Who can talk about the pressure display table, pressure switch, pressure transmitter difference?
As the saying goes:
1. The pressure display table only plays a role in the observation of a point of pressure.
2. Pressure switch, generally used for alarm, that is, higher than the pressure (below) set the alarm signal (the specific principles can ask me) In short, is to the control room to issue an alarm!
3. As for the pressure transmitter, you may be wrong, you should ask the differential pressure transmitter it! Differential pressure transmitter is directly measured by the differential pressure value is directly converted into temperature or flow.
1. The pressure display table is the instrument that senses and displays the pressure value, through which the reading of the pressure value can be obtained.
2. The pressure switch is an inductive pressure and uses the sensed pressure value to control the opening / closing of the switch. Pressure-sensitive but generally does not show pressure readings, only through the opening and closing of the switch output signal.
3. Pressure transmitter is the pressure adjustment to the set pressure range after the output, the pressure value of the induction but generally not displayed.
The pressure display table is the force of the action with another intuitive way to show it.
The pressure switch is to limit the force to a range.
The pressure transmitter is the size of the pressure proportional to the output signal size through the form of current or voltage expressed
1, the pressure display table: that is, the secondary table of this table is not a single function can be a single pressure, temperature, flow, etc. to the physical effects of induction to the numerical form shown.
2, the pressure switch: is a mechanical switch, according to different needs to set the operating point value, when the pressure reaches this value, the switch action (open or off).
3, the pressure transmitter: the general need to supply power, the output 4-20mA signal, and some can show that there is no display, intelligent models can also be exported to the computer model. Function is stronger than pressure switch and pressure gauge
Display the table
Live display direct viewing convenience
Pressure Switch
It is generally controlled that the pressure is high and the pressure is low
Pressure Transmitters
And the display table a bit opposite
Is the remote display output analog signal
