English — Forum #350 (Page 52/163)

1. The alarm signal for levels below 4MA at the site is cleared - HCBBS Forum
2. Three-valve and five-valve manifold handle color coding - HCBBS Forum
3. Question: Is the water consumption for boilers equal to the steam output? The owner keeps saying that the reading of the steam flow meter is lower than the water consumption - HCBBS Forum
4. Those interested in liquid stratification detection technology, please add me on WeChat - HCBBS Forum
5. How many levels can be set for the DCS level alarm? - HCBBS Forum
6. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-03 - HCBBS Forum
7. Analysis of PH measurement error - HCBBS Forum
8. The discharge issue of safety valves - HCBBS Forum
9. Pump outlet line pressure gauge - HCBBS Forum
10. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-15 - HCBBS Forum
11. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-10 - HCBBS Forum
12. Seek recommendations for portable, contactless gas/liquid flow meters - HCBBS Forum
13. Common faults of angular travel electric actuators and their solutions - HCBBS Forum
14. I would like to ask how to calculate the air volume required for measuring backflow pressure and liquid level - HCBBS Forum
15. How is traffic accumulation calculated? - HCBBS Forum
16. Instrument parameters of the process package from relevant manufacturers at the design institute - HCBBS Forum
17. Where can one apply to become a senior instrument technician? - HCBBS Forum
18. Is it necessary to apply upper and lower limits to the dial of the on-site bimetallic thermometer? - HCBBS Forum
19. Steel strip level gauge - HCBBS Forum
20. The DVC6200 automatic calibration is encountering this issue - HCBBS Forum
21. Under what types of devices or operating conditions is it necessary to install lightning protection components in the automatic control cabinet? - HCBBS Forum
22. Domestic automatic control valve manufacturers - HCBBS Forum
23. Are the DC power supply modules on the field side and the system side of the control system separated? - HCBBS Forum
24. Is the SAMA diagram part of the design scope for the instrumentation field in engineering companies? - HCBBS Forum
25. German KSB valves - HCBBS Forum
26. What do HS and HSR mean in the configured I/O points? - HCBBS Forum
27. Series of Posts on Preventing Common Problems in Instrument Installation (13) - HCBBS Forum
28. How to configure the simulation for Zhejiang University Zhongkong ECS700 - HCBBS Forum
29. Vortex flowmeters are used to measure different media; let’s analyze the results - HCBBS Forum
30. Distributed gas alarm - HCBBS Forum
31. How to measure powder flow rate - HCBBS Forum
32. Samson locator - HCBBS Forum
33. Cable insulation testing - HCBBS Forum
34. PLC teaching videos, starting from electrical engineering, for beginners with no prior knowledge - HCBBS Forum
35. Regarding the setting values of the three-input control coefficients for the waste heat boiler - HCBBS Forum
36. The hardware power card in the DCS system needs to be repaired - HCBBS Forum
37. I would like to know what instruments PY-611A and PY-611B in the diagram are, and what functions they serve - HCBBS Forum
38. ABBA network issues - HCBBS Forum
39. The density difference is very small; what type of level gauge should be used for measurement? - HCBBS Forum
40. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-01-26 - HCBBS Forum
41. Guys, I need help with the low-pressure frequency converter of the water pump - HCBBS Forum
42. If I want to publish articles or papers on self-control, are there any journals you can recommend? Thank you! - HCBBS Forum
43. Problems with level float level gauges - HCBBS Forum
44. Abnormal temperature of air compressor motor bearing - HCBBS Forum
45. Can solenoid valves in petrochemical plants be used as on-off valves in process pipelines? - HCBBS Forum
46. All instruments now use fiber optic transmission; how much data can be transmitted? - HCBBS Forum
47. CCC limit control in the anti-surge control system of centrifugal compressors - HCBBS Forum
48. Standard measurement method for ground resistance testing - HCBBS Forum
49. Seek rankings for temperature, pressure, level, flow rate, and valve manufacturers - HCBBS Forum
50. Have any control valves from Zhejiang Bell been used? How is the quality? - HCBBS Forum
51. IDS-2 series intelligent viscosity meters - HCBBS Forum
52. What are the requirements regarding flange standards when purchasing imported valves? - HCBBS Forum
53. Discussion on filter pressure relief valves - HCBBS Forum
54. As shown in the figure, the double-flange transmitter is used to measure the liquid level, with the transmitter installed on the upper side of the negative pressure side. - HCBBS Forum
55. Activated carbon injection in waste-to-energy plants saves space - HCBBS Forum
56. MSpowerboost inverter low-voltage ride-through cabinet - HCBBS Forum
57. HEP valve positioner - HCBBS Forum
58. What is the control relationship in Mode C during DCS operation? - HCBBS Forum
59. What type of control valve should be used for steam control? - HCBBS Forum
60. Bentley probe sensor issue - HCBBS Forum
61. What flow meter should be used for measuring lauroyl chloride flow? - HCBBS Forum
62. S7-1200 Modbus RTU Communication (1) – Configuration Parameters - HCBBS Forum
63. Instrument measurement of medium emission issues - HCBBS Forum
64. Installation location of gas alarm controller - HCBBS Forum
65. What is the significance of online measurement of moisture in calcium carbide slag? - HCBBS Forum
66. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2021-02-04 - HCBBS Forum
67. There is white, condensed water-like substance inside the electric valve actuator - HCBBS Forum
68. I would like to ask where this type of exclusion agent can be purchased - HCBBS Forum
69. Self-acting pressure control valve compensation chamber - HCBBS Forum
70. Solutions for removing blockages in conveyor chutes - HCBBS Forum
71. Indoor environmental monitoring systems feature high resolution and good stability - HCBBS Forum
72. What logic do ENG and DEENG represent? - HCBBS Forum
73. The installation requirements for ultrasonic and microwave (radar) level gauges are as follows - HCBBS Forum
74. Should a pressure transducer using gauge pressure or absolute pressure be chosen when the operating pressure is slightly negative? - HCBBS Forum
75. Direction of high and low pressure sides of differential pressure transmitter - HCBBS Forum
76. Chromatography error - HCBBS Forum
77. Discussion on the distance between instrument cabinets and Class A and B process rooms - HCBBS Forum
78. Regarding thermometer sleeves - HCBBS Forum
79. What does this symbol mean? - HCBBS Forum
80. I want to ask what kind of resistor this is - HCBBS Forum
81. The black technology behind the Memosyn locator? Is there? - HCBBS Forum
82. Transmitter venting - HCBBS Forum
83. About the water pressure calibration of the inner cylinder of the jacket cylinder - HCBBS Forum
84. throttling element - HCBBS Forum
85. Hollyland DCS - HCBBS Forum
86. SIS system alarm fault - HCBBS Forum
87. The installation requirements for internal floating ball level gauges are as follows: - HCBBS Forum
88. What device is used to measure the ppm concentration of gasoline vapor in the air? - HCBBS Forum
89. Which are the reputable domestic manufacturers of instrumentation? - HCBBS Forum
90. How are external level measuring instruments applied in storage areas for hazardous chemicals such as those in the petrochemical industry - HCBBS Forum
91. What instrument is used to measure the content of dimethyl sulfate online? - HCBBS Forum
92. How can the opening degree of the control valve be adjusted using a handwheel in the event that any of the following three types of control valves fail? - HCBBS Forum
93. Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic 2021-01-02 - HCBBS Forum
94. Two types of ultrasonic applications - HCBBS Forum
95. If price is not a factor, can ball valves be used to replace plug valves in all situations? - HCBBS Forum
96. Regarding instrument calibration labels - HCBBS Forum
97. Please recommend a model of single-flange gauge pressure transmitter - HCBBS Forum
98. Electromagnetic flowmeter - HCBBS Forum
99. What do the symbols on the signal line of the pressure difference relay PDY in the PID diagram mean? - HCBBS Forum
100. Problems with E+H mass flow meters - HCBBS Forum