Can a local pressure gauge and a pressure transmitter share the same pressure tapping point?
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Can a local pressure gauge and a pressure transmitter share the same pressure tapping point? Is there any standard or specification that specifies this? Thank you
Sure, I haven’t seen any standard that specifies this yet
Of course. In fact, by using a pressure transmitter with an on-site display, it is entirely possible to do without a pressure gauge; if an on-site reading is needed, one can simply look at the display of the pressure transmitter.
No, please refer to SH3184
There seem to be similar installation diagrams in the installation manual. You can check it out; it doesn’t seem to be mentioned in the regulations regarding this
I believe the tank farm design specifications are not applicable to other installations.
I believe the tank farm design specifications are not applicable to other installations.
I believe the tank farm design specifications are not applicable to other installations.
We should analyze each specific issue individually; it’s not possible to simply say that the tank area regulations are not suitable for other types of installations – a risk analysis is also necessary. It is generally not recommended, as there may be issues related to reaction time, especially when the material tends to solidify or crystallize, or when it has self-polymerizing properties.
It’s okay; according to HG/T 21581-2012, Automatic Control Installation Diagrams, HK03-R016: Connection Diagram for Pressure Gauges and Pressure Transmitters Installed Together
The same pressure measurement point can be used; the pressure gauge is needed for on-site inspections by maintenance personnel, while the transmitter is used for remote control from the control room. This setup also provides a fault tolerance mechanism – in the event that one of the transmitter or pressure gauge fails, the other can still carry out monitoring functions