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Transform Expressions are used for a number of purposes, including:
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- Sensor values may arrive expressed in units that are not desirable. A Transform Expression can be used to convert the units to the type desired for display.
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- Sensor values may have known errors that can be corrected with a Transform Expression before storage into the system.
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- Pulse counts generally should be converted into a rate value (units/second or units/hour), as counts do not always arrive at equal intervals due to wireless transmission issues and due to the User changing the time interval that a sensor reports. Special Transform Expressions can be used to convert the pulse counts into a rate value.
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## Simple Transform Expressions
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Transform Expressions are entered on the Sensor editing screen. The screenshot below shows a Transform
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[[images/transform_ex1.png]] |
