Cerabar PMP21 IO-Link About this document
Endress+Hauser 7
Example
• Sensor: 10 bar (150 psi)
• Upper range limit (URL) = 10 bar (150 psi)
Turn down (TD):
• Calibrated/adjusted span: 0 to 5 bar (0 to 75 psi)
• Lower range value (LRV) = 0 bar (0 psi)
• Upper range value (URV) = 5 bar (75 psi)
TD =
URL
|URV - LRV|
TD =
10 bar (150 psi)
= 2
|5 bar (75 psi) - 0 bar (0 psi)|
In this example, the TD is 2:1.
This span is based on the zero point.
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