English — Forum #350 (Page 110/163)

1. Process interlock – which field is responsible for that? Process or instrumentation? - HCBBS Forum
2. Questions regarding chain alarms - HCBBS Forum
3. Principle and application of level switches (meters) - HCBBS Forum
4. Dew point meter - HCBBS Forum
5. Can V-cone flow meters and balanced flow meters be used interchangeably? - HCBBS Forum
6. A pull-up resistor is required for the pulse signal output of electromagnetic flowmeters - HCBBS Forum
7. Let me inform you about which domestic manufacturers are capable of developing SIS systems - HCBBS Forum
8. Research on the Mechanism and Applications of High-Precision Fiber Optic Level Sensing - HCBBS Forum
9. Those who need solid mass flow meters or flow velocity meters can leave their WeChat ID or email address - HCBBS Forum
10. I would like to ask everyone about the redundancy issue of two-way three-port solenoid valves - HCBBS Forum
11. Seek expert help to resolve difficulties with V-cone flow meters. - HCBBS Forum
12. Have you used Emerson’s K100, K200, and K300 series mass flow meters? - HCBBS Forum
13. Do I need to remove the nearby automated instruments when welding? - HCBBS Forum
14. Help: How to arrange the gas detectors in liquid ammonia spherical tanks - HCBBS Forum
15. What parameters should be considered when ordering and selecting a tuning fork level switch? - HCBBS Forum
16. Who has an ARCA (German Arca) -827A valve positioner? - HCBBS Forum
17. PID - HCBBS Forum
18. The relationship between fire protection categories A, B, C, and D and explosion-proof areas - HCBBS Forum
19. Wiring of electronic pressure switch contacts - HCBBS Forum
20. Online catalyst particle analyzer for the three spin-out/in entries of the catalytic cracking unit - HCBBS Forum
21. Problems with the protective sleeve of radio frequency admittance level gauges - HCBBS Forum
22. Asking about everyone's PID issue - HCBBS Forum
23. What major is required for a senior engineer in instrument design? - HCBBS Forum
24. Operation and maintenance of DCS control systems - HCBBS Forum
25. Flow meter wiring - HCBBS Forum
26. A three-step strategy to drive the transformation and upgrading of domestic instruments and meters - HCBBS Forum
27. Key responsibilities of DCS engineers - HCBBS Forum
28. Issues with using level switches to measure levels in coking plants - HCBBS Forum
29. Pressure control single-loop failure - HCBBS Forum
30. Manual for the Yokogawa YTA 610 temperature transmitter, HART menu tree - HCBBS Forum
31. Are these two rs contradictory? - HCBBS Forum
32. Why is hot water tracing suitable for cold regions? - HCBBS Forum
33. Are there any friends who will be attending the 3rd Petroleum and Chemical Process Control Technology Conference? - HCBBS Forum
34. 903 Hydrogen Sulfide Gas Online Analyzer Instruction Manual - HCBBS Forum
35. Differences between coaxial and dual-rod guided wave radars - HCBBS Forum
36. Does the forum sell level gauges such as E+H or those from other brands? - HCBBS Forum
37. That tiny relay on the instrument – how is it used to drive an AC contactor in order to control the large water pump? I don’t know how to do it; who can teach me? - HCBBS Forum
38. Seeking help with Hilscher MACSV system - HCBBS Forum
39. 【Control Version】Daily Question 20180611 - HCBBS Forum
40. The magnetic flap level gauge is rising slowly - HCBBS Forum
41. Automatic water quality monitoring stations will be established in the Yangtze River basin; demand for instruments and equipment is increasing - HCBBS Forum
42. Feed pump frequency curve - HCBBS Forum
43. The relationship between total alkalinity, carbonate hardness, and pH - HCBBS Forum
44. Rosemount vortex flow meter - HCBBS Forum
45. Rosemount 1199 remote transmission flange - HCBBS Forum
46. What are the reasons for the reduced accuracy of turbine flowmeters? - HCBBS Forum
47. Reactor cooling, heating, and constant temperature control system - HCBBS Forum
48. Leave your contact information if you sell domestic magnetic flap level gauges - HCBBS Forum
49. What manufacturer produces this self-acting valve? - HCBBS Forum
50. The temperature transmitter is connected to Hart, but the device cannot be found - HCBBS Forum
51. The outlet pressure of the pump is 0.05 MPa, and the range of the pressure gauge is 0–1.6 MPa. The pointer of the pressure gauge does not move, but it moves when the drain valve is opened. What’s going on? - HCBBS Forum
52. Unit of electromagnetic flowmeter, - HCBBS Forum
53. Help request: Single-loop flow ratio control - HCBBS Forum
54. man steam turbine braun system - HCBBS Forum
55. Material issues with control valves - HCBBS Forum
56. Design of the central control room and related requirements - HCBBS Forum
57. How to lead a new team (control system team) - HCBBS Forum
58. I would like to ask about methods for cooling high-temperature media - HCBBS Forum
59. Issue of vertically installed cables at the top of elevated torches - HCBBS Forum
60. Independent development does not mean isolation; instrument and meter companies should focus on competition and learning* - HCBBS Forum
61. Which sensor is used to measure the continuous level of coal powder? - HCBBS Forum
62. Problems with the level gauge - HCBBS Forum
63. What’s the problem with this flow meter not being accurate? - HCBBS Forum
64. Seeking help regarding several letter combinations in the instrument PID diagram - HCBBS Forum
65. Please recommend switch-type instruments for measuring bubbles that form on the surface of the liquid in a reaction vessel - HCBBS Forum
66. Difference between E*da and TUV certification - HCBBS Forum
67. Wiring of Siemens PLC EM235 - HCBBS Forum
68. MODBUS and OPC communication - HCBBS Forum
69. How to select a solenoid valve? - HCBBS Forum
70. What is the function of the compensating spring on the feedback arm of the DVC6010 locator? - HCBBS Forum
71. Flange help post - HCBBS Forum
72. Urgently need knowledge related to CEMS - HCBBS Forum
73. Small tips for extending the service life of control valves - HCBBS Forum
74. Solenoid valve - HCBBS Forum
75. What software is used to create the illustrations in a paper? - HCBBS Forum
76. Installation method of pneumatic control valve - HCBBS Forum
77. 【Help】Discussion on the errors of flow meters at both ends of a 10-kilometer long pipeline - HCBBS Forum
78. Analyzing the frosting issue on the exterior of a constant temperature and humidity test chamber - HCBBS Forum
79. Differences in the installation styles of balance flowmeters - HCBBS Forum
80. What is the difference between a safety barrier and an isolation barrier? - HCBBS Forum
81. How to calculate the consumption of calibration gas for online analysis instruments in modern coal chemical industry - HCBBS Forum
82. Control valve - HCBBS Forum
83. How to refill the sealant in a diaphragm pressure gauge when it leaks - HCBBS Forum
84. Why does the flow rate in the pipeline increase significantly when the bypass valve of the control valve is opened? - HCBBS Forum
85. Curve selection in PID control - HCBBS Forum
86. What kind of connectors are needed to communicate between the S7-300 and my laptop? - HCBBS Forum
87. How to completely uninstall the installed Siemens software - HCBBS Forum
88. Instrument grounding - HCBBS Forum
89. I would appreciate it if an expert could give some advice on the image below - HCBBS Forum
90. Has anyone who is an expert played with P+F products? I’d like some advice - HCBBS Forum
91. Installation issues with clamp-type electromagnetic flowmeters - HCBBS Forum
92. Xiaobai asks experts to upload an EPLAN tutorial - HCBBS Forum
93. Pneumatic amplifier - HCBBS Forum
94. A question regarding air-operated control valves - HCBBS Forum
95. Counterpressure - double-disc globe valve cover - HCBBS Forum
96. Check the PID and instrument IO list - HCBBS Forum
97. A beginner seeking advice: regarding the new SIS system, selection of on-site control valves - HCBBS Forum
98. 【Control Version】One Question per Day 20180617 - HCBBS Forum
99. Installation clearance between thermometer and heat sleeve - HCBBS Forum
100. The MTL safety barrier is an important component of intrinsically safe systems - HCBBS Forum