What is the upper limit of the pressure range that a differential pressure transmitter can measure?
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The last edit to this post was made by yangt9 on 2015-11-8 at 15:11. Take the most commonly used models EJA110A and DMS4A--92DA as an example; their measurement range (diaphragm) is 0-100 Kpa, with a maximum operating pressure of 16 Mpa. If this differential pressure transmitter is used to measure pressure alone, what is the maximum pressure it can measure? 100Kpa or 16Mpa?
A differential pressure transmitter measures the differential pressure; when used to measure pressure alone, the negative diaphragm chamber is connected to the atmosphere while the positive diaphragm chamber is connected to the measurement tube, and it can measure up to 100 KPa. Working pressure refers to the pressure of the medium being measured.
The last edit to this post was made by HEJIYUER on 2015-11-9 at 00:09. Simply put: The differential pressure transmitter can handle pressures up to a certain value in KPA (both positive and negative values are possible); the maximum value it can measure represents the limit of that pressure. －100KPaG/100KPaG. 16M is the maximum pressure at which the diaphragm box will not be damaged. @jiaguoyun
It cannot be used to measure pressures of 16 MPa. The M diaphragm used allows for a differential pressure measurement of up to -100 to 100 KPa at most; a maximum operating pressure of 16 MPa would require both pressure chambers to be under pressure simultaneously. If one side is subjected to high pressure, it may damage the transmitter. The diaphragm of a transmitter designed for measuring 16 MPa pressures differs significantly in terms of thickness and strength from that of a differential pressure transmitter using an M diaphragm
16MPa means that the diaphragm box will not be damaged when it can withstand a pressure of 16MPa. For example, when using a differential pressure transmitter to measure water pressure, the range refers to the difference in pressure acting on the diaphragms for positive and negative pressures, while 16 MPa denotes the water pressure. If the water pressure exceeds 16 MPa, the diaphragm box will be damaged. One states that the pressure of the medium is 16 MPa, while the other refers to the pressure difference between the positive and negative sides of the throttling device, that is, the range.
0`100KPA indicates that the differential pressure between the two ink cartridges is most accurately measured within this range. It can measure one-way pressure, with the maximum one-way pressure not exceeding 16 Mpa.
If the range is 0-100 KPa, can it be set so that the low pressure value is -100 and the high pressure value is +100? Or if the low voltage is set to -100, can the high voltage be set to at most 0? I seek advice from experts.
The diaphragm box can withstand a pressure of only 100 Kpa; therefore, in the case of single measurement, the maximum pressure that can be measured is 100 Kpa
No, what I mean is: for example, the EJA110A DMS4A--92DA model has a measurement range (diaphragm) of 0-100 Kpa. Is it possible to set the lower limit of this range to -100 and the upper limit to +100? Is that feasible?
It must be done using the smaller value; the larger pressure value is only for reference