What do EJA range and span mean?
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This post was last edited by liu530014416 on 2021-8-28 22:09. What do \"range\" and \"extent\" mean? Why are the ranges always positive? Can’t it be set to a negative number? For example, can the diaphragm range of the EJA530E A not be set to a negative value?
The range, referred to as SPAN in technical documentation, denotes the extent of variation in the process parameters. For example, if the process varies from -30 to -100, resulting in a variation of 70, one can choose a range that is greater than 70, such as 100; this corresponds to a current variation of 4-20. Range; in E-language it is called RANGE, and refers to the values that can be measured – the minimum value that can be measured is -100, while the maximum is +200.
Let me explain it to you simply: the range of the transmitter is adjustable. The maximum and minimum values that can be set depend on the range allowed; it cannot exceed that range, otherwise the meter will be unable to take readings. Do you understand? .
The second floor is described in great detail; taking the first range as an example, if a range of 200 kPa is selected, it can actually be set to -100~100 for use.
Bro, you’re looking at the absolute value, so you can’t see the negative values
510 is absolute pressure. 530 is gauge pressure, but the table is applicable. For the measurement range of 510, change the lower limit to 0. Convert the unit to absolute pressure A.
Range: Refers to the values that can be measured. For example, if the minimum measurable value is -100 and the maximum is +200, then the lower limit of measurement is -100 and the upper limit is +200; together these are referred to as the measurement range of -100 to +200, meaning that all values within this range can be measured by this instrument； Range: refers to the absolute value of the measurement range; for example, if the measurement range is from -100 to +200, then the range is +200 – (-100) = 300.