English — Forum #350 (Page 41/163)

1. DCS control room, instrument operation - HCBBS Forum
2. Disorder occurs when the aromatic ACCS system switches to DCS control - HCBBS Forum
3. Seeking help with selection of control valves - HCBBS Forum
4. For a two-coil solenoid valve, how is it represented in a cause-and-effect logic diagram to indicate that one of the coils is disconnected? - HCBBS Forum
5. Does an outdoor flue gas pressure transmitter require heating? - HCBBS Forum
6. 1834 Ubbelohde viscometer - HCBBS Forum
7. Sharing the Instrumentation and Control Design Specification Catalog (IV): Design Coordination in Fire Protection, HVAC, Water Supply and Drainage, and Specialized Sub-items - HCBBS Forum
8. Calculation of pressure check interference for double-flange level gauges in pipelines - HCBBS Forum
9. The issue of the speed at which Intouch data is refreshed - HCBBS Forum
10. How should solenoids connected in series be wired? - HCBBS Forum
11. Instrument automatic control - HCBBS Forum
12. For corrosive media, how should the diaphragm material be chosen? - HCBBS Forum
13. Recommendations for temperature sensors suitable for low-temperature environments - HCBBS Forum
14. Layout of DCS engineer station - HCBBS Forum
15. Teaching you how to select transmitters compatible with control valves - HCBBS Forum
16. How to draw an interlock logic diagram? - HCBBS Forum
17. Online trace water measurement - HCBBS Forum
18. Requirements for explosion-proof gland fittings and wire diameter - HCBBS Forum
19. Magnetostrictive interface meter - HCBBS Forum
20. Industry experts from Hualu, Zhongke Synthetic Oil, Sinopec Jinan Refining & Chemical, Chongqing Tianyuan Chemical, Shandong Xinhua Pharmaceutical, and Shandong Shitong Chemical congratulated Dinghua Electronics on its 30th anniversary! - HCBBS Forum
21. Seeking help with SIS interlock logic issues - HCBBS Forum
22. Filling out the instrument data sheet - HCBBS Forum
23. Installation of remote IO boxes in explosion-proof areas - HCBBS Forum
24. Please tell me about three-impulse cascade control of drum water level. - HCBBS Forum
25. Can flow meters used in trade settlement be replaced by online versions instead of offline ones? - HCBBS Forum
26. Problems with self-acting control valves - HCBBS Forum
27. Selection issues for the pressure gauge at the outlet of the sludge screw pump - HCBBS Forum
28. Conval professional valve selection software - HCBBS Forum
29. Seek help regarding faults and alarms in electromagnetic flowmeters - HCBBS Forum
30. Aspen Dynamic, MATLAB simulation issues - HCBBS Forum
31. Operation of Chemical Process Automation Control Instruments – The Issue of DCS Engineers Working Without Proper Certifications - HCBBS Forum
32. A brief analysis of the differences and detection methods between phenolphthalein alkalinity and total alkalinity - HCBBS Forum
33. Does the “three-out-of-two” configuration for level gauges in ordinary drum vessels refer only to the level gauge of the balance vessel? - HCBBS Forum
34. Regarding how to proceed with PID tuning - HCBBS Forum
35. What should be taken into account when installing control valves and flow meters together? Are there any standards or guidelines? - HCBBS Forum
36. Can the liquid level alarm for the storage tank be changed? - HCBBS Forum
37. The two two-position five-way solenoid valves are configured in a redundant manner - HCBBS Forum
38. Dinghua Radar Knowledge Lecture: Teach you to identify the measurement blind area of ​​guided wave radar level meter - HCBBS Forum
39. Thermistor grounding issue - HCBBS Forum
40. What does it mean to be connected like this, with TI and TT? - HCBBS Forum
41. GB/T41261-2022 Analysis Application Sharing - HCBBS Forum
42. Can monitoring cabinets and telephone network boxes be placed in the DCS cabinet room? - HCBBS Forum
43. Latest ATEX explosion protection rating chart - HCBBS Forum
44. Central Control ECS700 Operation Log - HCBBS Forum
45. When the compressor is operating at full load, will the air supply volume definitely reach the rated value specified in the data sheet? Now the readings from the flow meter are much lower - HCBBS Forum
46. Differential pressure transmitter - HCBBS Forum
47. Engineering design of toxic and flammable gas detectors - HCBBS Forum
48. Regulator valve with cut-off function, SIS system problem - HCBBS Forum
49. What is the configuration software for Siemens lower-level devices called? - HCBBS Forum
50. Temperature and vibration measurement for fans and pumps - HCBBS Forum
51. What type of pressure gauge is used for storing and filling liquid nitrogen? - HCBBS Forum
52. Orifice plate pressure tapping - HCBBS Forum
53. Problems with ultrasonic level gauges - HCBBS Forum
54. Valve body identification - HCBBS Forum
55. Thermocouple accuracy out of spec - HCBBS Forum
56. Viscometer Stand, 4 positions — Hangzhou Zhenyue Technology - HCBBS Forum
57. What is this on the regulating valve? What does it do? - HCBBS Forum
58. What does PEM electrolysis for hydrogen production mean? - HCBBS Forum
59. Fisher anti-surge valve instrument air circuit - HCBBS Forum
60. Seeking help with ABB positioners - HCBBS Forum
61. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic 2021-01-21 - HCBBS Forum
62. What does this pattern mean? - HCBBS Forum
63. Today, the design institute stated that it’s not possible to do it. Aren’t there **regulatory requirements prohibiting remote DCS-initiated pump startup? Or as required by local regulations; I hope everyone can give some suggestions - HCBBS Forum
64. How to take the exam to become a technician in the field of petrochemical instrumentation and automation? - HCBBS Forum
65. What is the measurement principle of this type of differential pressure level transmitter, namely E+H? - HCBBS Forum
66. The issue with the thermometer’s sleeve - HCBBS Forum
67. FOXBORO Instrumentation Sharing —— “Transmitters” - HCBBS Forum
68. 0.4kV low-voltage distribution system solutions against voltage fluctuations: voltage fluctuation resistance modules, comprehensive motor vibration resistance devices, permanent voltage fluctuation resistance modules, motor protection against voltage fluctuations, frequency converter protection against voltage fluctuations, voltage fluctuation stabilization, contactors... - HCBBS Forum
69. Case Study | Successful Application of DHE Radar Level Gauge in Heavy Water Tanks - HCBBS Forum
70. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-29 - HCBBS Forum
71. Instrument reading - HCBBS Forum
72. Where is the circle of analyzing instruments? - HCBBS Forum
73. Problems with orifice plate flow meters - HCBBS Forum
74. GPRS wireless remote transmission flow meter, electromagnetic flow meter - HCBBS Forum
75. Dear teachers, I’m a beginner in instrumentation – how should I get started? - HCBBS Forum
76. Mass flow meter communication methods - HCBBS Forum
77. Are there any recommended instruments for detecting the interface between tar and ammonia water in the mechanized clarifying tanks of coking plants? - HCBBS Forum
78. Could some expert help me identify which Yokogawa transmitter model is in this photo? Is it the old model or the new one? - HCBBS Forum
79. Can an NPN Hall element be used with two controllers? - HCBBS Forum
80. Presentation of several small features of the automatic control design software - HCBBS Forum
81. Help: Standard SH/T3153-2021 \"Code for Telecommunication Design in Petrochemical Industries\" - HCBBS Forum
82. I want to outsource some work related to electrical systems, instrumentation, and modeling - HCBBS Forum
83. Is it necessary to shut down the system in order to use Modbus for reading device data in Zhejiang University’s ZHKong DCS configuration? - HCBBS Forum
84. Regarding explosion-proof display screens - HCBBS Forum
85. Reasons for the temperature deviation measured by thermocouples in the same pipeline - HCBBS Forum
86. Application of override control in olefin projects - HCBBS Forum
87. The feeding requires a precision of two thousandths - HCBBS Forum
88. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-04 - HCBBS Forum
89. Regulation system - HCBBS Forum
90. I need help: what is the voltage of the solenoid coil? - HCBBS Forum
91. GDS System Management Regulations - HCBBS Forum
92. Do you know the advantages of using a weight-type level gauge? - HCBBS Forum
93. What approval procedures are required to open electrical instrument panels in explosion-proof areas? - HCBBS Forum
94. Principle of using proximity switches for object position detection - HCBBS Forum
95. Are valve positioners, valve controllers, and valve actuators the same thing? - HCBBS Forum
96. Are there any cheap online methods for detecting ethylene glycol concentration? - HCBBS Forum
97. For the selection of vortex flowmeters, if operation is stable without temperature and pressure compensation, how can such compensation be achieved? - HCBBS Forum
98. What system is Yokogawa using now? - HCBBS Forum
99. Adjustable flow meter - HCBBS Forum
100. The advent of dust sensors has helped us achieve the effect of measuring and reducing dust - HCBBS Forum