Communication (2) – Station Configuration - HCBBS Forum
81. Who is responsible for setting the proportional-integral-derivative parameters of the control loops in chemical engineering projects? - HCBBS Forum
82. Question regarding ASCO solenoid valve models - HCBBS Forum
83. Identify devices from pictures - HCBBS Forum
84. I would like to ask how to transmit the soft start fault signal to the DCS? - HCBBS Forum
85. Have the explosion resistance design standards for petrochemical buildings come into effect? - HCBBS Forum
86. What are the disadvantages of gas ultrasonic flowmeters? - HCBBS Forum
87. Samson 3725 Positioner Chinese Manual - HCBBS Forum
88. How to adjust the flow rate of Weiliba? - HCBBS Forum
89. The installation requirements for magnetostrictive level gauges are as follows - HCBBS Forum
90. How to view backup points in the Yokogawa DCS system VP6.0? - HCBBS Forum
91. DCS Alarm Management - HCBBS Forum
92. Computer system verification - HCBBS Forum
93. How to select a laminar flow mass flow meter - HCBBS Forum
94. Requirements for straight pipe sections before and after the vortex flow meter - HCBBS Forum
95. 【Useful Info】Summary of common brands and models in the valve positioner market currently - HCBBS Forum
96. Regarding magnetic flap level gauges - HCBBS Forum
97. Those who understand cut-off valves, please take a look - HCBBS Forum
98. Issue with setting process alarm values: whether they should be within the process parameters or outside them, and what should be the set value if they are to be set outside? - HCBBS Forum
99. Flow meter for the ratio of ternary cathode materials and precursor materials in lithium-ion power batteries - HCBBS Forum
100. PID control - HCBBS Forum