English — Forum #350 (Page 27/163)

1. Regarding surge protector wiring issues - HCBBS Forum
2. Sil certification - HCBBS Forum
3. The memory unit is not understood. - HCBBS Forum
4. How does a Yokogawa vortex flow meter for measuring nitrogen, with units of Nm3/h, function? - HCBBS Forum
5. How can I modify the circuit breakage detection value for Siemens PCS7 AI channels? - HCBBS Forum
6. What is the principle behind the current indication alarm interlock? Is the interlock diagram I’ve drawn here correct? - HCBBS Forum
7. Are separate sets of SIS systems required for devices of the same type to be kept apart? - HCBBS Forum
8. PID diagram representation - HCBBS Forum
9. Are there any teachers who are familiar with mass flow controllers (MFCs)? Which manufacturers are good? - HCBBS Forum
10. Main technical specifications of the steel belt type weight level gauge (dual-chamber isolated type) - HCBBS Forum
11. ASCO solenoid valve selection and application - HCBBS Forum
12. Magnetostrictive displacement sensor - HCBBS Forum
13. 4-20mA to wireless HART output - HCBBS Forum
14. DCS system configuration issues - HCBBS Forum
15. Problems with fiberglass reinforced plastic flange gaskets - HCBBS Forum
16. What type of level gauge are you using in the tar storage tanks, and how effective is it? - HCBBS Forum
17. Maique displacement transmitter manual and selection guide - HCBBS Forum
18. Fuge pneumatic actuators and NOK pneumatic actuators - HCBBS Forum
19. Interlocking issues between GDS system and SIS system - HCBBS Forum
20. Range selection for differential pressure transmitters when measuring slight negative pressures - HCBBS Forum
21. Is it significant if the atmospheric pressure entered for the orifice plate flow meter ordering location is incorrect? - HCBBS Forum
22. Selection of control valves - HCBBS Forum
23. 【SeaChuan Safety Discussion】A040: Should explosion-proof flexible hoses be installed mandatorily? - HCBBS Forum
24. For thermal resistors and thermocouples in ordinary thermal power plant projects, is it necessary to install transmitters? - HCBBS Forum
25. Can the accuracy of domestically produced electromagnetic flowmeters reach 0.1? - HCBBS Forum
26. Should a reference sampling port be reserved downstream on the opposite side for CEMS monitoring? Why is this? - HCBBS Forum
27. Yokogawa Japan Module Model Selection Guide - HCBBS Forum
28. Chuanyi PAS300 - HCBBS Forum
29. Flue gas fan - refer to the diagram - HCBBS Forum
30. Regarding the HIACS-5000m system - HCBBS Forum
31. Flow measurement--water vapor in the gas - HCBBS Forum
32. Siemens logo - HCBBS Forum
33. 475 Manual Controller Chinese and English Menu List - HCBBS Forum
34. On the selection of interfacial liquid level for carbon disulfide - HCBBS Forum
35. For sodium hypochlorite solutions, a diaphragm pressure gauge should be used; what material should the diaphragm be made of? - HCBBS Forum
36. Is it feasible to measure the pressure or differential pressure of dust-containing flue gas using a purge pipe? - HCBBS Forum
37. Can the condenser, used for measuring steam flow, be installed below the differential pressure transmitter? - HCBBS Forum
38. PKS initialization options - HCBBS Forum
39. Seeking advice on selecting a level gauge - HCBBS Forum
40. Instrumentation for the maintenance and repair procedures of petrochemical equipment - HCBBS Forum
41. Regarding the fatal problem that occurs when installing Swagelok dual card sleeves - HCBBS Forum
42. What is the purpose of the hole in this throttle device? - HCBBS Forum
43. 1 electric contact pressure gauge, 1 relay – can these be used to control the hoist switch? - HCBBS Forum
44. Can the 4...20 mA HART signal type be connected directly to a regular AI module? - HCBBS Forum
45. Instrument question - HCBBS Forum
46. How to interpret the calculation results from exSILentia software - HCBBS Forum
47. Seeking help with the calibration calculations and practical operation of float level gauges - HCBBS Forum
48. High-pressure measurement from above - HCBBS Forum
49. 【Haichuan’s Best Practices】The recirculating water system makes full use of \"machines to replace humans\"” - HCBBS Forum
50. Zero drift issue with Emerson flowmeters - HCBBS Forum
51. When both vortex flow meters and electromagnetic types are suitable, which one is better? - HCBBS Forum
52. What are the job responsibilities that instrument technicians must know? - HCBBS Forum
53. Similar to tire pressure, pressure sensor - HCBBS Forum
54. Dinghua G80 radar level gauge – helps monitor water levels in airport drainage systems! - HCBBS Forum
55. Consultation on SIS systems - HCBBS Forum
56. Key points for chemical instrument inspection - HCBBS Forum
57. Request for assistance regarding OPC communication for Zhejiang University Zhongkong DCS - HCBBS Forum
58. Problems in measuring nitrogen flow rate using vortex flow meters - HCBBS Forum
59. Is it necessary to use a seal to manage the protective cover of the emergency stop button? - HCBBS Forum
60. Selection of 24VDC alarm power cable - HCBBS Forum
61. Electrovalve wiring - HCBBS Forum
62. Class A factory buildings are not equipped with control rooms - HCBBS Forum
63. Is it better to use Modbus TCP over network cables rather than Modbus RTU over twisted pair cables? - HCBBS Forum
64. Dear teachers, for a vacuum range of 1–10^5, what kind of vacuum gauge should be used? - HCBBS Forum
65. Which type of level gauge is more accurate - HCBBS Forum
66. 6 types of Rosemount 3051 series transmitters - HCBBS Forum
67. Fisher valves, orifice plate flowmeter calculation software - HCBBS Forum
68. Regarding the operating time of pneumatic on-off valves - HCBBS Forum
69. Dear experts, what is the meaning of an interlock logic system? - HCBBS Forum
70. Can the instruments and electrical systems share the same cable trench? - HCBBS Forum
71. Differential pressure transmitter issues - HCBBS Forum
72. About the manufacturer of automatic control valves - HCBBS Forum
73. How to prevent cavitation in the internal components of control valves - HCBBS Forum
74. Regarding the notation for explosion protection ratings - HCBBS Forum
75. The continuous tank level signal is involved in both the high-high interlock and the low-low interlock - HCBBS Forum
76. Fire protection as mentioned in the regulations - HCBBS Forum
77. Transformer winding resistance issues - HCBBS Forum
78. Issue of determining the installation height for fixed combustible and toxic gas detectors - HCBBS Forum
79. I would like to ask the experts: for a 32-channel DI card with a relay board, is it necessary to remove the fuse for the channel being used separately when operating it on its own? - HCBBS Forum
80. How is light tracing for instruments achieved? - HCBBS Forum
81. AND OR in the device interlock logic diagram - HCBBS Forum
82. Regarding the operation of the Limitok electric actuator - HCBBS Forum
83. Installation requirements for nitrogen flow meters - HCBBS Forum
84. Upgrades such as Emerson 375/475 handheld controllers - HCBBS Forum
85. \"NACE Corrosion Engineer’s Reference Book\" - HCBBS Forum
86. Several chemical companies, including Hualu Hengsheng and Shandong Jingbo, have been selected as pilot projects for the Industrial Internet in 2023 - HCBBS Forum
87. What is the working principle of the gas seal in storage tanks? - HCBBS Forum
88. 【Haichuan’s Lessons from Others】30-Year Transformation of Imported Compressor Unit Instrument Monitoring Systems into Domestic Versions - HCBBS Forum
89. What is the difference between centralized control rooms and centralized DCS? - HCBBS Forum
90. Self-acting on-off valve with 2 solenoid valves - HCBBS Forum
91. Seeking help with SIL verification issues - HCBBS Forum
92. What is the difference between DCS and SIS? - HCBBS Forum
93. Rotameter magnetic bearings - HCBBS Forum
94. Why are pH meters so unreliable? - HCBBS Forum
95. PCS7 alarm - HCBBS Forum
96. Sending out the 5th wave of introductions to instrumentation books – free download screenshots available - HCBBS Forum
97. Vertical cable tray installation - HCBBS Forum
98. Radar watch installation issues - HCBBS Forum
99. Questions about socket welding - HCBBS Forum
100. Are there any standard regulations regarding the order and time intervals for producing drawings by different specialties in design institutes? - HCBBS Forum